Istituto di Scienza e Tecnologie dell'Informazione     
Candela L., Castelli D., Pagano P. A Theory for a Semantic-based Search Service. The document :, Technical report, 2004.
We illustrate a new approach to the formulation and processing of queries to search digital libraries built re-using and integrating pre-existing heterogeneous information sources. This approach provides a better support for unified search by enhancing the capability of the digital library to satisfy the user needs. The paper presents the theory underlying the proposed approach and describes how we exploit semantic information in the metadata formats and controlled vocabularies produced by information sources locally, and usually discarded by current digital libraries systems.
Subject Semantic mapping
Distributed search
H.3.7 Digital Libraries
H.3.3 Information Search and Retrieval
H.3.4 Systems and Software: Distributed systems

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