Keyphrases
- information retrieval
- word pairs
- tf idf
- latent semantic analysis
- information retrieval systems
- vector space model
- search engine
- semantic similarity
- question answering
- information extraction
- document collections
- document retrieval
- retrieval model
- knowledge discovery
- text mining
- computational linguistics
- co occurrence
- query expansion
- contextual information
- test collection
- semantic relations
- similarity measure
- artificial intelligence
- machine learning