6533b831fe1ef96bd1298e0b

RESEARCH PRODUCT

ViziQuer: A Web-Based Tool for Visual Diagrammatic Queries Over RDF Data

Kārlis ČErānsAiga RomāneAgris SostaksArtūrs SproģisUldis BojārsJuris BārzdiņšJūlija OvčiņņikovaMikus GrasmanisLelde Lāce

subject

Service (systems architecture)Information retrievalbusiness.industryComputer scienceInformationSystems_INFORMATIONSTORAGEANDRETRIEVAL010401 analytical chemistry05 social sciencesDatabase schemaInformationSystems_DATABASEMANAGEMENTcomputer.file_format01 natural sciences0104 chemical sciencesData setDiagrammatic reasoningFragment (logic)SPARQLWeb application0501 psychology and cognitive sciencesRDFbusinesscomputer050107 human factors

description

We demonstrate the open source ViziQuer tool for web-based creation and execution of visual diagrammatic queries over RDF/SPARQL data. The tool supports the data instance level and statistics queries, providing visual counterparts for most of SPARQL 1.1 select query constructs, including aggregation and subqueries. A query environment can be created over a user-supplied SPARQL endpoint with known data schema (a data schema exploration service is available, as well). There are pre-defined demonstration query environments for a mini-university data set, a fragment of synthetic similar to reality hospital data set, and a variant of Linked Movie Database RDF data set.

yearjournalcountryeditionlanguage
2018-01-01
https://doi.org/10.1007/978-3-319-98192-5_30