Keyphrases
- semantic gap
- convolutional neural network
- low level features
- low level
- video retrieval
- semantic information
- image content
- visual features
- visual content
- image annotation
- face detection
- multimedia databases
- semantic concepts
- neural network
- domain knowledge
- high level semantics
- high level
- information retrieval
- metadata
- multimedia
- key frames
- relevance feedback
- multiscale