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Data leakage
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179.
Definition of Data Leakage
easy
What is data leakage in machine learning?
A
When information from outside the training set inappropriately influences model training or evaluation
B
When training data is collected from a different distribution than the deployment environment
C
When the same features are used in both training and evaluation datasets without proper feature normalization
D
When the training set is too small relative to the model's complexity causing poor generalization
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