Keyphrases
- text retrieval
- multiple choice questions
- information retrieval
- query expansion
- video data
- video sequences
- cross language
- image retrieval
- document retrieval
- retrieval model
- retrieval quality
- document collections
- video content
- retrieval systems
- inverted file
- multiple choice
- open ended questions
- multimedia
- video retrieval
- multimedia data
- automatic query expansion
- key frames