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Data Scientist Interview Question: How would you validate a predictive model?

How would you validate-test a predictive model? Why evaluate/test model at all? Evaluating the performance of a model is one of the most important stages in predictive modeling, it indicates how successful model has been for the dataset. It enables to tune parameters¬†and in the end test the tuned model against a fresh cut of… Read More Data Scientist Interview Question: How would you validate a predictive model?