Questions tagged [categorical-encoding]

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5 votes
1 answer
3k views

Target encoding with KFold cross-validation - how to transform test set?

Let's say I have a categorical feature (cat): ...
Xaume's user avatar
  • 182
2 votes
2 answers
2k views

Why is count encoding effective in improving accuracy? [duplicate]

Can someone please explain why/how Count encoding of categorical features improve accuracy in classification when compared to simply label encoding them ? I found one explanation in kaggle " ...
Bharathi's user avatar
  • 277