Keyphrases
- information retrieval
- information retrieval systems
- citation analysis
- database
- inverted file
- text retrieval
- document retrieval
- information extraction
- language model
- search engine
- question answering
- retrieval systems
- text mining
- retrieval model
- document collections
- vector space model
- index structure
- test collection
- retrieval effectiveness
- b tree
- language modeling
- information filtering
- latent semantic indexing
- multi dimensional
- artificial intelligence