Keyphrases
- object categories
- category specific
- broad categories
- semantic categories
- wikipedia categories
- category labels
- hierarchical structure
- classify documents
- object detection
- web directories
- decision trees
- hierarchical structures
- reinforcement learning
- automatically classify
- initial state
- state transitions
- database
- databases
- real world
- training documents
- artificial intelligence
- entity ranking
- spatial reasoning
- feature selection
- text categorization
- text classification
- hidden markov models
- object recognition
- image sequences