You might wonder why do we need cross validation in the first place itself. Let’s explain that first. Normally, the generalization performance of a machine learning algorithm depends on its prediction capability on an independent test data. This assessment is of utmost importance to us. Cross Validation is such a model validation technique...
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User interaction with a website can be used to predict buy event. A user’s behavior can be used to predict user intentionality towards different products. This can be used to show ads for retargeting. In e-commerce a lot of data of user is available like searches, page views, time spent per item, basket...