Keyphrases
- part of speech
- metadata
- collaborative tagging
- information retrieval
- keywords
- user contributed
- rfid tags
- collaborative tagging systems
- semantically enhanced
- music recommendation
- asynchronous communication
- social bookmarking
- social tagging
- web resources
- genetic algorithm
- databases
- social tagging systems
- image search
- image retrieval
- digital libraries
- case study
- tagged images