Keyphrases
- term frequency
- tf idf
- text categorization
- text classification
- average precision
- retrieval model
- term weighting
- bag of words
- inverse document frequency
- document frequency
- text documents
- term weights
- document representation
- okapi bm
- query terms
- vector space model
- probabilistic retrieval model
- information gain
- information extraction
- semantic similarity
- data analysis
- document retrieval
- action recognition
- query expansion
- knn