Istituto di Scienza e Tecnologie dell'Informazione     
Renda M. E., Straccia U. On the Effectiveness of Automatic Schema Matching Over Heterogeneous Digital Libraries. The document has been submitted to Conference: 16th International Conference on Database and Expert Systems Applications - DEXA 2005, Technical report, 2005.
Schema matching is the problem of finding mappings between different structured schemas. When retrieving information from digital libraries with heterogeneous schemas, the query over a target schema has to be transformed into a query over the schema of the digital library (the source schema) it has been submitted to. Schema mappings define the rules for this query transformation. In this paper we address the issue of automatically learning these mappings; furthermore, we evaluate their effectiveness in accessing distributed, heterogeneous digital libraries.
Subject Schema matching
Structured query
Query transformation
H.3.3 Information Search and Retrieval . Query formulation
H.3.3 Information Search and Retrieval . Search process
H.3.3 Information Search and Retrieval . Selection process
H.3.4 Systems and Software . Distributed systems
H.3.6 Library Automation

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