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Companies: Apple, Microsoft Difficulty: Easy Frequency:  Medium Question How do you deal with a rare feature value? Answer There are a few ways we can handle features that have a rare…

Companies: Apple Difficulty: Easy Frequency:  Medium Question Can you explain k-fold cross validation? Answer Cross-validation tends to be used as it can give you a less biased model accuracy. The algorithm…

Companies: Amazon, Apple, Facebook, Google, Netflix Difficulty: Easy Frequency:  High Question What are some regulariazation methods you are aware of? Answer Modified from Linear Regression. The two most popular regularization techniques…