Subject Knowledge, Source of Terms, and Term Selection in Query Expansion: An Analytical Study.
Pertti VakkariPublished in: ECIR (2002)
Keyphrases
- term selection
- query expansion
- expansion terms
- pseudo relevance feedback
- ad hoc retrieval
- knowledge sources
- relevance feedback
- information retrieval systems
- information retrieval
- language model
- text categorization
- retrieval effectiveness
- language modeling
- relevant documents
- query terms
- text retrieval
- original query
- retrieved documents
- selection mechanism
- retrieval model
- data sets
- bag of words
- text classification
- data mining
- knowledge base