Keyphrases
- cost sensitive
- learning to rank
- ranking svm
- directly optimize
- ranking functions
- multi class
- misclassification costs
- information retrieval
- cost sensitive learning
- binary classification
- cost sensitive classification
- loss function
- active learning
- evaluation measures
- class distribution
- naive bayes
- collaborative filtering
- class imbalance
- test collection
- retrieval systems
- document retrieval
- uncertainty sampling
- web search
- machine learning
- learning algorithm
- decision trees
- recommender systems
- text classification