Very low-dimensional latent semantic indexing for local query regions.
Yinghui XuKyoji UmemuraPublished in: IRAL (2003)
Keyphrases
- latent semantic indexing
- vector space
- low dimensional
- high dimensional
- vector space model
- dimensionality reduction
- text retrieval
- singular value decomposition
- principal component analysis
- data points
- high dimensional data
- retrieval model
- feature space
- query expansion
- manifold learning
- user queries
- document space
- query processing
- keywords
- retrieval systems
- feature vectors
- information retrieval
- domain knowledge
- feature extraction
- database systems
- machine learning