Keyphrases
- text classification
- text categorization
- bag of words
- feature selection
- text mining
- document classification
- sentiment analysis
- labeled data
- machine learning
- semantic features
- naive bayes
- n gram
- text documents
- data cleaning
- neural network
- weighted sum
- multi label
- higher level
- knn
- hierarchical structure
- lower level
- active learning
- natural language
- real world