Query Expansion and Evolution of Topic in Information Retrieval Systems.
Jiri DvorskýJan MartinovicVáclav SnáselPublished in: DATESO (2004)
Keyphrases
- information retrieval systems
- query expansion
- retrieval effectiveness
- information retrieval
- pseudo relevance feedback
- relevance feedback
- retrieval systems
- document collections
- user queries
- relevant documents
- query terms
- ad hoc retrieval
- language modeling
- text retrieval
- retrieval model
- automatic query expansion
- expansion terms
- query expansion methods
- original query
- xml retrieval
- query translation
- retrieved documents
- structured documents
- search queries
- topic models
- vector space model