Keyphrases
- keywords
- text documents
- relevant documents
- web documents
- search engine
- user queries
- keyword extraction
- semantic relationships
- similar documents
- semantic information
- textual information
- web pages
- keyword search
- visual features
- wordnet
- retrieve documents
- index terms
- document set
- document retrieval
- information retrieval systems
- database
- semantic content
- query keywords
- noun phrases
- latent semantic analysis
- pseudo relevance feedback
- document collections
- co occurrence
- information retrieval