Learning to Rank Answers for Definitional Question Answering.
Shiyu WuXipeng QiuXuanjing HuangJunkuo CaoPublished in: CCL (2015)
Keyphrases
- learning to rank
- definitional question answering
- ranking functions
- information retrieval
- loss function
- probabilistic model
- document retrieval
- ranking svm
- answer extraction
- pattern matching
- evaluation measures
- direct optimization
- collaborative filtering
- query dependent
- test collection
- supervised learning
- question answering
- language model
- question answering systems
- learning to rank algorithms
- correct answers
- ranking models
- web search engines
- directly optimize