Results 1 to 10 of about 11,868 (248)
SGPT: A Generative Approach for SPARQL Query Generation From Natural Language Questions
IEEE Access, 2022 SPARQL query generation from natural language questions is complex because it requires an understanding of both the question and underlying knowledge graph (KG) patterns.
Md Rashad Al Hasan Rony +4 more
doaj +2 more sources
Global cross-database search system for X-ray absorption spectra. [PDF]
J Synchrotron RadiatA portal to cross‐search XAFS databases worldwide has been created and the unification of vocabulary and knowledge behind it are discussed.While the importance of a systematic overview of scientific data and demands toward data integration are increasing, data capitalization and confidentiality are also emerging competitively.
Ishii M +5 more
europepmc +2 more sources
Efficient SPARQL Queries Generator for Question Answering Systems
IEEE Access, 2022 Much like traditional database querying, the question answering process in a Question Answering (QA) system involves converting a user’s question input into query grammar, querying the knowledge base through the query grammar, and finally ...
Yi-Hui Chen +2 more
doaj +2 more sources
Intelligent SPARQL Query Generation for Natural Language Processing Systems
IEEE Access, 2021 Developing question answering (QA) systems that process natural language is a popular research topic. Conventionally, when QA systems receive a natural language question, they choose useful words or phrases based on their parts-of-speech (POS) tags.
Yi-Hui Chen, Eric Jui-Lin Lu, Ting-An Ou
doaj +2 more sources
Dynamic Linked Data: A SPARQL Event Processing Architecture
Future Internet, 2018 This paper presents a decentralized Web-based architecture designed to support the development of distributed, dynamic, context-aware and interoperable services and applications. The architecture enables the detection and notification of changes over the
Luca Roffia +5 more
doaj +2 more sources
An Approach of Automatic SPARQL Generation for BIM Data Extraction
Applied Sciences, 2020 Generally, building information modelling (BIM) models contain multiple dimensions of building information, including building design data, construction information, and maintenance-related contents, which are related with different engineering ...
Dongming Guo +2 more
doaj +2 more sources
Ontop: Answering SPARQL queries over relational databases
Semantic Web, 2016 We present Ontop, an open-source Ontology-Based Data Access (OBDA) system that allows for querying relational data sources through a conceptual representation of the domain of interest, provided in terms of an ontology, to which the data sources are ...
Diego Calvanese +7 more
semanticscholar +3 more sources
Dataset of ontology competency questions to SPARQL-OWL queries translations
Data in Brief, 2020 This data article reports on a new set of 234 competency questions for ontology development and their formalisation into a set of 131 SPARQL-OWL queries.
Jedrzej Potoniec +3 more
doaj +2 more sources
A Comprehensive Evaluation of Neural SPARQL Query Generation From Natural Language Questions [PDF]
IEEE Access, 2023 In recent years, the field of neural machine translation (NMT) for SPARQL query generation has witnessed significant growth. Incorporating the copy mechanism with traditional encoder-decoder architectures and using pre-trained encoder-decoder and large ...
Papa Abdou Karim Karou Diallo +2 more
semanticscholar +1 more source
Modern Baselines for SPARQL Semantic Parsing [PDF]
Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2022 In this work, we focus on the task of generating SPARQL queries from natural language questions, which can then be executed on Knowledge Graphs (KGs). We assume that gold entity and relations have been provided, and the remaining task is to arrange them ...
Debayan Banerjee +4 more
semanticscholar +1 more source