An Empirical Study of Query Expansion and Cluster-Based Retrieval in Language Modeling Approach.
Seung-Hoon NaIn-Su KangJi-Eun RohJong-Hyeok LeePublished in: AIRS (2005)
Keyphrases
- query expansion
- language modeling
- retrieval model
- language model
- information retrieval systems
- information retrieval
- relevance feedback
- text retrieval
- pseudo relevance feedback
- relevant documents
- retrieval effectiveness
- original query
- expert finding
- ad hoc retrieval
- cross lingual
- expansion terms
- term weighting
- query specific
- sentence retrieval
- relevance model
- query terms
- document retrieval
- pseudo feedback
- retrieved documents
- trec collections
- retrieval systems
- document ranking
- query translation
- passage retrieval
- n gram
- short queries
- vector space model
- document level
- tf idf
- machine translation
- question answering
- document collections
- probabilistic model