AVVISO DI SEMINARIO
Dipartimento di Informatica e Automazione 

9 novembre 2009 ore 14:30
Aula N1
Facoltà di Ingegneria 
Universita' di Roma Tre 
via della Vasca Navale, 79
Roma 

Professoressa Renée Miller (University of Toronto) 

"Leveraging Data and Structure in Ontology Integration"

Abstract

There is a great deal of research on schema and ontology integration
which makes use of rich logical constraints to reason about the
structural and logical alignment of schema and ontologies.  There is
also considerable work on matching data instances from heterogeneous
schema or ontologies.  However, little work exploits the fact that
ontologies include both data and structure.  We provide a first step
in closing this gap with a new algorithm (Iliads) that integrates both
data matching and logical reasoning to achieve better matching of
ontologies.  We evaluate our algorithm on a set of pairs of OWL Lite
ontologies with the schema and data matchings found by human
reviewers.  We compare against two systems - the ontology matching
tool FCA-merge and the schema matching tool COMA++.  This is
preliminary work in this area and the talk will highlight further
opportunities for integrating data matching (including entity
resolution) with schema matching and mapping.  This is joint work with
Octavian Udrea and Lise Getoor of the University of Maryland which
appeared in SIGMOD 2007.