Keyphrases
- retrieval framework
- retrieval model
- video retrieval
- retrieval systems
- information retrieval systems
- relevance feedback
- document retrieval
- video database
- information retrieval
- document collections
- user queries
- retrieval process
- matching scheme
- action recognition
- vector space
- web documents
- test collection
- query terms
- text retrieval
- video data
- digital libraries
- keywords
- high level