PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dblp: <https://dblp.org/rdf/schema#>
ASK WHERE {
  ?pub dblp:authoredBy <https://dblp.org/pid/181/1768> ; dblp:yearOfPublication "2016" ^^ xsd:gYear .
}

False. Nataliya Nikolaevna Kuchukova has published in 2016.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Hasn't Kuchukova, Nataliya Nikolaevna not published in 2016?

[Assistant]
Let's break down the question:

- The user is asking if Nataliya Nikolaevna Kuchukova has NOT published in 2016.
- This is a negative question, so the answer should be True if she has no publications in 2016, and False otherwise.
- The query should be an ASK query.

Step 1: Find the correct entity for "Kuchukova, Nataliya Nikolaevna" in DBLP.

Step 2: Find how to identify publications and their years for this author.

Step 3: Construct an ASK query that checks if there are NO publications by this author in 2016.

Let's start by searching for the entity for "Kuchukova, Nataliya Nikolaevna".

[Tool]
Top 10 entity alternatives:
1. Nataliya Nikolaevna Kuchukova, also known as Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>)
2. Natalia Nikolaevna Kuchukova, also known as Natalia Nikolaevna Kuchukova (<https://dblp.org/pid/297/9939>)
3. Nataliya Kos'myna, also known as Nataliya Kos'myna (<https://dblp.org/pid/229/1000>)
4. Nataliya Yatskiv, also known as Nataliya Yatskiv (<https://dblp.org/pid/34/10476>)
5. Nataliya Petrushenko, also known as Nataliya Petrushenko (<https://dblp.org/pid/251/8870>)
6. Nataliya Chukhrova, also known as Nataliya Chukhrova (<https://dblp.org/pid/236/6716>)
7. Nataliya Strokina, also known as Nataliya Strokina (<https://dblp.org/pid/45/9596>)
8. Nataliya Serdyukova, also known as Nataliya Serdyukova (<https://dblp.org/pid/11/3298>)
9. Nataliya Korzhyk, also known as Nataliya Korzhyk (<https://dblp.org/pid/267/6274>)
10. Nataliya Kushnir, also known as Nataliya Kushnir (<https://dblp.org/pid/05/11447>)

[Assistant]
The top match for "Kuchukova, Nataliya Nikolaevna" is:
- Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>)

Next, I need to check if this author has any publications in 2016. To do this, I need to know how to get the publications for this author and filter by year.

I'll check which properties link this author to their publications and how the publication year is represented.

[Tool]
Got 6 rows and 3 columns:
| subject                                                         | property                                     | object                        |
| --------------------------------------------------------------- | -------------------------------------------- | ----------------------------- |
| Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) | creatorname (dblp:creatorName)               | Nataliya Nikolaevna Kuchukova |
| Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) | primaryCreatorName (dblp:primaryCreatorName) | Nataliya Nikolaevna Kuchukova |
| Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) | rdf:type                                     | Creator (dblp:Creator)        |
| Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) | datacite:hasIdentifier                       | _:bn12229896                  |
| Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) | rdfs:label                                   | Nataliya Nikolaevna Kuchukova |
| Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) | rdf:type                                     | Person (dblp:Person)          |

[Tool]
Top 10 property alternatives:
1. creator name (dblp:creatorName): The full name of the creator., Creator

No other items found

[Tool]
Top 10 property alternatives:
1. creator name (dblp:creatorName): The full name of the creator., Creator
2. primary creator name (dblp:primaryCreatorName): The primary full name of the creator., creatorname, Creator

No other items found

[Tool]
Top 10 property alternatives:
1. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
2. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
3. edited by (dblp:editedBy): The publication is edited by the creator., Publication, createdBy, Creator
4. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
5. published in book (dblp:publishedInBook): The name of the book in which the publication has been published...journals and conference series are modelled as proper entities.), Publication, publishedIn
6. creator name (dblp:creatorName): The full name of the creator., Creator
7. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. created by (dblp:createdBy): The publication is created by the creator., Publication, Creator
10. published in book chapter (dblp:publishedInBookChapter): The chapter of the book in which the publication has been publis...journals and conference series are modelled as proper entities.), Publication

[Tool]
Got 5 rows and 3 columns:
| subject                                                                                | property                     | object                                                          |
| -------------------------------------------------------------------------------------------------------------------------- | ---------------------------- | --------------------------------------------------------------- |
| Nikolay A. Vershkov et al.: Opti...using Wavelet Transforms. (2022) (<https://dblp.org/rec/journals/pcs/VershkovBTKKKD22>) | authoredBy (dblp:authoredBy) | Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) |
| Nikolay A. Vershkov et al.: Opti...Polynomial Approximation. (2021) (<https://dblp.org/rec/journals/pcs/VershkovBTPCKK21>) | authoredBy (dblp:authoredBy) | Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) |
| Nikolay Ivanovich Chervyakov et ...on Using Neural Networks. (2015) (<https://dblp.org/rec/conf/aecia/ChervyakovBDKK15>)   | authoredBy (dblp:authoredBy) | Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) |
| Nikolay Nikolaevich Kucherov et ...on codes in modular code. (2021) (<https://dblp.org/rec/conf/iccs-de/KucherovKGKVK21>)  | authoredBy (dblp:authoredBy) | Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) |
| Nikolay A. Vershkov et al.: Sear...orks Supervised Learning. (2020) (<https://dblp.org/rec/journals/pcs/VershkovBKK20>)    | authoredBy (dblp:authoredBy) | Nataliya Nikolaevna Kuchukova (<https://dblp.org/pid/181/1768>) |

[Tool]
Got 65,536 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object           |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------ | ---------------- |
| Mark von Rosing et al.: Business Process Trends. (2015) (<https://dblp.org/rec/books/el/15/RosingSetal15>)                                                   | yearOfPublication (dblp:yearOfPublication) | 2015 (xsd:gYear) |
| Martijn Oldenhof et al.: Industr...rning for Drug Discovery. (2023) (<https://dblp.org/rec/conf/aaai/OldenhofAPSHSDF23>)                                     | yearOfPublication (dblp:yearOfPublication) | 2023 (xsd:gYear) |
| Wenhui Li et al.: Monocular Image Based 3D Model Retrieval. (2019) (<https://dblp.org/rec/conf/3dor/LiLNSLWXZBCCCDD19>)                                      | yearOfPublication (dblp:yearOfPublication) | 2019 (xsd:gYear) |
| Sastri Kota et al.: INGR Satellite Roadmap - 2022 Edition. (2022) (<https://dblp.org/rec/conf/5gwf/KotaGAA0BCDDCDD22>)                                       | yearOfPublication (dblp:yearOfPublication) | 2022 (xsd:gYear) |
| Artur Binczewski et al.: Polish ... Worldwide LHC Computing. (2012) (<https://dblp.org/rec/books/sp/plgrid2012/BinczewskiBCDFFGIKLLLMMMNOOPPPRRSSSSTWWWW12>) | yearOfPublication (dblp:yearOfPublication) | 2012 (xsd:gYear) |
| Emanuele Rodolà et al.: Deformab...ieval with Missing Parts. (2017) (<https://dblp.org/rec/conf/3dor/RodolaCLBBAHBCD17>)                                     | yearOfPublication (dblp:yearOfPublication) | 2017 (xsd:gYear) |
| Scott L. Fleming et al.: MedAlig...ectronic Medical Records. (2024) (<https://dblp.org/rec/conf/aaai/FlemingLHJRTBGS24>)                                     | yearOfPublication (dblp:yearOfPublication) | 2024 (xsd:gYear) |
| Marc Roelands et al.: The DiY Sm...t of Things Applications. (2011) (<https://dblp.org/rec/books/daglib/p/RoelandsPMVSLCSVBHVMGRLDCFMHRNBEARTM11>)           | yearOfPublication (dblp:yearOfPublication) | 2011 (xsd:gYear) |
| Ioannis Pratikakis et al.: Parti... for 3D Object Retrieval. (2016) (<https://dblp.org/rec/conf/3dor/PratikakisSAIKT16>)                                     | yearOfPublication (dblp:yearOfPublication) | 2016 (xsd:gYear) |
| Harald Anacker et al.: Methods f...e Design and Development. (2014) (<https://dblp.org/rec/books/daglib/p/AnackerDFGHHHKKKK0OOPPRRRRSSSTTWXZ14>)             | yearOfPublication (dblp:yearOfPublication) | 2014 (xsd:gYear) |
| ...                                                                                | ...                                        | ...              |

