Query Expansion Based on Topics.
Bing ZhangYajun DuHaiming LiYuTing WangPublished in: FSKD (2) (2008)
Keyphrases
- query expansion
- information retrieval
- information retrieval systems
- retrieval effectiveness
- language model
- relevant documents
- text retrieval
- relevance feedback
- improving search
- language modeling
- pseudo relevance feedback
- original query
- retrieval model
- query terms
- topic models
- automatic query expansion
- keywords
- ranked retrieval
- ad hoc retrieval
- query topic
- interactive query expansion
- trec genomics track
- relevance model
- retrieved documents
- topic modeling
- query specific
- latent dirichlet allocation
- text documents
- active learning
- vocabulary mismatch