Unsupervised Corpus Aware Language Model Pre-training for Dense Passage Retrieval.
Luyu GaoJamie CallanPublished in: ACL (1) (2022)
Keyphrases
- language model
- passage retrieval
- document retrieval
- language modeling
- document level
- retrieval model
- query expansion
- speech recognition
- statistical machine translation
- document ranking
- supervised learning
- n gram
- information retrieval
- probabilistic model
- relevance model
- multiword
- pseudo relevance feedback
- sentence retrieval
- test collection
- training set
- translation model
- feature selection
- document representation
- semi supervised
- vector space model
- text retrieval
- query terms
- question answering
- smoothing methods
- keywords