Keyphrases
- domain adaptation
- language model
- language modeling
- probabilistic model
- n gram
- cross domain
- information retrieval
- semi supervised
- document retrieval
- retrieval model
- multiple sources
- sentiment classification
- labeled data
- query expansion
- semi supervised learning
- test collection
- transfer learning
- document classification
- test data
- target domain
- co training
- document level
- relevance model
- search engine