QUERY EXPANSION WITH USAGE OF THE PROBABILISTIC LATENT SEMANTIC INDEXING.

V.Dobrynin, I. Nekrestyanov

Saint-Petersburg State University

vdobr@oasis.apmath.spbu.ru, igor@meta.math.spbu.ru
  
The goal of the paper is to investigate the effectiveness of the query expansion based on the usage of the probabilistic latent semantic indexing and relevance feedback. Standard set of test data (TREC-5) was used for experiments.