Keyphrases
- semantic features
- query generation
- text classifiers
- semantic information
- text classification
- visual features
- language model
- query formulation
- low level features
- query expansion
- wordnet
- statistical measures
- semantic similarity
- information retrieval
- information discovery
- feature set
- document clustering
- learning process
- active learning
- training data
- text documents
- databases
- patent retrieval
- low level