[Tool] True

[Tool] Stopped generation process

[User]
Feedback (status=done):
The output is correct and complete. The ASK query checks if there exists any publication authored by Nataliya Nikolaevna Kuchukova in 2016 using the correct properties and identifier. The answer 'False' is correct for the question phrased as 'Hasn't ... not published ...', since the ASK query returned True (i.e., she has published), so the negation is handled properly. No further refinement is needed.


PREFIX dblp: <https://dblp.org/rdf/schema#>
SELECT ?pub ?title WHERE {
  ?pub dblp:publishedIn "CoRR" .
  ?pub dblp:author ?author .
  FILTER ( ?author IN ( <https://dblp.org/pid/86/713> , <https://dblp.org/pid/151/7519> , <https://dblp.org/pid/30/3919> ) ) ?pub dblp:title ?title .
  FILTER ( CONTAINS( LCASE( ?title ) , "cloud" ) || CONTAINS( LCASE( ?title ) , "environment" ) )
}

There is no publication on Cloud environments (including variations with 'cloud' or 'environment' in the title) published by any Chothia in CoRR according to the dblp knowledge graph.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Mention the publication on Cloud environments that was published by Chothia in CoRR.

[Assistant]
Let's break down the question:

1. We are looking for a publication.
2. The publication should be about "Cloud environments".
3. The author should be "Chothia".
4. The publication venue should be "CoRR".

Step 1: Find the entity for "Chothia" in the dblp knowledge graph.

Step 2: Find the entity for "CoRR" as a publication venue.

Step 3: Identify how to filter for publications about "Cloud environments" (likely via title or keywords).

Step 4: Combine these constraints in a SPARQL query.

Let's start by searching for "Chothia" as an author.

[Tool]
Top 10 entity alternatives:
1. Cyrus Chothia, also known as Cyrus Chothia (<https://dblp.org/pid/86/713>)
2. Zaheer Chothia, also known as Zaheer Chothia (<https://dblp.org/pid/151/7519>)
3. Tom Chothia, also known as Tom Chothia (<https://dblp.org/pid/30/3919>)
4. Tom Chothia and Dominic Duggan: ...bility-Passing Processes. (2005) (<https://dblp.org/rec/journals/entcs/ChothiaD06>)
5. Tom Chothia et al.: Probabilisti...oint Information Leakage. (2013) (<https://dblp.org/rec/conf/csfw/ChothiaKNP13>)
6. Tom Chothia et al.: Type-Based Distributed Access Control. (2003) (<https://dblp.org/rec/conf/csfw/ChothiaDV03>)
7. Zaheer Chothia et al.: Grok the data center. (2014) (<https://dblp.org/rec/conf/apsys/ChothiaYR14>)
8. Tom Chothia and Dominic Duggan: ...bility passing processes. (2007) (<https://dblp.org/rec/journals/scp/ChothiaD07>)
9. Tom Chothia et al.: Phishing Attacks: Learning by Doing. (2018) (<https://dblp.org/rec/conf/uss/ChothiaPO18>)
10. Zaheer Chothia et al.: Explainin...in Modern Data Analytics. (2016) (<https://dblp.org/rec/journals/pvldb/ChothiaLMR16>)

[Assistant]
There are multiple authors with the surname "Chothia" in dblp, including Cyrus Chothia, Zaheer Chothia, and Tom Chothia. Since the question only specifies "Chothia", I will consider all three main author entities:

- Cyrus Chothia: <https://dblp.org/pid/86/713>
- Zaheer Chothia: <https://dblp.org/pid/151/7519>
- Tom Chothia: <https://dblp.org/pid/30/3919>

Next, I will search for the entity representing the publication venue "CoRR".

[Tool]
Top 10 entity alternatives:
1. Hugh Corr, also known as Hugh Corr (<https://dblp.org/pid/69/9897>)
2. Denis Corr, also known as Denis Corr (<https://dblp.org/pid/245/5331>)
3. Dörte Corr, also known as Dörte Corr (<https://dblp.org/pid/185/1873>)
4. Dan Corr, also known as Dan Corr (<https://dblp.org/pid/55/5616>)
5. Corrado Corradi, also known as Corrado Corradi (<https://dblp.org/pid/48/6659>)
6. Corrado Corradi-Dell'Acqua, also known as Corrado Corradi-Dell'Acqua (<https://dblp.org/pid/27/10396>)
7. Corry, also known as Corry (<https://dblp.org/pid/284/7480>)
8. D. Corr, also known as D. Corr (<https://dblp.org/pid/02/9947>)
9. Frank Corr, also known as Frank Corr (<https://dblp.org/pid/293/1407>)
10. Francis Corr, also known as Francis Corr (<https://dblp.org/pid/183/3862>)

[Assistant]
The search for "CoRR" returned only author names similar to "Corr" and not the publication venue "CoRR" (Computing Research Repository). This suggests that the venue might be represented differently in the dblp knowledge graph.

To proceed, I will search for properties related to publication venue or journal in dblp, so I can filter for publications in "CoRR".

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. stream title (dblp:streamTitle): A title of the stream., Stream
3. webpage (dblp:webpage): The URL of a web page about this item., Entity
4. title (dblp:title): The title of the publication., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. edited by (dblp:editedBy): The publication is edited by the creator., Publication, createdBy, Creator
7. publishers address (dblp:publishersAddress): The address of the publisher. (Remark: This is currently an inte...ill be removed once publishers are modelled as proper entities.), Publication
8. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
9. affiliation (dblp:affiliation): A (past or present) affiliation of the creator. (Remark: This pr...ring values until institutions are modelled as proper entities.), creatorNote, Creator
10. doi (dblp:doi): A Digital Object Identifier., Publication, identifier

[Assistant] The property "published in" (dblp:publishedIn) is likely used to indicate the journal or venue where a publication appeared. I will now search for objects of this property that match "CoRR" to find the correct entity for the CoRR venue.

[Tool]
No entity items found

No other items found

Top 10 literal alternatives:
1. CoRR
2. Correctness@SC
3. CORRECTNESS@SC
4. Correct Reasoning
5. Correct System Design
6. Designing Correct Circuits
7. Provably Correct Systems
8. Concurrency, Compositionality, and Correctness
9. Memory System Performance and Correctness
10. Correct Software in Web Applications and Web Services

[Assistant]
The property dblp:publishedIn can have the literal value "CoRR" for publications in that venue. So, to filter for publications in CoRR, I should use a FILTER on dblp:publishedIn = "CoRR".

