A Grammatical Approach to the Extraction of Index Terms
Jesús Vilares, Miguel Á. Alonso · 2003
The extraction of the keywords that characterize each document in a given collection is one of the most important components of an Information Retrieval system. In this article, we propose to apply shallow parsing, implemented by means of cascades of nite-state transducers, to extract complex index terms based on an approximate grammar of Spanish. The eectiveness of the index terms extracted has been evaluated through the CLEF collection.