Joaquim Macedo, António Costa and Vasco Freitas
Universidade do Minho
Departamento de Informática
P-4700-320 Braga, Portugal
Tel.: +351 253 604475
Fax.: +351 253 604471
E-mail: {macedo,costa,vf (at) uminho.pt}
The existence of replicated documents or indexes in distributed information retrieval introduces some level of overlapping between its component databases. In this paper, a new data fusion method taking in account the overlapping information is compared with a conventional fusion method. The overall system effectiveness evaluation enables preliminary conclusions about the importance of such parameter for data fusion in distributed information retrieval.
Keywords: Distributed Information Retrieval, Replication, Data Fusion.