Results 121 to 130 of about 12,237 (214)

Using SPARQL to access Linked Open Data

, 2015
This lesson explains why many cultural institutions are adopting graph databases, and how researchers can access these data though the query language called ...
Matthew Lincoln
core  

Enhancing SPARQL Query Generation for Knowledge Base Question Answering Systems by Learning to Correct Triplets

Applied Sciences
Generating SPARQL queries from natural language questions is challenging in Knowledge Base Question Answering (KBQA) systems. The current state-of-the-art models heavily rely on fine-tuning pretrained models such as T5.
Jiexing Qi, Chang Su, Zhixin Guo, Lyuwen Wu, Zanwei Shen, Luoyi Fu, Xinbing Wang, Chenghu Zhou   +7 more
doaj   +1 more source

Tunning fuzzy SPARQL queries

During the last years, the study of fuzzy database query languages has attracted the attention of many researchers. In this line of research, our group has proposed and developed FSA-SPARQL (Fuzzy Sets and Aggregators based SPARQL), which is a fuzzy ...
Becerra Terón, Antonio, Almendros Jiménez, Jesús Manuel, Riaza, José A., Moreno, Ginés   +3 more
core   +1 more source

Negation in SPARQL

, 2020
This paper presents a thorough study of negation in SPARQL. The types of negation supported in SPARQL are identified and their main features discussed. Then, we study the expressive power of the corresponding negation operators.
Renzo Angles, Claudio Gutierrez
core  

MetaboT: an LLM-based multi-agent framework for interactive analysis of mass spectrometry metabolomics knowledge graphs. [PDF]

J Cheminform
Bekbergenova M, Pradi L, Navet B, Tysinger E, Michel F, Feraud M, Taghzouti Y, Chen YZ, Kirchhoffer O, Mehl F, Legrand M, Jiang T, Pagni M, Hassoun S, Wolfender JL, Bittremieux W, Gandon F, Nothias LF.   +17 more
europepmc   +1 more source

From data silos to actionable insights: a comparative evaluation of data access models and practical guidelines for animal health surveillance. [PDF]

Front Vet Sci
Noor S, Taelman R, Degroote J, Pardon B, van Schaik G, Rafiq M, Delavenne C, Liu E, Zhang H, Niu P, Hostens M.   +10 more
europepmc   +1 more source

CAVE-Onc: Graph-constrained agentic validation for cross-domain contradictions in CDISC oncology submissions. [PDF]

PLoS One
Yan J.
europepmc   +1 more source

Accurate SPARQL generation via in-context learning and schema-based query construction. [PDF]

Bioinformatics
Nagazumi H, Moriya Y, Kawashima S, Katayama T, Shimizu K.   +4 more
europepmc   +1 more source

A knowledge graph dataset of medieval and renaissance geographical works. [PDF]

Data Brief
Bartalesi V, Pratelli N, Lenzi E.
europepmc   +1 more source

MolMeDB RDF: transforming a relational database about biological membranes to the RDF format to increase interoperability. [PDF]

J Cheminform
Martinát D, Juračka J, Galgonek J, Berka K.   +3 more
europepmc   +1 more source