Question answering on lecture videos: a multifaceted approach.
Jinwei CaoJay F. Nunamaker Jr.Published in: JCDL (2004)
Keyphrases
- question answering
- lecture videos
- user experience
- hybrid learning
- natural language processing
- learning objects
- keywords
- visual cues
- learning materials
- information retrieval
- passage retrieval
- distance learning
- multimedia
- video analysis
- high definition
- information extraction
- natural language
- natural language questions
- question answering systems
- qa clef
- video segments
- wordnet
- multi modal
- knowledge base