Next, I need to find publications authored by any of the Chothia authors, published in CoRR, and related to "Cloud environments". The topic can likely be filtered by searching for "cloud" in the title.

I will now construct a SPARQL query that:
- Finds publications with dblp:publishedIn "CoRR"
- Has an author whose IRI is one of the three Chothia authors
- Has "cloud" (case-insensitive) in the title

I will include the publication IRI and optionally the title.

Let's build and execute this query.

[Tool] Got no rows and 2 columns

[Assistant]
The query returned no results, which means there are no publications in CoRR authored by any of the Chothia authors with "cloud" in the title.

To ensure completeness, I will try a broader search:
- Remove the "cloud" filter to see if any Chothia authors have published in CoRR at all.
- If there are results, I can then check their titles for relevance to "Cloud environments".

Let's try this next.

[Tool] Got no rows and 2 columns

[Assistant]
There are no publications in CoRR authored by any of the Chothia authors (Cyrus, Zaheer, or Tom Chothia) in the dblp knowledge graph, regardless of the topic.

Therefore, the answer is that there is no such publication matching all the criteria in the dblp knowledge graph.

[Tool] Stopped generation process

[User]
Feedback (status=refine):
The query is close, but could be improved for completeness and accuracy. The filter for 'cloud' in the title only matches the exact substring 'cloud', which may miss relevant publications about 'Cloud environments' if the phrase is split or worded differently (e.g., 'Cloud Computing Environments'). Consider using a broader filter, such as CONTAINS(LCASE(?title), "cloud") || CONTAINS(LCASE(?title), "environment"), or using a regex to match variations. Additionally, ensure that the author IRIs cover all possible Chothia authors in the dataset, as there may be more than the three listed. Consider querying for all authors with the name 'Chothia' to avoid missing relevant entries.

[Assistant]
Thank you for the feedback. To improve the query:

1. Instead of hardcoding three Chothia author IRIs, I will dynamically find all authors with the name "Chothia".
2. For the topic filter, I will broaden the search to include titles containing "cloud" or "environment" (case-insensitive), using a logical OR.

Step 1: Find all author IRIs with the name "Chothia".
Step 2: Use these IRIs in the main query.
Step 3: Broaden the title filter as suggested.

First, I will search for all authors whose name contains "Chothia".

[Tool] Got no rows and 1 columns

[Assistant]
It appears that the query for authors with the name "Chothia" returned no results. This could be due to the way author entities are structured in dblp, or perhaps the use of rdfs:label is not correct for author names.

To address this, I will check which properties are used for author names in dblp by listing properties for a known Chothia author entity, such as Tom Chothia (<https://dblp.org/pid/30/3919>).

[Tool]
Got 6 rows and 3 columns:
| subject                                      | property                                     | object                 |
| -------------------------------------------- | -------------------------------------------- | ---------------------- |
| Tom Chothia (<https://dblp.org/pid/30/3919>) | creatorname (dblp:creatorName)               | Tom Chothia            |
| Tom Chothia (<https://dblp.org/pid/30/3919>) | primaryCreatorName (dblp:primaryCreatorName) | Tom Chothia            |
| Tom Chothia (<https://dblp.org/pid/30/3919>) | rdf:type                                     | Creator (dblp:Creator) |
| Tom Chothia (<https://dblp.org/pid/30/3919>) | datacite:hasIdentifier                       | _:bn13636473           |
| Tom Chothia (<https://dblp.org/pid/30/3919>) | rdfs:label                                   | Tom Chothia            |
| Tom Chothia (<https://dblp.org/pid/30/3919>) | rdf:type                                     | Person (dblp:Person)   |

[Assistant]
The properties used for author names include:
- dblp:creatorName
- dblp:primaryCreatorName
- rdfs:label

Since rdfs:label is present, but my previous query returned no results, perhaps the type constraint was too restrictive. I will try searching for all entities with rdfs:label containing "Chothia" without specifying foaf:Person, and also try with dblp:creatorName.

Let's try with rdfs:label first.

[Tool]
SPARQL execution failed:
HTTPSConnectionPool(host='qlever.cs.uni-freiburg.de', port=443): Read timed out. (read timeout=30)

[Assistant]
It seems the previous query timed out, possibly due to the lack of type restriction and the large number of entities with rdfs:label. To make the query more efficient, I will restrict the search to entities of type dblp:Creator, which matches the type seen for Tom Chothia.

Let's try searching for all dblp:Creator entities with a label containing "Chothia".

[Tool]
Got 3 rows and 1 column:
| author                                           |
| ------------------------------------------------ |
| Zaheer Chothia (<https://dblp.org/pid/151/7519>) |
| Tom Chothia (<https://dblp.org/pid/30/3919>)     |
| Cyrus Chothia (<https://dblp.org/pid/86/713>)    |

[Assistant]
The search for all dblp:Creator entities with "Chothia" in their label returns the same three IRIs as before:

- Zaheer Chothia: <https://dblp.org/pid/151/7519>
- Tom Chothia: <https://dblp.org/pid/30/3919>
- Cyrus Chothia: <https://dblp.org/pid/86/713>

This confirms that these are the only "Chothia" authors in dblp.

Now, I will construct a query that:
- Finds publications in CoRR (dblp:publishedIn "CoRR")
- Has an author among these three
- Has a title containing either "cloud" or "environment" (case-insensitive, using a logical OR)

Let's build and execute this improved query.

[Tool] Got no rows and 2 columns

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly restricts publications to those published in CoRR, authored by Chothia (using relevant author IRIs), and with titles containing 'cloud' or 'environment' (case-insensitive). The query returns the IRIs and titles as required. Since the execution result is empty, the answer is correct and complete. No further refinement is needed.


PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dblp: <https://dblp.org/rdf/schema#>
ASK WHERE {
  <https://dblp.org/rec/journals/jetc/WangOWHOO10> dblp:yearOfPublication ?year .
  FILTER ( ?year = "2010" ^^ xsd:gYear )
}

Yes, 'Design considerations of sub-mW indoor light energy harvesting for wireless sensor systems' was published in the year 2010.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Wasn't 'Design considerations of sub-mW indoor light energy harvesting for wireless sensor systems' published in the year 2010?

[Assistant]
Let's break down the question:

1. The user is asking whether the publication "Design considerations of sub-mW indoor light energy harvesting for wireless sensor systems" was published in 2010.
2. This is a yes/no (True/False) question, so the final SPARQL query should be an ASK query.
3. First, I need to find the exact entity for the publication in the DBLP knowledge graph.
4. Then, I need to check its publication year and see if it matches 2010.

Let's start by searching for the publication entity in DBLP.

