add exception type for classification specific errors
Add ark-tweet-nlp dependency
Add preprocessing with Twitter NLP
Add preprocessing with Twitter NLP
load feature list, train classifier
revert some changes
Refactor preprocessing
Refactor preprocessing
refactor SentimentClassifier by moving CSV parsing of training data into new class
fix imports
fix classification
add basic unit tests for SentimentClassifier
Add normalization in preprocessing
add source code documentation
Add POS tagger
Merge remote-tracking branch 'origin/classifier' into classifier
Add POS tagger
Add gate twitter model file
Add documentation in preprocessor
add evaluation capabilities to SentimentClassifier