Keyphrases
- search engine
- web search engines
- query logs
- user queries
- answering queries
- search queries
- question answering systems
- web queries
- retrieval systems
- search logs
- query processing
- web search
- query suggestion
- correct answers
- search result
- query recommendation
- database
- query language
- information retrieval
- response time
- database queries
- natural language questions
- range queries
- exact match
- approximate answers
- commercial search engines
- search quality
- query answers
- answering questions
- relevance ranking
- query refinement
- query reformulation
- anchor text
- query result
- information retrieval systems
- question answering
- query formulation
- query terms
- web pages
- result lists
- exact answers
- natural language queries
- query answering
- returned by search engines
- retrieve documents
- meta search engine
- clickthrough data
- meta search
- relational databases
- data sources
- structured queries
- structured data
- web databases