[Tool]
Top 10 entity alternatives:
1. Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>)
2. Jorge Juan Robles: Consideration...Wireless Sensor Networks. (2011) (<https://dblp.org/rec/conf/ifip6-6/Robles11>)
3. Vijay Raghunathan et al.: Design...ireless embedded systems. (2005) (<https://dblp.org/rec/conf/ipsn/RaghunathanKHFS05>)
4. Jesús Gómez-Vilardebó: Competiti...ss communication systems. (2014) (<https://dblp.org/rec/conf/globalsip/Gomez-Vilardebo14>)
5. Lydia Schott et al.: Validation ...Wireless Sensor Networks. (2019) (<https://dblp.org/rec/conf/IEEEssd/SchottSD19>)
6. James M. Gilbert and Farooq Balo...wireless sensor networks. (2008) (<https://dblp.org/rec/journals/ijautcomp/GilbertB08>)
7. Usman Asghar et al.: Development...gn for Energy Harvesting. (2018) (<https://dblp.org/rec/journals/corr/abs-1802-05755>)
8. Pierpaolo Loreti et al.: The Des...or Tracking Pink Iguanas. (2019) (<https://dblp.org/rec/journals/sensors/LoretiCLBGN19>)
9. Alessandro Vinco et al.: AA-Batt...less Sensor Applications. (2014) (<https://dblp.org/rec/conf/applepies/VincoSBW14>)
10. Yen Kheng Tan and Sanjib Kumar P...of Wireless Sensor Nodes. (2011) (<https://dblp.org/rec/journals/tie/TanP11>)

[Assistant]
The top search result matches the title exactly and is from 2010:
Wensi Wang et al.: Design considerations of sub-mW indoor light energy harvesting for wireless sensor systems. (2010)
Entity IRI: <https://dblp.org/rec/journals/jetc/WangOWHOO10>

Now, to answer the question, I need to check if this publication has the year 2010. I will write an ASK query to check if the publication year is 2010 for this entity.

[Tool] False

[Tool]
Got 41 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object                                                                                |
| ---------------------------------------------------------------------------------------------------------------------- | ------------------------------------------ | ---------------------------------------------------------------------------------------------------- |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | hasSignature (dblp:hasSignature)           | _:bn28927186                                                                                |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | createdBy (dblp:createdBy)                 | Brendan O'Flynn (<https://dblp.org/pid/51/6418>)                                                     |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | authoredBy (dblp:authoredBy)               | Brendan O'Flynn (<https://dblp.org/pid/51/6418>)                                                     |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | publishedInStream (dblp:publishedInStream) | ACM Journal on Emerging Technologies in Computing Systems (<https://dblp.org/streams/journals/jetc>) |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | documentPage (dblp:documentPage)           | <https://doi.org/10.1145/1773814.1773817>                                                            |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | bibtexType (dblp:bibtexType)               | bibtex:Article                                                                                |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | numberOfCreators (dblp:numberOfCreators)   | 6 (xsd:int)                                                                                |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | title (dblp:title)                         | Design considerations of sub-mW ...ing for wireless sensor systems.                                  |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | yearOfPublication (dblp:yearOfPublication) | 2010 (xsd:gYear)                                                                                |
| Wensi Wang et al.: Design consid... wireless sensor systems. (2010) (<https://dblp.org/rec/journals/jetc/WangOWHOO10>) | listedOnTocPage (dblp:listedOnTocPage)     | <https://dblp.org/db/journals/jetc/jetc6>                                                            |
| ...                                                                                | ...                                        | ...                                                                                |

[Tool] True

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query is correct for the user's question. It uses an ASK query to check if the publication with the given IRI was published in 2010, using the correct property (dblp:yearOfPublication) and datatype (xsd:gYear). The answer matches the query result. No further refinement is needed.


PREFIX dblp: <https://dblp.org/rdf/schema#>
SELECT ?year WHERE {
  <https://dblp.org/rec/conf/cvpr/GammeterGBQG10> dblp:yearOfPublication ?year
}

The paper 'Server-side object recognition and client-side object tracking for mobile augmented reality' was published in 2010.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] What year was 'Server-side object recognition and client-side object tracking for mobile augmented reality' published?

[Assistant]
Let's break down the question:

1. The user wants to know the publication year of the paper titled "Server-side object recognition and client-side object tracking for mobile augmented reality".
2. First, I need to find the entity for this paper in the DBLP knowledge graph.
3. Then, I need to find the property that indicates the publication year.
4. Finally, I will construct a SPARQL query to retrieve the year.

Let's start by searching for the entity with the given title.

[Tool]
Top 10 entity alternatives:
1. Stephan Gammeter et al.: Server-...mobile augmented reality. (2010) (<https://dblp.org/rec/conf/cvpr/GammeterGBQG10>)
2. Yassine Lehiani et al.: Object i...mobile augmented reality. (2015) (<https://dblp.org/rec/conf/icsipa/LehianiPMG15>)
3. Wolfgang Hürst and Joris Dekker:...mobile augmented reality. (2013) (<https://dblp.org/rec/conf/mm/HurstD13>)
4. Kittipat Apicharttrisorn et al.:...mobile augmented reality. (2019) (<https://dblp.org/rec/conf/sensys/Apicharttrisorn19>)
5. Rodrigo L. S. Silva et al.: Obje...ugmented Reality Systems. (2005) (<https://dblp.org/rec/conf/iv/SilvaRGC05>)
6. Jaewon Ha et al.: Scalable recog...mobile augmented reality. (2010) (<https://dblp.org/rec/conf/vrcai/HaCY10>)
7. Pengfei Han and Gang Zhao: CAD-b...mobile augmented reality. (2015) (<https://dblp.org/rec/journals/cg/HanZ15>)
8. Nohyoung Park et al.: Barcode-As...Mobile Augmented Reality. (2011) (<https://dblp.org/rec/conf/isuvr/ParkLW11>)
9. Oliver Beren Kaul et al.: Mobile... with Visual Impairments. (2021) (<https://dblp.org/rec/conf/chi/KaulBR21>)
10. Ulrich Neumann and Jun Park: Ext...ng for augmented reality. (1998) (<https://dblp.org/rec/conf/vr/NeumannP98>)

[Assistant]
The top search result matches the full title and is from 2010:
Stephan Gammeter et al.: Server-side object recognition and client-side object tracking for mobile augmented reality. (2010)
Entity IRI: https://dblp.org/rec/conf/cvpr/GammeterGBQG10

Next, I need to find the property that indicates the publication year for this entity.

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
3. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
4. title (dblp:title): The title of the publication., Publication
5. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
6. published as part of (dblp:publishedAsPartOf): The publication has been published as a part of the other publication., Publication
7. created by (dblp:createdBy): The publication is created by the creator., Publication, Creator
8. listed on toc page (dblp:listedOnTocPage): The url of the dblp table of contents page listing this publication., Publication
9. doi (dblp:doi): A Digital Object Identifier., Publication, identifier
10. has signature (dblp:hasSignature): A signature that links this publication to an creator., Publication, Signature

No other items found

[Assistant]
There are two relevant properties for the year:
- dblp:yearOfEvent (year the conference/workshop contribution was presented)
- dblp:yearOfPublication (year the publication's issue or volume was published)

Since the user asked for the publication year, I will use dblp:yearOfPublication. If that is not present, I can also check dblp:yearOfEvent.

Now, I will write a SPARQL query to retrieve the year of publication for the identified entity.

[Tool]
Got 1 row and 1 column:
| year             |
| ---------------- |
| 2010 (xsd:gYear) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the publication year for the specified paper using its IRI and the appropriate property (dblp:yearOfPublication). The answer matches the execution result. No further refinement is needed.


PREFIX dblp: <https://dblp.org/rdf/schema#>
SELECT DISTINCT ?author WHERE {
  ?paper dblp:publishedIn <https://dblp.org/streams/conf/aspdac> ; dblp:yearOfEvent 1997 ; dblp:title ?title ; dblp:authoredBy ?author .
  FILTER ( REGEX( LCASE( STR( ?title ) ) , "decision diagram" , "i" ) )
}

The improved query using REGEX does find papers with "decision diagram" in the title, but none are from ASP-DAC 1997 or even from 1997 in general. The only 1997 result is a book chapter: "Transformation techniques for decision diagrams in computer-aided design" by Thorsten Theobald, which is not from ASP-DAC.

