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On the way to temporal OBDA systems
Umeå University, Faculty of Science and Technology, Department of Computing Science. Free University of Bozen-Bolzano, Italy.ORCID iD: 0000-0001-5174-9693
Umeå University, Faculty of Science and Technology, Department of Computing Science.
Umeå University, Faculty of Science and Technology, Department of Computing Science.ORCID iD: 0000-0002-2344-9658
Umeå University, Faculty of Science and Technology, Department of Computing Science.ORCID iD: 0000-0003-0632-0294
2023 (English)In: Proceedings of the 15th Alberto Mendelzon International Workshop on Foundations of Data Management (AMW 2023), CEUR-WS , 2023Conference paper, Published paper (Refereed)
Abstract [en]

Extending the OBDA approach - where multiple data sources are exposed to users via a unified conceptual schema based on description logics - to also cover temporal reasoning has been a long standing goal, with many proposals over the last decades. To the best of our knowledge, these have yet to yield results in the form of systems or prototypes. As part of our ongoing work towards practical applicability, we identify here a number of key problems, which we believe have not been addressed suitably by previous works. Among these is the ability to deal with heterogeneous representations of time, the ability to deal with temporal inconsistencies, either due to missing value samples or conflicting values for a given time point and finally we also seek a suitable query language, where we in particular want compositionality - the ability to use the output of queries to form new temporal views on the data. We present here our initial ideas on how to meet these challenges.

Place, publisher, year, edition, pages
CEUR-WS , 2023.
Series
CEUR Workshop proceedings, ISSN 1613-0073 ; 3409
Keywords [en]
description logic, Ontology-based data access, temporal database
National Category
Computer Sciences
Identifiers
URN: urn:nbn:se:umu:diva-211805Scopus ID: 2-s2.0-85162909647OAI: oai:DiVA.org:umu-211805DiVA, id: diva2:1781924
Conference
15th Alberto Mendelzon International Workshop on Foundations of Data Management, AMW 2023, Santiago de Chile, Chile, May 22-26, 2023
Funder
Knut and Alice Wallenberg FoundationAvailable from: 2023-07-11 Created: 2023-07-11 Last updated: 2023-11-24Bibliographically approved

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Calvanese, DiegoOkulmus, CemŠimkus, Mantas

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