First-order Ontology Mediated Database Querying via Query Reformulation

Diego Calvanese and Enrico Franconi

A Comprehensive Guide Through the Italian Database Research Over the Last 25 Years. Volume 31 of Studies in Big Data. 2018.

We address the problem of query answering with ontologies over databases. We consider first-order ontology systems playing the role of a conceptual model of a database represented as a classical finite relational store, either with an open world or a closed world reading. Queries over the conceptual signature are reformulated into queries over the database signature, so to get the same answer directly via SQL relational database technology. We consider two distinct approaches to reformulation, perfect and exact reformulation. We discuss advantages and disadvantages of each of the two approaches, and we report on some significant results appeared in the literature.


@incollection{SEBD25-2018,
   title = "First-order Ontology Mediated Database Querying via Query
Reformulation",
   year = "2018",
   author = "Diego Calvanese and Enrico Franconi",
   editor = "Sergio Flesca and Sergio Greco and Elio Masciari and Domenico
Saccà",
   booktitle = "A Comprehensive Guide Through the Italian Database
Research Over the Last 25 Years",
   pages = "169--185",
   volume = "31",
   publisher = "Springer",
   series = "Studies in Big Data",
   doi = "10.1007/978-3-319-61893-7_10",
}
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