All Questions
6 questions
8
votes
1
answer
812
views
How to use SMOTE in Java Weka API?
I am trying to build classification model using Java Weka API. My training dataset have class imbalance problems. For this reason, I want to use SMOTE to reduce class imbalance problem. But, I do not ...
- 83
8
votes
2
answers
540
views
How do I use a custom stopwords filter in the Java Weka API?
I am using the Java Weka API to build a classification model. I can use the builtin stopwords filter. However, I need to use a custom filter for my problem. I do not know how to use a custom stopwords ...
- 158
10
votes
2
answers
1k
views
How do i calculate prediction probability of a class in Java Weka Api?
I am developing a prediction model using Java Weka api. I can predict class for the new instance using the following code:
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- 348
1
vote
0
answers
55
views
Processed data cannot build Naive Bayes Classifier model
Having preprocessed data using weka supervised cfssubseteval forward and backward selection, the decision tree model builds and makes prediction well, but naive Bayes do not recognize the same Arff ...
- 21
2
votes
1
answer
4k
views
is there any way to plot ROC curves from weka
i am using some algorithms from weka . i was willing to plot some algorithms' roc curve for comparison . Is it possible and how ?
- 123
-1
votes
1
answer
2k
views
Simple Weka classification example in Java gives inconsistent answers
I have the following simple weka code to use a simple decision tree, train it, and then make predictions.
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- 2,013