PROCEEDINGS IPMU '08
A Query Refinement to Concept-based Information Retrieval
Silvia Calegari, Elie Sanchez
This paper presents an approach
to semantic Information Retrieval,
based on the use of a fuzzy conceptual
structure, called Object-Fuzzy
Concept Network (O-FCN). It consists
of a set of objects ODB stored
in a database and of a Fuzzy Concept
Network (FCN), which is a
complete weighted graph, with edges
among concept nodes, we called correlations.
It was already introduced
and described an Information Retrieval
Algorithm involving an OFCN.
The algorithm is validated in
a classical, crisp, case versus a fuzzy
case. The users had the possibility
to assign weights of importance to
concepts modifiers in queries in order
for the system to produce more
relevant documents. For a better
evaluation it has been finally introduced
a new fuzzy accuracy measure
that allowed to improve the results.
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