Query Expansion Using a Collection Dependent Probabilistic Latent Semantic Thesaurus.
Laurence Anthony F. ParkKotagiri RamamohanaraoPublished in: PAKDD (2007)
Keyphrases
- latent semantic
- query expansion
- information retrieval systems
- language model
- information retrieval
- retrieval effectiveness
- document collections
- text retrieval
- relevance feedback
- pseudo relevance feedback
- relevant documents
- retrieval model
- query terms
- query expansion methods
- automatic query expansion
- machine learning
- high dimensional
- text mining
- text data
- average precision
- feature extraction
- metadata