Query expansion using mutual information between words in question and its answer.
Kanako KomiyaYuji AbeYoshiyuki KotaniPublished in: ITI (2013)
Keyphrases
- query expansion
- mutual information
- language model
- vocabulary mismatch
- n gram
- information retrieval systems
- feature selection
- information retrieval
- language modeling
- text retrieval
- retrieval effectiveness
- relevance feedback
- pseudo relevance feedback
- relevant documents
- document level
- similarity measure
- automatic query expansion
- information gain
- query disambiguation
- retrieval model
- query terms
- text documents
- ranked retrieval
- improving search
- word sense disambiguation
- ad hoc retrieval
- interactive query expansion
- biomedical information retrieval
- relevance model
- query translation
- vector space model
- co occurrence
- keywords
- passage retrieval
- word segmentation
- noun phrases
- document retrieval
- search engine