Keyphrases
- user queries
- search engine
- information retrieval systems
- clustering algorithm
- web search engines
- potentially relevant
- query logs
- relevant documents
- keywords
- query processing
- clustering method
- metasearch engine
- k means
- low dimensional
- retrieval model
- document clustering
- information retrieval
- web databases
- original query
- machine learning
- relational databases
- feature extraction
- conceptual model
- query terms
- web queries
- query patterns
- databases