Keyphrases
- automatic identification
- text classification
- stop words
- preprocessing step
- tf idf
- text categorization
- text documents
- feature selection
- information gain
- bag of words
- naive bayes
- text mining
- n gram
- machine learning
- labeled data
- knn
- preprocessing
- term frequency
- information retrieval
- k nearest neighbor
- image classification
- unlabeled data
- semi supervised
- knowledge discovery
- training data