Keyphrases
- web search engines
- web search
- search engine
- web documents
- query logs
- search result
- user queries
- search queries
- web searching
- desired information
- web pages
- web server
- web queries
- search quality
- ranking functions
- query suggestion
- internet search engines
- query log analysis
- web searches
- commercial search engines
- web spam
- search sessions
- information retrieval