Sentiment Analysis of Afghanistan Crisis using Twitter

[ScottF]

I wouldn’t worry about using NB here at all, honestly.

To deal with class imbalance, check out this thread (and the threads linked within it) that give you several options:

XGBoost Predictor

I’ve created a model for imbalanced data using SMOTE Node and learned it using XGBoost Tree Ensemble method, when I perform partition (CV) to see how my model predicts I get fairly good result, up to 99.998% accurate. However, when I create a separate workflow and predict there, using XGBoost predictor, I can’t get any proper classification even on the dataset that I used for learning, which makes no sense. Does anyone ever had any similar issues? Any help is much appreciated. I use Model write…