Keyphrases
- document frequency
- text categorization
- retrieved documents
- pseudo relevance feedback
- tf idf
- information gain
- term selection
- term frequency
- feature selection
- document representation
- n gram
- query expansion
- text classification
- retrieval effectiveness
- vector space model
- knn
- information retrieval
- average precision
- text documents
- mutual information
- document retrieval
- language model
- term weighting
- document clustering
- retrieval systems
- text mining
- bag of words
- relevance feedback
- k nearest neighbor
- image registration
- training data
- decision trees
- information retrieval systems