Keyphrases
- text categorization
- reuters corpus
- information retrieval
- text classification
- feature selection
- test collection
- question answering
- knn
- retrieval effectiveness
- text classifiers
- information gain
- k nearest neighbor
- naive bayes
- multi label
- automated text categorization
- term frequency
- feature weighting
- text documents
- semi supervised learning
- pseudo relevance feedback
- automatic text categorization
- relevance feedback
- machine learning
- tf idf
- information extraction
- ad hoc retrieval
- high dimensional
- document frequency
- multi instance multi label learning
- similarity measure
- feature selections