Keyphrases
- query expansion
- information retrieval systems
- image database
- pseudo relevance feedback
- relevant documents
- information retrieval
- image features
- language model
- relevance feedback
- retrieval effectiveness
- language modeling
- text based image retrieval
- image retrieval
- ad hoc retrieval
- image collections
- image annotation
- image classification
- image understanding
- text retrieval
- retrieval model
- interactive query expansion
- automatic query expansion
- improving search
- vocabulary mismatch
- trec genomics track