Keyphrases
- user interests
- user profiles
- search engine
- user profiling
- user behavior
- user intent
- web personalization
- query logs
- query language
- web search engines
- collaborative filtering
- query evaluation
- range queries
- database
- query processing
- personalized recommendation
- personalized search
- user preferences
- website
- query reformulation
- knowledge base
- web pages
- collective knowledge