Keyphrases
- multiple users
- user experience
- targeted advertising
- mobile internet
- physical location
- user requests
- personalized services
- user interface
- navigational behavior
- end users
- user interaction
- content providers
- metadata
- user contributed
- user access
- content adaptation
- user satisfaction
- recommender systems
- search interface
- multimedia content
- multimedia data
- helping users
- user defined
- web documents
- news topics
- multimedia
- search engine