A technique for deriving hyponymies and overlappings from database schemes

Authors:
L. Palopoli;D. Saccà;G. Terracina;D. Ursino
Affiliations:
DIMET, Università Mediterranea di Reggio Calabria, Italy;-;DIMET, Università Mediterranea di Reggio Calabria, Italy;DIMET, Università Mediterranea di Reggio Calabria, Italy
Venue:
Data & Knowledge Engineering
Year:
2002

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Abstract

This paper tackles the problem of semi-automatically extracting hyponymy and overlapping properties between entities belonging to heterogeneous database schemes. The technique we propose consists of two phases: the first one derives basic hyponymies and overlappings starting from a specific situation; the second one receives basic properties derived from the first phase and extracts further, more general hyponymies. In addition, the paper reports some experimental results obtained by applying the technique presented here to the database schemes of Italian Central Government Offices. Finally, it shows some applications of derived hyponymies and overlappings; in particular it illustrates how they can influence scheme integration.