Weakly hierarchical lasso based learning to rank in best answer prediction.
Qiongjie TianBaoxin LiPublished in: ASONAM (2016)
Keyphrases
- learning to rank
- ranking functions
- loss function
- information retrieval
- prediction accuracy
- evaluation measures
- feature selection
- document retrieval
- collaborative filtering
- ranking svm
- direct optimization
- query dependent
- learning to rank algorithms
- evaluation metrics
- relevance judgments
- test collection
- pairwise
- multi task