Emory University at TREC LiveQA 2016: Combining Crowdsourcing and Learning-To-Rank Approaches for Real-Time Complex Question Answering.
Denis SavenkovEugene AgichteinPublished in: TREC (2016)
Keyphrases
- question answering
- learning to rank
- information retrieval
- question answering systems
- information extraction
- natural language processing
- natural language
- document retrieval
- relevance judgments
- passage retrieval
- evaluation metrics
- ranking functions
- evaluation measures
- named entities
- loss function
- relation extraction
- user feedback
- test collection
- search engine
- retrieval effectiveness
- document collections
- query expansion
- information retrieval systems
- text mining
- collaborative filtering
- pairwise