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» Latent semantic indexing (LSI) fails for TREC collections
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SIGKDD
2010
146views more  SIGKDD 2010»
12 years 11 months ago
Latent semantic indexing (LSI) fails for TREC collections
The aim of latent semantic indexing (LSI) is to uncover the relationships between terms, hidden concepts, and documents. LSI uses the matrix factorization technique known as singu...
Avinash Atreya, Charles Elkan
SDM
2009
SIAM
140views Data Mining» more  SDM 2009»
14 years 1 months ago
Straightforward Feature Selection for Scalable Latent Semantic Indexing.
Latent Semantic Indexing (LSI) has been validated to be effective on many small scale text collections. However, little evidence has shown its effectiveness on unsampled large sca...
Jun Yan, Shuicheng Yan, Ning Liu, Zheng Chen
TREC
2001
13 years 5 months ago
Challenges of Multi-Mode IR Software
Web track results are presented. A software project, IRTools, is described. IRTools is intended to enable information retrieval (IR) experimentation by incorporating methods for m...
Gregory B. Newby
SIGIR
2004
ACM
13 years 9 months ago
Polynomial filtering in latent semantic indexing for information retrieval
Latent Semantic Indexing (LSI) is a well established and effective framework for conceptual information retrieval. In traditional implementations of LSI the semantic structure of...
Effrosini Kokiopoulou, Yousef Saad