Results of the ontology alignment evaluation initiative 2020

The Ontology Alignment Evaluation Initiative (OAEI) aims at comparing ontology matching systems on precisely defined test cases. These test cases can be based on ontologies of different levels of complexity and use different evaluation modalities (e.g., blind evaluation, open evaluation, or consensus). The OAEI 2020 campaign offered 12 tracks with 36 test cases, and was attended by 19 participants. This paper is an overall presentation of that campaign

SparTDD -a SPARQL based Thing Description Directory

International audienceLogilab and Siemens collaborated on the implementation of a Thing Description Directory based on a SPARQL endpoint. The Thing Description (TD), as standardized by the World Wide Web Consortium (W3C), is a JSON-LD based document comprising information about connectivity, security, and semantics of Internet of Things devices or services. TDs represent RDF triples using a defined ontology and JSON-LD context. A Thing Description Directory (TDD) is a standardized endpoint in which we can store, update and retrieve TDs. A TDD based on a SPARQL endpoint is the best way to get the most out of the potential of Semantic Web technologies combined with Thing Descriptions. This article presents SparTDD, an implementation of a SPARQL-based TDD and its future applications in the industrial digital twin context

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National audienc