This confirms that, even with a more flexible title filter, there are no papers about decision diagrams published at ASP-DAC 1997 in the dblp knowledge graph.

Here is the refined SPARQL query for completeness, using the REGEX filter as suggested:

```sparql
SELECT DISTINCT ?author WHERE {
  ?paper dblp:publishedIn <https://dblp.org/streams/conf/aspdac> ;
         dblp:yearOfEvent 1997 ;
         dblp:title ?title ;
         dblp:authoredBy ?author .
  FILTER(REGEX(LCASE(STR(?title)), "decision diagram", "i"))
}
```

And the answer:

There are no authors in the dblp knowledge graph who published papers about "Decision diagrams" at ASP-DAC 1997, even when using a more flexible REGEX filter for the title.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] In 1997 in ASP-DAC, who are the authors that published papers about Decision diagrams?

[Assistant]
Let's break down the question:

1. We are looking for authors.
2. The papers must be published in 1997.
3. The venue is ASP-DAC (Asia and South Pacific Design Automation Conference).
4. The papers must be about "Decision diagrams".

Step 1: Find the entity for ASP-DAC in the dblp knowledge graph.

I'll search for "ASP-DAC" to find its entity.

[Tool]
Top 10 entity alternatives:
1. Hidetoshi Onodera: 2016 ASP-DAC. (2016) (<https://dblp.org/rec/journals/dt/Onodera16>)
2. Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>)
3. Atsushi Takahara: ASP-DAC 2015 k... II programmable network. (2015) (<https://dblp.org/rec/conf/aspdac/Takahara15>)
4. John Rogers: ASP-DAC 2017 keynot...onics for the human body. (2017) (<https://dblp.org/rec/conf/aspdac/Rogers17>)
5. Youngsoo Shin: Recap of the 23rd...ion Conference (ASP-DAC). (2018) (<https://dblp.org/rec/journals/dt/Shin18>)
6. Hiroto Yasuura: ASP-DAC 2017 key...nd digital system design. (2017) (<https://dblp.org/rec/conf/aspdac/Yasuura17>)
7. Proceedings of ASP-DAC 2000, Asi...nce 2000, Yokohama, Japan (2000) (<https://dblp.org/rec/conf/aspdac/2000>)
8. 19th Asia and South Pacific Desi...pore, January 20-23, 2014 (2014) (<https://dblp.org/rec/conf/aspdac/2014>)
9. 27th Asia and South Pacific Desi...iwan, January 17-20, 2022 (2022) (<https://dblp.org/rec/conf/aspdac/2022>)
10. 25th Asia and South Pacific Desi...hina, January 13-16, 2020 (2020) (<https://dblp.org/rec/conf/aspdac/2020>)

[Assistant]
The relevant entity for ASP-DAC as a conference series is:
- Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>)

Step 2: Find papers published at ASP-DAC in 1997.

I'll check if there is a specific entity for the 1997 edition, or if papers are linked to the series entity with a year property. I'll search for "ASP-DAC 1997" to see if there is a dedicated entity.

[Tool]
Top 10 entity alternatives:
1. Dedication. (1997) (<https://dblp.org/rec/journals/entcs/X97>)
2. Erratum. (1997) (<https://dblp.org/rec/journals/aiedam/X97>)
3. Erratum. (1997) (<https://dblp.org/rec/journals/ida/X97>)
4. Erratum. (1997) (<https://dblp.org/rec/journals/mima/X97b>)
5. Dissertations. (1997) (<https://dblp.org/rec/journals/sigchi/X97a>)
6. Editorial. (1997) (<https://dblp.org/rec/journals/jitech/X97>)
7. Editorial. (1997) (<https://dblp.org/rec/journals/isj/X97a>)
8. Editorial. (1997) (<https://dblp.org/rec/journals/isj/X97>)
9. Announcement. (1997) (<https://dblp.org/rec/journals/alr/X97>)
10. Announcement. (1997) (<https://dblp.org/rec/journals/alr/X97b>)

[Assistant]
It appears there is no direct entity labeled "ASP-DAC 1997." However, in dblp, individual conference editions are often represented by their proceedings, such as "Proceedings of ASP-DAC 1997" or similar.

Step 3: Search for the proceedings of ASP-DAC 1997.

I'll search for "Proceedings of ASP-DAC 1997" to find the entity representing the 1997 edition.

[Tool]
Top 10 entity alternatives:
1. James E. Brittain: The First Issue of the PROCEEDINGS. (1997) (<https://dblp.org/rec/journals/pieee/Brittain97>)
2. Proceedings of the IEEE (<https://dblp.org/streams/journals/pieee>)
3. List of Referees. (1997) (<https://dblp.org/rec/journals/siammax/X97>)
4. Problems of Philosophy. (1997) (<https://dblp.org/rec/journals/synthese/X97>)
5. Problems of Philosophy. (1997) (<https://dblp.org/rec/journals/synthese/X97a>)
6. Tak H. Ning: On Shockley's 1952 ...eedings Of The IRE Paper. (1997) (<https://dblp.org/rec/journals/pieee/Ning97>)
7. Dan Lundh et al.: Biocomputing a...on: Proceedings of BCEC97 (1997) (<https://dblp.org/rec/conf/bcec/1997>)
8. Proceedings of the VLDB Endowment (<https://dblp.org/streams/journals/pvldb>)
9. Carrie Liddy: Commercialization of cryptography. (1997) (<https://dblp.org/rec/journals/imcs/Liddy97>)
10. Josh Elliott: Summary of 1400-1499. (1997) (<https://dblp.org/rec/journals/rfc/rfc1499>)

[Assistant]
The search did not return a direct match for "Proceedings of ASP-DAC 1997." However, since we have the series entity (<https://dblp.org/streams/conf/aspdac>), papers from 1997 should be linked to this entity with a year property.

Step 4: Identify how papers are linked to the conference series and year.

I'll list some triples for the ASP-DAC series entity to see how papers are connected, focusing on properties that might link to individual papers or proceedings.

[Tool]
Got 11 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                     | object                                                        |
| ------------------------------------------------------------------------------------------------------ | -------------------------------------------- | ------------------------------------------------------------- |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | wikidata (dblp:wikidata)                     | wd:Q4806492                                                   |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | webpage (dblp:webpage)                       | <http://www.aspdac.com/>                                      |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | streamTitle (dblp:streamTitle)               | Asia and South Pacific Design Automation Conference (ASP-DAC) |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | indexPage (dblp:indexPage)                   | <https://dblp.org/db/conf/aspdac/index>                       |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | primaryStreamTitle (dblp:primaryStreamTitle) | Asia and South Pacific Design Automation Conference (ASP-DAC) |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | rdf:type                                     | Conference (dblp:Conference)                                  |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | datacite:hasIdentifier                       | _:bn40381007                                                  |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | rdfs:label                                   | Asia and South Pacific Design Automation Conference (ASP-DAC) |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | owl:sameAs                                   | wd:Q4806492                                                   |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | rdf:type                                     | Stream (dblp:Stream)                                          |
| ...                                                                                | ...                                          | ...                                                           |

[Assistant]
The ASP-DAC series entity does not directly link to individual years or papers in the triples shown. However, dblp typically links papers to their venue and year.

Step 5: Find the property that links a paper to its venue/conference.

I'll search for properties related to "venue" or "conference" to see how papers are associated with ASP-DAC.

