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Tell me about the concept of cross-validation and its significance in machine learning?

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Answers

Anonymous

6 days ago
3.8Strong
The cross-validation concept aims to divide dataset into N subsets. The model is trained N times, each time we will use N-1 subsets for training and the remaining one for testing, the test data will be changed in every round. This method is useful to avoid overfitting 

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Interview question asked to Machine Learning Engineers interviewing at Okta, Shopee, Audible and others: Tell me about the concept of cross-validation and its significance in machine learning?.