Distantly-Supervised Dense Retrieval Enables Open-Domain Question Answering without Evidence Annotation.
Chen ZhaoChenyan XiongJordan L. Boyd-GraberHal Daumé IIIPublished in: EMNLP (1) (2021)
Keyphrases
- open domain question answering
- automatic annotation
- image retrieval
- automatic indexing
- information retrieval
- question answering
- machine learning
- unsupervised learning
- supervised learning
- relevance feedback
- document retrieval
- image annotation
- learning algorithm
- information retrieval systems
- feature selection
- metadata
- semi supervised
- text retrieval
- search engine
- passage retrieval
- answer extraction
- knowledge base