Data Science Asked by Ananthakrishnan M A on March 12, 2021
I have a text dataset similar to newsgroup dataset, the problem with the dataset is that it is highly imbalanced. So is there any readily built library that will do upsampling or downsampling with a function call?
from imblearn.over_sampling import ADASYN, SMOTE, RandomOverSampler
from imblearn.under_sampling import NearMiss, RandomUnderSampler
ros = RandomOverSampler(random_state=777)
X_ROS, y_ROS = ros.fit_sample(testing_tfidf, testing_target)
smt = SMOTE(random_state=777, k_neighbors=1)
rus = RandomUnderSampler(random_state=777)
Good article for reference
Correct answer by Adhira Deogade on March 12, 2021
Here is a good blog for handling this in R. Class imbalance
Answered by oaksandbrooms on March 12, 2021
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