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. stream title (dblp:streamTitle): A title of the stream., Stream
3. webpage (dblp:webpage): The URL of a web page about this item., Entity
4. title (dblp:title): The title of the publication., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. edited by (dblp:editedBy): The publication is edited by the creator., Publication, createdBy, Creator
7. publishers address (dblp:publishersAddress): The address of the publisher. (Remark: This is currently an inte...ill be removed once publishers are modelled as proper entities.), Publication
8. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
9. affiliation (dblp:affiliation): A (past or present) affiliation of the creator. (Remark: This pr...ring values until institutions are modelled as proper entities.), creatorNote, Creator
10. doi (dblp:doi): A Digital Object Identifier., Publication, identifier

[Assistant]
The property "published in" (dblp:publishedIn) is likely used to link papers to their conference series, such as ASP-DAC.

Step 6: Find papers published in ASP-DAC in 1997.

I'll construct a query to find papers where:
- dblp:publishedIn is ASP-DAC (<https://dblp.org/streams/conf/aspdac>)
- dblp:year is 1997

I'll check the property for year to confirm its IRI.

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
3. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
4. month of publication (dblp:monthOfPublication): The month the publication has been published., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. issn (dblp:issn): An International Standard Serial Number., identifier, Stream
7. title (dblp:title): The title of the publication., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
10. published as part of (dblp:publishedAsPartOf): The publication has been published as a part of the other publication., Publication

[Assistant]
The property "year of event" (dblp:yearOfEvent) is likely used for the year a conference paper was presented.

Step 7: Find papers about "Decision diagrams".

To filter for papers about "Decision diagrams", I'll need to check if papers have a subject, keyword, or title property that can be searched for this phrase. I'll search for properties related to "subject" or "keyword".

[Tool]
Top 10 property alternatives:
1. webpage (dblp:webpage): The URL of a web page about this item., Entity
2. stream title (dblp:streamTitle): A title of the stream., Stream
3. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
4. wikidata (dblp:wikidata): A wikidata item., identifier, Entity
5. title (dblp:title): The title of the publication., Publication
6. listed on toc page (dblp:listedOnTocPage): The url of the dblp table of contents page listing this publication., Publication
7. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
8. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
9. former stream title (dblp:formerStreamTitle): A former title of the stream., streamTitle, Stream
10. doi (dblp:doi): A Digital Object Identifier., Publication, identifier

[Assistant]
There is no explicit "keyword" property, but the "title" property (dblp:title) can be used to search for "Decision diagrams" in the paper titles.

Step 8: Find authors of ASP-DAC 1997 papers with "Decision diagrams" in the title.

I'll construct a SPARQL query to:
- Select papers with dblp:publishedIn ASP-DAC
- dblp:yearOfEvent 1997
- dblp:title containing "Decision diagram"
- Get their authors

Let's write and execute this query.

[Tool] Got no rows and 1 columns

[Assistant]
The query returned no results, which means there are no papers at ASP-DAC 1997 with "Decision diagram" in the title, or the data might be structured differently (e.g., the year or venue linkage).

Step 9: Check if the year property might be "dblp:yearOfPublication" instead of "dblp:yearOfEvent".

I'll modify the query to use "dblp:yearOfPublication" and try again.

[Tool] Got no rows and 1 columns

[Assistant]
Still no results. It's possible that the linkage between papers and the conference edition is not through the series entity, or the year property is not set as expected.

Step 10: Search for any papers in 1997 with "Decision diagram" in the title, regardless of venue, to check if such papers exist in the dataset.

I'll search for papers from 1997 with "Decision diagram" in the title.

[Tool] Got no rows and 2 columns

[Assistant]
There are no papers in the dblp knowledge graph from 1997 with "Decision diagram" in the title. This suggests that either such papers do not exist in the dataset for that year, or the relevant metadata is not present or structured differently.

Given these results, I am unable to find any authors who published papers about "Decision diagrams" at ASP-DAC 1997 in the dblp knowledge graph.

If you have a broader or different keyword, or want to check other years or venues, please let me know!

[Tool] Stopped generation process

[User]
Feedback (status=refine):
The SPARQL query is mostly correct, but it could be improved for completeness. The current FILTER only matches titles containing the exact phrase 'decision diagram', which may miss relevant papers with variations such as 'decision diagrams' (plural), or titles where the words are not adjacent (e.g., 'diagram-based decision methods'). Consider using a more flexible FILTER, such as regex with case-insensitivity, to capture more possible relevant papers. For example: FILTER(REGEX(LCASE(STR(?title)), "decision diagram", "i")). Also, ensure that the conference IRI <https://dblp.org/streams/conf/aspdac> is correct for ASP-DAC 1997, as sometimes specific event IRIs are used for individual years.

[Assistant]
Thank you for the feedback. Here’s how I’ll refine the approach:

1. The current FILTER only matches the exact phrase "decision diagram". To capture more variations (e.g., plural, non-adjacent words), I’ll use a REGEX filter with case-insensitivity.
2. The IRI <https://dblp.org/streams/conf/aspdac> refers to the conference series, but dblp sometimes uses specific IRIs for each year’s event. I should search for the specific IRI for ASP-DAC 1997 and use that if available.

Step 1: Search for the specific entity for ASP-DAC 1997.

I'll search for "ASP-DAC 1997" again, but this time I'll also try "aspdac/1997" since dblp often uses this pattern for conference editions.

[Tool] No entity items found

[Assistant] No direct entity was found for "aspdac/1997". Sometimes dblp uses proceedings entities for specific years. I'll try searching for "ASP-DAC" and "1997" together to see if any proceedings or event entities are present for that year.

[Tool]
Top 10 entity alternatives:
1. Harold Joseph Highland: IFIP/SEC'97 conference proceedings. (1997) (<https://dblp.org/rec/journals/compsec/Highland97b>)
2. Mariam Kamkar: Preface (with proceedings front matter). (1997) (<https://dblp.org/rec/conf/aadebug/Kamkar97>)
3. Proceedings (<https://dblp.org/streams/series/proceedings>)
4. Dedication. (1997) (<https://dblp.org/rec/journals/entcs/X97>)
5. Proceedings. (2010) (<https://dblp.org/rec/conf/hicss/X10f>)
6. Erratum. (1997) (<https://dblp.org/rec/journals/aiedam/X97>)
7. Erratum. (1997) (<https://dblp.org/rec/journals/ida/X97>)
8. Erratum. (1997) (<https://dblp.org/rec/journals/mima/X97b>)
9. Dissertations. (1997) (<https://dblp.org/rec/journals/sigchi/X97a>)
10. Editorial. (1997) (<https://dblp.org/rec/journals/jitech/X97>)

[Assistant]
No direct proceedings entity for ASP-DAC 1997 was found. Given this, I will proceed with the conference series IRI (<https://dblp.org/streams/conf/aspdac>) and use a REGEX filter for the title to capture more variations of "decision diagram".

Step 2: Update the query to use REGEX for flexible matching.

I'll use FILTER(REGEX(LCASE(STR(?title)), "decision diagram", "i")) to match any case-insensitive occurrence, including plurals and partial matches.

Step 3: Return author IRIs and optionally their labels.

Here is the improved SPARQL query.

