Keyphrases
- weighting scheme
- tf idf
- ranking algorithm
- weighting schemes
- information retrieval
- text categorization
- retrieval model
- vector space model
- text documents
- term frequency
- term weighting
- visual words
- web search
- high dimensional
- multiscale
- term weighting schemes
- information retrieval systems
- data mining
- knowledge discovery
- object recognition
- term weights