Sciweavers

714 search results - page 124 / 143
» Conceptual Query Expansion
Sort
View
JASIS
2010
182views more  JASIS 2010»
13 years 6 months ago
Understanding latent semantic indexing: A topological structure analysis using Q-analysis
Abstract – The method of latent semantic indexing (LSI) is well known for tackling the synonymy and polysemy problems in information retrieval. However, its performance can be ve...
Dandan Li, Chung-Ping Kwong
CORR
2011
Springer
139views Education» more  CORR 2011»
13 years 2 months ago
A Science Model Driven Retrieval Prototype
This paper is about a better understanding on the structure and dynamics of science and the usage of these insights for compensating the typical problems that arises in metadata-d...
Philipp Mayr, Philipp Schaer, Peter Mutschke
COLING
2010
13 years 2 months ago
Discriminative Training for Near-Synonym Substitution
Near-synonyms are useful knowledge resources for many natural language applications such as query expansion for information retrieval (IR) and paraphrasing for text generation. Ho...
Liang-Chih Yu, Hsiu-Min Shih, Yu-Ling Lai, Jui-Fen...
JDCTA
2010
152views more  JDCTA 2010»
13 years 2 months ago
A Semantic Approach to Extract the Final Answer in SBUQA Question Answering System
In this paper we introduce the semantic approach of the answer extraction component of a question answering system called SBUQA. The answer extraction component gets the retrieved...
Mehrnoush Shamsfard, Mahsa Arab Yarmohammadi
SIGKDD
2010
146views more  SIGKDD 2010»
13 years 2 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