Keyphrases
- learning to rank
- multiple annotators
- ranking functions
- low quality
- information retrieval
- loss function
- ground truth
- evaluation measures
- ranking svm
- active learning
- direct optimization
- document retrieval
- evaluation metrics
- learning to rank algorithms
- collaborative filtering
- query dependent
- supervised learning
- data sets
- retrieval systems
- test collection
- search engine
- similarity measure
- high quality
- ranking algorithm