1994 | OriginalPaper | Chapter
Improving Text Retrieval for the Routing Problem using Latent Semantic Indexing
Author : David Hull
Published in: SIGIR ’94
Publisher: Springer London
Included in: Professional Book Archive
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Latent Semantic Indexing (LSI) is a novel approach to information retrieval that attempts to model the underlying structure of term associations by transforming the traditional representation of documents as vectors of weighted term frequencies to a new coordinate space where both documents and terms are represented as linear combinations of underlying semantic factors. In previous research, LSI has produced a small improvement in retrieval performance. In this paper, we apply LSI to the routing task, which operates under the assumption that a sample of relevant and non-relevant documents is available to use in constructing the query. Once again, LSI slightly improves performance. However, when LSI is used is conjuction with statistical classification, there is a dramatic improvement in performance.