Keyphrases
- document retrieval
- image features
- language model
- document collections
- retrieval model
- information retrieval
- image classification
- image content
- cross language
- ranking functions
- spreading activation
- document indexing
- document ranking
- image representation
- text retrieval
- retrieved documents
- relevant documents
- computer vision
- probabilistic model
- object recognition
- feature vectors
- query terms
- retrieval effectiveness
- learning to rank
- pseudo relevance feedback
- databases
- inverted index
- keywords
- digital libraries