K nearest neighbors or KNN Algorithm is a simple algorithm which uses the entire dataset in its training phase. Whenever a prediction is required for an unseen data instance, it searches through the entire training dataset for k-most similar instances and the data with the most similar instance is finally returned as the prediction.

In this Video on KNN algorithm, you will understand how the KNN algorithm works and how it can be implemented by using Python. Algorithm suggests that if you’re similar to your neighbours, then you are one of them.

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