Keyphrases
- information retrieval
- information extraction
- information retrieval systems
- search engine
- relevant documents
- information access
- language model
- query expansion
- topic distillation
- retrieval model
- text mining
- information filtering
- effective retrieval
- vector space model
- language modeling
- probability ranking principle
- web searching
- term weighting
- multimedia
- text retrieval
- neural network
- test collection
- collaborative filtering