161 search results - page 22 / 33 » Hierarchy-Regularized Latent Semantic Indexing |
FLAIRS
2004
13 years 8 months ago
2004
This paper presents work that uses Transductive Latent Semantic Indexing (LSI) for text classification. In addition to relying on labeled training data, we improve classification ...
ECIR
2006
Springer
13 years 8 months ago
2006
Springer
This paper presents two sentence retrieval methods. We adopt the task definition done in the TREC Novelty Track: sentence retrieval consists in the extraction of the relevant sente...
FLAIRS
2006
13 years 8 months ago
2006
The world wide web has a wealth of information that is related to almost any text classification task. This paper presents a method for mining the web to improve text classificati...
CORR
2007
Springer
13 years 7 months ago
2007
Springer
Using Dirac Notation as a powerful tool, we investigate the three classical Information Retrieval (IR) models and some their extensions. We show that almost all such models can be...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
We introduce the posterior probabilistic clustering (PPC), which provides a rigorous posterior probability interpretation for Nonnegative Matrix Factorization (NMF) and removes th...