Keyphrases
- document retrieval
- language model
- retrieval model
- document collections
- information retrieval
- learning to rank
- text retrieval
- relevance feedback
- cross language
- passage retrieval
- ranking functions
- document indexing
- document ranking
- spreading activation
- relevant documents
- retrieved documents
- document image retrieval
- retrieval strategies
- pseudo relevance feedback
- inverted index
- query terms
- multimedia