Results 201 to 210 of about 8,825 (227)
Some of the next articles are maybe not open access.
Swip: A Natural Language to SPARQL Interface Implemented with SPARQL
2014The Swip approach aims at translating into SPARQL queries expressed in natural language exploiting query patterns. In this article, we present the main module of the prototype implementing this approach which entirely relies on SPARQL. All steps of the interpretation process which are carried out in this module are indeed completely performed on RDF ...
Camille Pradel +2 more
openaire +1 more source
Snap-SPARQL: A Java Framework for Working with SPARQL and OWL
2016We present Snap-SPARQL, which is a Java framework for working with SPARQL and OWL. The framework includes a parser, axiom template API, SPARQL algebra implementation, and graphical user interface components for reading, processing and executing SPARQL queries under the SPARQL 1.1 OWL Entailment Regime.
Matthew Horridge, Mark A. Musen
openaire +1 more source
Comparative Preferences in SPARQL
2018Sometimes one does not want all the solutions to a query but instead only those that are most desirable according to user-specified preferences. If a user-specified preference relation is acyclic then its specification and meaning are straightforward.
Patel-Schneider, Peter F. +2 more
openaire +2 more sources
An Executable Specification for SPARQL
2016Linked Data on the web consists of over 1000 datasets from a variety of domains. They are queried with the SPARQL query language. There exist many implementations of SPARQL, and this rich ecosystem has demanded a precise specification and compliance tests.
Mihaela A. Bornea +5 more
openaire +1 more source
2006
In both conceptions, the common factor (the web) imposes certain requirements: extremely variable scalability (from a home page to community sites to sites that encompass a significant fraction of the web), rapid evolution, radical distribution, arbitrary interconnection and aggregation, and very little validation or other means of control. The demands
openaire +1 more source
In both conceptions, the common factor (the web) imposes certain requirements: extremely variable scalability (from a home page to community sites to sites that encompass a significant fraction of the web), rapid evolution, radical distribution, arbitrary interconnection and aggregation, and very little validation or other means of control. The demands
openaire +1 more source
The SPARQLING System for SPARQL Queries over GRAPHOL ontologies. [PDF]
, 2018 In this demo we present the SPARQLING system for SPARQL query building based on the GRAPHOL visual language for ontologies. The characterizing feature of SPARQLING is the idea to preserve and take advantage of the native diagrammatic representation of GRAPHOL ontologies, allowing the user to navigate it, and to construct a graph-based representation of
Di Bartolomeo, Sara +3 more
openaire +1 more source
On the Selection of SPARQL Endpoints to Efficiently Execute Federated SPARQL Queries
2016We consider the problem of source selection and query decomposition in federations of SPARQL endpoints, where query decompositions of a SPARQL query should reduce execution time and maximize answer completeness. This problem is in general intractable, and performance and answer completeness of SPARQL queries can be considerably affected when the number
Maria-Esther Vidal +4 more
openaire +2 more sources
A survey of RDF stores & SPARQL engines for querying knowledge graphs
VLDB Journal, 2021Waqas Ali +2 more
exaly
Instruct-to-SPARQL: A text-to-SPARQL dataset for training SPARQL Agents
Proceedings of the 2025 ACM SIGIR Conference on Human Information Interaction and RetrievalMehdi Ben Amor +4 more
openaire +1 more source
Neural machine translating from natural language to SPARQL
Future Generation Computer Systems, 2021Sebastian Rudolph, Dagmar Gromann
exaly