[Tool] Got no rows and 2 columns

[Tool] Got no rows and 2 columns

[Tool] Got no rows and 2 columns

[Tool]
Got 10 rows and 2 columns:
| paper                                                                                | title                                                               |
| ----------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------- |
| James Bailey and Elsa Loekito: M...Binary Decision Diagrams. (2013) (<https://dblp.org/rec/books/crc/dong13/BaileyL13>) | Mining Emerging Patterns Using Z...ressed Binary Decision Diagrams. |
| Beate Bollig et al.: Binary Decision Diagrams. (2010) (<https://dblp.org/rec/books/cu/10/BolligSSWCH10>)                | Binary Decision Diagrams.                                           |
| Rolf Drechsler and Bernd Becker:...heory and Implementation. (1998) (<https://dblp.org/rec/books/daglib/0029044>)       | Binary Decision Diagrams - Theory and Implementation.               |
| Thorsten Theobald: Transformatio...in computer-aided design. (1997) (<https://dblp.org/rec/books/daglib/0096017>)       | Transformation techniques for de...agrams in computer-aided design. |
| Ingo Wegener: Branching Programs... Binary Decision Diagrams (2000) (<https://dblp.org/rec/books/siam/Wegener00>)       | Branching Programs and Binary Decision Diagrams                     |
| Tom van Dijk and Jaco van de Pol...i-core Decision Diagrams. (2018) (<https://dblp.org/rec/books/sp/18/DijkP18>)        | Multi-core Decision Diagrams.                                       |
| Bernd Becker: Synthesis for Test...Binary Decision Diagrams. (1992) (<https://dblp.org/rec/books/sp/92/000192>)         | Synthesis for Testability: Binary Decision Diagrams.                |
| Raimund Ubar et al.: Structural ...- Theory and Applications (2024) (<https://dblp.org/rec/books/sp/UbarRJJ24>)         | Structural Decision Diagrams in ...l Test - Theory and Applications |
| Quentin Cappart et al.: Improvin...p Reinforcement Learning. (2019) (<https://dblp.org/rec/conf/aaai/CappartGBR19>)     | Improving Optimization Bounds Us...eet Deep Reinforcement Learning. |
| Kenil C. K. Cheng and Roland H. ...rained Decision Diagrams. (2005) (<https://dblp.org/rec/conf/aaai/ChengY05>)         | Constrained Decision Diagrams.                                      |

[Assistant]
The improved query using REGEX does find papers with "decision diagram" in the title, but none are from ASP-DAC 1997 or even from 1997 in general. The only 1997 result is a book chapter: "Transformation techniques for decision diagrams in computer-aided design" by Thorsten Theobald, which is not from ASP-DAC.

This confirms that, even with a more flexible title filter, there are no papers about decision diagrams published at ASP-DAC 1997 in the dblp knowledge graph.

Here is the refined SPARQL query for completeness, using the REGEX filter as suggested:

```sparql
SELECT DISTINCT ?author WHERE {
  ?paper dblp:publishedIn <https://dblp.org/streams/conf/aspdac> ;
         dblp:yearOfEvent 1997 ;
         dblp:title ?title ;
         dblp:authoredBy ?author .
  FILTER(REGEX(LCASE(STR(?title)), "decision diagram", "i"))
}
```

And the answer:

There are no authors in the dblp knowledge graph who published papers about "Decision diagrams" at ASP-DAC 1997, even when using a more flexible REGEX filter for the title.

[User]
Feedback (status=done):
The SPARQL query is correct and follows all the required rules. It searches for papers published at ASP-DAC in 1997 with titles containing 'decision diagram' (case-insensitive), and retrieves the authors. The answer correctly states that there are no such papers or authors in the dblp knowledge graph. No further refinement is needed.


PREFIX dblp: <https://dblp.org/rdf/schema#>
ASK WHERE {
  ?paper dblp:authoredBy <https://dblp.org/pid/80/2691> .
  ?paper dblp:title ?title .
  FILTER ( str( ?title ) = "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times." )
}

Yes, Martin Skutella has published the paper 'An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times.'

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Has Martin Skutella not not published the paper 'An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times'?

[Assistant]
Let's break down the question:

- The question is a double negative: "Has Martin Skutella not not published the paper ...?" This is logically equivalent to asking: "Has Martin Skutella published the paper ...?"

So, the task is to check if Martin Skutella is an author of the paper titled "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times".

Step 1: Find the entity for Martin Skutella in DBLP.
Step 2: Find the entity for the paper with the given title.
Step 3: Check if Martin Skutella is an author of that paper.

Let's start by searching for "Martin Skutella" in DBLP.

[Tool]
Top 10 entity alternatives:
1. Martin Skutella, also known as Martin Skutella (<https://dblp.org/pid/80/2691>)
2. Christos Kaklamanis and Martin Skutella: Preface. (2011) (<https://dblp.org/rec/journals/tcs/KaklamanisS11>)
3. Quentin Louveaux and Martin Skutella: Preface. (2018) (<https://dblp.org/rec/journals/mp/LouveauxS18>)
4. Martin Skutella: Convex Quadratic Programming in Scheduling. (2015) (<https://dblp.org/rec/books/sp/15/Skutella15>)
5. Martín Martín-González, also known as Martín Martín-González (<https://dblp.org/pid/174/6870>)
6. Martin Martinelli, also known as Martin Martinelli (<https://dblp.org/pid/308/4205>)
7. Martin Martinez, also known as Martin Martinez (<https://dblp.org/pid/144/4889>)
8. Martin Martinez-Salvador, also known as Martin Martinez-Salvador (<https://dblp.org/pid/216/0725>)
9. Martin, also known as Martin (<https://dblp.org/pid/232/3822>)
10. Martin Vetterli, also known as Martin Vetterli (<https://dblp.org/pid/v/MVetterli>)

[Assistant]
The top result for "Martin Skutella" is the person entity: <https://dblp.org/pid/80/2691>.

Next, I will search for the paper titled "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times" in DBLP to find its entity.

[Tool]
Top 10 entity alternatives:
1. Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>)
2. Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2007) (<https://dblp.org/rec/journals/algorithmica/HallLS07>)
3. Ekkehard Köhler and Martin Skute...-Dependent Transit Times. (2005) (<https://dblp.org/rec/journals/siamjo/KohlerS05>)
4. Ekkehard Köhler and Martin Skute...-dependent transit times. (2002) (<https://dblp.org/rec/conf/soda/KohlerS02>)
5. Lisa Fleischer: Faster Algorithm... with Zero Transit Times. (1998) (<https://dblp.org/rec/conf/soda/Fleischer98>)
6. Anya Chaturvedi et al.: Improved...s With Arbitrary Demands. (2024) (<https://dblp.org/rec/journals/ton/ChaturvediCLRRSW24>)
7. Anya Chaturvedi et al.: Improved...s with Arbitrary Demands. (2022) (<https://dblp.org/rec/journals/sigmetrics/ChaturvediCRRSW22>)
8. Nadine Baumann and Ekkehard Köhl...-Dependent Transit Times. (2004) (<https://dblp.org/rec/conf/mfcs/BaumannK04>)
9. Daniel Dressler and Martin Skute...Aggregate Arc Capacities. (2010) (<https://dblp.org/rec/conf/waoa/DresslerS10>)
10. Nadine Baumann and Ekkehard Köhl...-dependent transit times. (2007) (<https://dblp.org/rec/journals/dam/BaumannK07>)

[Assistant]
There are several papers with similar titles, but the two most relevant matches for the exact title "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times" are:

1. Alexander Hall et al. (2003) - <https://dblp.org/rec/conf/random/HallLS03>
2. Alexander Hall et al. (2007) - <https://dblp.org/rec/journals/algorithmica/HallLS07>

Both have Alexander Hall as the first author, and "et al." suggests multiple authors. To answer the question, I need to check if Martin Skutella (<https://dblp.org/pid/80/2691>) is an author of either of these papers.

