Keyphrases
- term frequency
- text categorization
- retrieval model
- tf idf
- text classification
- bag of words
- average precision
- term weighting
- document length normalization
- text documents
- term weights
- document frequency
- document representation
- okapi bm
- ir models
- inverse document frequency
- text mining
- retrieval effectiveness
- query terms
- test collection
- image classification
- evaluation metrics
- document retrieval
- term weighting schemes
- probabilistic model
- document clustering
- divergence from randomness
- co occurrence
- language model
- query expansion
- n gram
- image content
- vector space
- language modeling
- ranked list