Keyphrases
- fine grained
- object centered
- external knowledge
- coarse grained
- domain knowledge
- hierarchical representation
- wordnet
- video sequences
- multimedia
- video data
- video content
- text categorization
- video frames
- document clustering
- textual information
- effective retrieval
- knowledge base
- knowledge sources
- search engine
- semantic features
- access control
- data lineage