Keyphrases
- learning to rank
- ranking functions
- loss function
- information retrieval
- learning to rank algorithms
- evaluation metrics
- document retrieval
- direct optimization
- ranking svm
- query dependent
- collaborative filtering
- balancing exploration and exploitation
- relevance judgments
- evaluation measures
- machine learning
- test collection
- supervised learning
- active learning
- retrieval systems
- benchmark datasets
- multi class
- pairwise
- learning algorithm
- data sets