Keyphrases
- text retrieval
- information retrieval
- document collections
- cross language
- inverted file
- query expansion
- multimedia retrieval
- latent semantic indexing
- retrieval systems
- image retrieval
- document retrieval
- retrieval model
- retrieval quality
- automatic query expansion
- language model
- active learning
- machine learning
- learning process
- retrieval effectiveness
- decision trees
- search engine
- learning algorithm
- blind relevance feedback