Keyphrases
- document retrieval
- language model
- document collections
- information retrieval
- retrieval model
- ranking functions
- text retrieval
- query processing
- cross language
- learning to rank
- document indexing
- relevant documents
- relevance feedback
- passage retrieval
- pseudo relevance feedback
- retrieved documents
- query independent
- retrieval strategies
- information extraction
- data sets
- focused retrieval