Keyphrases
- learning to rank
- balancing exploration and exploitation
- ranking functions
- information retrieval
- loss function
- ranking svm
- document retrieval
- evaluation measures
- collaborative filtering
- learning to rank algorithms
- query dependent
- reinforcement learning
- direct optimization
- retrieval systems
- evaluation metrics
- search engine
- data mining
- feature extraction
- directly optimize
- e learning
- language model
- multi class
- digital libraries