Keyphrases
- information retrieval
- relevance feedback
- test collection
- query expansion
- probabilistic retrieval model
- retrieval systems
- ad hoc retrieval
- query refinement
- retrieval effectiveness
- information retrieval systems
- website
- query processing
- current search engines
- query terms
- trec web track
- search engine
- meta search
- question answering
- user queries
- current web search engines
- keywords
- semantic web
- ir evaluation
- web information retrieval
- web documents
- boolean queries
- web pages
- trec web
- relevant documents
- information access
- topic distillation
- web searching
- retrieval strategies
- ambiguous queries
- web queries
- query interface
- document rankings
- tf idf