Keyphrases
- trec web track
- test collection
- search engine
- topic distillation
- query logs
- anchor text
- information retrieval
- web search
- relevant documents
- retrieval systems
- web search engines
- retrieval model
- document collections
- web pages
- language model
- search tasks
- metadata
- information extraction
- relational databases
- relevance assessments
- query independent
- keywords
- website