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