Keyphrases
- information retrieval
- cloud computing
- search engine
- information extraction
- information retrieval systems
- text retrieval
- document retrieval
- text mining
- query expansion
- document collections
- retrieval effectiveness
- relevant documents
- information access
- learning algorithm
- language modeling
- vector space model
- language processing
- learning to rank
- question answering
- language model
- relevance feedback
- genetic algorithm