Open Seminar - Ontology-based Data Access and Integration: Relational Data and Beyond by Prof. Diego Calvanese
Place: E-house, LTH (E:1426)
Contact: jacek [dot] malec [at] cs [dot] lth [dot] se
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Speaker: Professor Diego Calvanese, Research Centre for Knowledge and Data (KRDB), within the Faculty of Computer Science of the Free University of Bozen-Bolzano (Italy)
Topic: Ontology-based Data Access and Integration: Relational Data and Beyond
Ontology-based data access and integration (OBDA/I) is by now a well-established paradigm where users are provided access to data sources through a conceptual view that abstracts away details about how the data is organized and stored. This conceptual view is realized by an ontology connected to the data sources through declarative mappings, and both ontology and mappings are exploited for automated query processing. In the last decade, the theoretical foundations for OBDA/I have been laid, and tools have been developed that adopt advanced optimization techniques and make query processing in OBDA/I highly effective. Most developments and applications in real-world scenarios are for the prominent case where the data sources being queried are standard relational databases. However, the need has emerged for extending the paradigm to novel types of data, such as temporal, geo-spatial, or tree-structured data. In this talk, we first overview the basic principles underlying OBDA/I by relying on significant industrial use cases. We then discuss the challenges that extensions beyond relational data pose for OBDA/I, and we present recent developments on how to incorporate such novel forms of data into state-of-the-art systems.
Diego Calvanese is a full professor at the Research Centre for Knowledge and Data (KRDB), within the Faculty of Computer Science of the Free University of Bozen-Bolzano (Italy), where he teaches courses on knowledge bases, databases, data integration, ontologies, and theory of computing. His research interests include formalisms for knowledge representation and reasoning, ontology-based data access and integration, description logics, Semantic Web, and data-aware
process management. He is the author of more than 350 refereed publications, including ones in the most prestigious venues in artificial intelligence and databases, with almost 29000 citations and an h-index of 68, according to Google Scholar. In 2012-2013 he has been a visiting researcher at the Technical University of Vienna as Pauli Fellow of the ``Wolfgang Pauli Institute''. He has been the program chair of the 34th ACM Symposium on Principles of Database Systems (PODS-2015) and the general chair of the 28th European Summer School in Logic, Language and Information (ESSLLI-2016), and he will be the program co-chair of the 16th Int. Conference on Principles of Knowledge Representation and Reasoning (KR-2020). He is a Fellow of the European Association for Artificial Intelligence (EurAI).