Seminar: Prof. Leopoldo Bertossi - September, 23, 2013 at 12.00am

Data dell'evento: 
Lunedì, 23 Settembre, 2013 - 12:00
Aula A2, DIAG, Via Ariosto 25, piano terra
Leopoldo Bertossi (Carleton University , Ottawa, Canada)

Matching Dependencies (MDs) are logical rules that specify that  certain attribute values have to be made equal when certain  similarity conditions on other attribute values hold in a database.  MDS are meant to be used for entity resolution (ER), which is the  data cleaning problem of merging into a single
representation possibly several representations in the database of  the same external entity.

In this talk we present recent research around MDs, including  alternative semantics for MDs, query answering under MDs and its  complexity, and logical specifications of the intended clean  instances after MD-based ER.