Keyphrases
- user queries
- search engine
- web search engines
- web pages
- keywords
- web databases
- information retrieval systems
- query logs
- relevant documents
- web search
- website
- search queries
- query processing
- query terms
- web documents
- matching algorithm
- retrieval model
- search result
- database systems
- deep web
- potentially relevant
- information retrieval
- ranked list
- keyword search
- retrieval systems
- web queries
- databases
- web data
- web users
- web content
- retrieved documents
- metasearch engine