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Current Research
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Čerāns K, Bojārs U, Ovčiņņikova J, Lāce L, Grasmanis M, Sproģis A.
Towards Visual Federated SPARQL Queries.
In: SEMANTiCS-PDWT 2024
CEUR Workshop Proceedings Vol 3759, 2024. https://ceur-ws.org/Vol-3759/paper24.pdf
Lāce L, Romāne A, Grasmanis M, Čerāns K.
A Method of Visual Presentation of Data Schemas.
In: Visualization and Interaction for Ontologies and Linked Data 2023. Vol 3508.
CEUR Workshop Proceedings. 2023:57-62. https://ceur-ws.org/Vol-3508/paper6.pdf
Bojārs U, Ovčiņņikova J, Lāce L, Sproģis A, Grasmanis M, Čerāns K.
Integrating Sparklis and ViziQuer for Enhanced SPARQL Querying and Visualization.
In: Visualization and Interaction for Ontologies and Linked Data 2023. Vol 3508.
CEUR Workshop Proceedings. 2023:41-48. https://ceur-ws.org/Vol-3508/paper4.pdf
Ovčiņņikova J, Šostaks A, Čerāns K.
Visual Diagrammatic Queries in ViziQuer: Overview and Implementation.
Baltic Journal of Modern Computing. 2023;11(2):317-350. doi:10.22364/bjmc.2023.11.2.07
Čerans K, Ovčinnikova J, Grasmanis M, Lāce L.
Experience with Visual SPARQL Queries over DBPedia.
In: Visualization and Interaction for Ontologies and Linked Data 2022. Vol 3253.
CEUR Workshop Proceedings. 2022:59-65. https://ceur-ws.org/Vol-3253/paper6.pdf
Čerāns K, Ovčiņņikova J, Grasmanis M, Lāce L.
Towards UML-Style Visual Queries over Wikidata.
In: The Semantic Web: ESWC 2022 Satellite Events.
Vol 13384. LNCS. Springer; 2022:11-15. doi:10.1007/978-3-031-11609-4_2
Download the author manuscript
K.Cerans, L.Lace, M.Grasmanis, J.Ovcinnikova.
A UML-style Visual Query Environment over DBPedia.
In Proc. of MTSR'2021, Springer Verlag CCIS Series
Download the author manuscript
K.Cerans, J.Ovcinnikova, M.Grasmanis, L.Lace and A.Romane.
Visual Presentation of SPARQL Queries in ViziQuer
In Voila!2021,
CEUR Workshop Proceedings, Vol.3023
Čerāns, K., Ovčiņņikova, J., Bojārs, U., Grasmanis, M., Lāce, L. and Romāne, A.,
Schema-Backed Visual Queries over Europeana and Other Linked Data Resources.
ESWC 2021 Satellite Events. Springer LNCS, Vol.12739, pp.82-87.
Download the author manuscript
K.Cerans, A.Sostaks, U.Bojars, J.Ovcinnikova, L.Lace, M.Grasmanis, A.Romane, A.Sprogis and J.Barzdins.
ViziQuer: a Visual Notation for RDF Data Analysis Queries.
In Proc. of MTSR'2018, in Springer Verlag CCIS Series
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K.Cerans, A.Sostaks, U.Bojars, J.Ovcinnikova, L.Lace, M.Grasmanis, A.Romane, A.Sprogis and J.Barzdins.
ViziQuer: a Web-based Tool for Visual Diagrammatic Queries over RDF Data
In The Semantic Web: ESWC 2018 Satellite Events, Springer Verlag Lecture Notes in Computer Science, Vol.11155, pp.158-163.
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K.Cerans, J.Barzdins, A.Sostaks, J.Ovcinnikova, L.Lace, M.Grasmanis and A.Sprogis.
Extended UML Class Diagram Constructs for Visual SPARQL Queries in ViziQuer/web
In Voila!2017, CEUR Workshop Proceedings, Vol.1947
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Earlier Research
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K.Cerans, J.Ovcinnikova. ViziQuer: Notation and Tool for Data Analysis SPARQL Queries.
In Voila!2016, CEUR Workshop Proceedings, Vol.1704
K.Cerans, J.Ovcinnikova, M. Zviedris. SPARQL Aggregate Queries made easy with Diagrammatic Query Language ViziQuer.
In ISWC 2015 Posters & Demonstrations Track, CEUR Workshop Proceedings, Vol.1486
K.Cerans, J.Ovcinnikova, M. Zviedris. Towards Graphical Query Notation for Semantic Databases. In BIR 2015, Springer LNBIP.
G. Barzdins, S.Rikacovs, M. Zviedris. Graphical Query Language as SPARQL Frontend.
In Local Proceedings of 13th East-European Conference (ADBIS 2009), pp. 93-107. Riga Technical University, Riga. (2009)
G.Barzdins, E.Liepins, M.Veilande, M.Zviedris, "Ontology Enabled Graphical Database Query Tool for End-Users",
Selected papers from DBIS'2008, Hele-Mai Haav (Eds.), Frontiers in Artificial Intelligence and Applicatons series, IOS Press, 2009. 187:105-116
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