Keyphrases
- database
- pattern recognition
- automatic classification
- response time
- query processing
- pattern classification
- classification accuracy
- classification method
- decision trees
- query evaluation
- classification systems
- data structure
- feature extraction
- training set
- query expansion
- classification algorithm
- life cycle
- training samples
- model selection
- text classification
- image classification
- classification models
- preprocessing
- support vector
- result set
- query suggestion
- retrieval systems
- decision rules
- user queries
- supervised learning
- relevance feedback
- feature vectors
- keywords
- machine learning
- neural network
- databases