An empirical study on query expansion and documentexpans ion in information retrieval.
Xuwei LiMuyun YangHaoliang QiSheng LiZhongyuan HanPublished in: ICMLC (2012)
Keyphrases
- query expansion
- information retrieval
- information retrieval systems
- retrieval effectiveness
- language modeling
- relevant documents
- retrieval model
- language model
- text retrieval
- pseudo relevance feedback
- ad hoc retrieval
- relevance feedback
- model for information retrieval
- term selection
- improving search
- document ranking
- query expansion methods
- original query
- test collection
- vocabulary mismatch
- passage retrieval
- patent retrieval
- automatic query expansion
- document collections
- retrieved documents
- relevance model
- trec genomics track
- query disambiguation
- probabilistic retrieval model
- information access
- short queries
- document retrieval
- question answering
- co occurrence
- text mining
- query processing
- learning algorithm