I will first check the authors of the 2003 conference paper.

[Tool]
Got 34 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object                                                                            |
| ----------------------------------------------------------------------------------------------------------------- | ------------------------------------------ | --------------------------------------------------------------------------------- |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | hasSignature (dblp:hasSignature)           | _:bn45636610                                                                      |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | createdBy (dblp:createdBy)                 | Martin Skutella (<https://dblp.org/pid/80/2691>)                                  |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | authoredBy (dblp:authoredBy)               | Martin Skutella (<https://dblp.org/pid/80/2691>)                                  |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | publishedInStream (dblp:publishedInStream) | Lecture Notes in Computer Science (LNCS) (<https://dblp.org/streams/series/lncs>) |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | documentPage (dblp:documentPage)           | <https://doi.org/10.1007/978-3-540-45198-3_7>                                     |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | bibtexType (dblp:bibtexType)               | bibtex:Inproceedings                                                              |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | numberOfCreators (dblp:numberOfCreators)   | 3 (xsd:int)                                                                       |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | title (dblp:title)                         | An FPTAS for Quickest Multicommo... Inflow-Dependent Transit Times.               |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | yearOfPublication (dblp:yearOfPublication) | 2003 (xsd:gYear)                                                                  |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | listedOnTocPage (dblp:listedOnTocPage)     | <https://dblp.org/db/conf/random/random2003>                                      |
| ...                                                                                | ...                                        | ...                                                                               |

[Assistant]
The 2003 conference paper "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times" (<https://dblp.org/rec/conf/random/HallLS03>) lists Martin Skutella (<https://dblp.org/pid/80/2691>) as an author.

Since the question is logically equivalent to "Has Martin Skutella published the paper ...?", the answer is "Yes".

To be thorough, I will write an ASK query that checks if Martin Skutella is an author of a paper with the exact title "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times".

[Tool] True

[Tool] Stopped generation process

[User]
Feedback (status=done):
The output is correct and complete. The user's question, after resolving the double negation, asks whether Martin Skutella has published the specified paper. The SPARQL query is an ASK query that checks if there exists a paper authored by Martin Skutella with the exact given title. The answer 'Yes' matches the execution result (True). The query also follows the guidelines for ASK queries. No further refinement is needed.


PREFIX dblp: <https://dblp.org/rdf/schema#>
ASK WHERE {
  ?pub dblp:authoredBy <https://dblp.org/pid/96/277> .
  ?pub dblp:yearOfPublication 2001 .
}

True. Barbara Von Eckardt did not publish in 2001.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Didn't Eckardt, Barbara Von not publish in 2001?

[Assistant]
Let's break down the question:

- The user is asking whether Barbara Von Eckardt did NOT publish in 2001.
- This is a negative question, so the answer should be "True" if she did not publish in 2001, and "False" if she did.
- We need to find the correct entity for "Eckardt, Barbara Von" in DBLP.
- Then, we need to check if there are any publications by her in 2001.

First, I will search for the entity corresponding to "Eckardt, Barbara Von" in the DBLP knowledge graph.

[Tool]
Top 10 entity alternatives:
1. Barbara Von Eckardt, also known as Barbara Von Eckardt (<https://dblp.org/pid/96/277>)
2. Barbara Von Eckardt: Multidiscip...ty and cognitive science. (2001) (<https://dblp.org/rec/journals/cogsci/Eckardt01>)
3. Barbara von Wahlde, also known as Barbara von Wahlde (<https://dblp.org/pid/25/3470>)
4. Barbara von Ungern-Sternberg, also known as Barbara von Ungern-Sternberg (<https://dblp.org/pid/212/3070>)
5. Barbara von Rechbach, also known as Barbara von Rechbach (<https://dblp.org/pid/210/6423>)
6. Barbara von Hindenburg, also known as Barbara von Hindenburg (<https://dblp.org/pid/318/5947>)
7. Barbara von Halle, also known as Barbara von Halle (<https://dblp.org/pid/19/2063>)
8. Barbara Kirchberg-Lennartz: Prüfbarkeit von EDV-Systemen. (1991) (<https://dblp.org/rec/phd/dnb/Kirchberg-Lennartz91>)
9. Barbara Janusz: Modellbasierte R...on von Geschäftsprozessen (1998) (<https://dblp.org/rec/phd/basesearch/Janusz98>)
10. Barbara Rapp et al.: Ontologieba...ennutzung von Rohstoffen. (2010) (<https://dblp.org/rec/journals/hmd/RappBSG10>)

[Assistant]
The top result for "Eckardt, Barbara Von" is "Barbara Von Eckardt" with the IRI <https://dblp.org/pid/96/277>. This is likely the correct author entity.

Next, I need to check if Barbara Von Eckardt has any publications in 2001. If she does, the answer is "False" (she did publish in 2001); if not, the answer is "True" (she did not publish in 2001).

To do this, I will look for publications authored by <https://dblp.org/pid/96/277> with the publication year 2001. Since the question is negative, I will construct an ASK query that returns true if there are NO such publications.

First, I need to confirm the property for "author of" or "published by" and "year" in the DBLP schema.

[Tool]
Top 10 property alternatives:
1. creator name (dblp:creatorName): The full name of the creator., Creator

No other items found

[Tool]
Top 10 property alternatives:
1. creator name (dblp:creatorName): The full name of the creator., Creator
2. primary creator name (dblp:primaryCreatorName): The primary full name of the creator., creatorname, Creator

No other items found

[Tool]
Got 6 rows and 3 columns:
| subject                                             | property                                     | object                 |
| --------------------------------------------------- | -------------------------------------------- | ---------------------- |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | creatorname (dblp:creatorName)               | Barbara Von Eckardt    |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | primaryCreatorName (dblp:primaryCreatorName) | Barbara Von Eckardt    |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | rdf:type                                     | Creator (dblp:Creator) |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | datacite:hasIdentifier                       | _:bn14270292           |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | rdfs:label                                   | Barbara Von Eckardt    |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | rdf:type                                     | Person (dblp:Person)   |

[Tool]
Top 10 property alternatives:
1. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
2. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
3. edited by (dblp:editedBy): The publication is edited by the creator., Publication, createdBy, Creator
4. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
5. published in book (dblp:publishedInBook): The name of the book in which the publication has been published...journals and conference series are modelled as proper entities.), Publication, publishedIn
6. creator name (dblp:creatorName): The full name of the creator., Creator
7. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. created by (dblp:createdBy): The publication is created by the creator., Publication, Creator
10. published in book chapter (dblp:publishedInBookChapter): The chapter of the book in which the publication has been publis...journals and conference series are modelled as proper entities.), Publication

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
3. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
4. month of publication (dblp:monthOfPublication): The month the publication has been published., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. issn (dblp:issn): An International Standard Serial Number., identifier, Stream
7. title (dblp:title): The title of the publication., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
10. published as part of (dblp:publishedAsPartOf): The publication has been published as a part of the other publication., Publication

[Tool] False

[Tool] Stopped generation process

[User]
Feedback (status=done):
The output is correct. The user's question is a negative yes/no question ("Didn't Eckardt, Barbara Von not publish in 2001?"). The ASK query checks if there exists a publication authored by Barbara Von Eckardt in 2001. The result is False, meaning there is no such publication, so the answer is True to the user's question. The SPARQL query is correctly formed as an ASK query and uses the appropriate properties. No further refinement is needed.