Knowledge Graph Exploration: A Usability Evaluation of Query Builders for Laypeople

Emil Kuric, Javier David Fernandez Garcia, Olha Drozd

Publication: Chapter in book/Conference proceedingContribution to conference proceedings

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SPARQL enables users to access and browse knowledge graphs in a precise way. However, using SPARQL requires knowledge that many casual users lack. To counter this, specific tools have been created that enable more casual users to browse and query results. This paper evaluates and compares the most prominent techniques, QueryVOWL, SPARKLIS and the Wikidata Query Service (WQS), through a usability evaluation, using a mixed-method evaluation based on usability metrics and heuristics, containing both quantitative and qualitative data. The findings show that while WQS achieved the best results, usability problems were encountered in all tools. Key aspects for usability, extracted from the evaluation, serve as important contributions for future query builders.
Original languageEnglish
Title of host publicationSemantic Systems. The Power of AI and Knowledge Graphs (15th International Conference, SEMANTiCS 2019, Karlsruhe, Germany, September 9-12, 2019, Proceedings)
Editors Acosta, Maribel, Cudré-Mauroux, Philippe, Maleshkova, Maria, Pellegrini, Tassilo, Sack, Harald, Sure-Vetter, York
Place of PublicationKarlsruhe, Germany
Pages326 - 342
ISBN (Print)978-3-030-33219-8
Publication statusPublished - 2019

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