How Amazon can reduce the discrimination in the rating

There are many type of discrimination occurs in the recommendation system, sometime its content and sometime it’s products or service which tends to create Bias in our buying pattern. YouTube would only recommend you top rated or most view content irrespective  of its relevance. I would suggest to follow Black and White rule, treat every purchase as 5 start  rating unless it is revised by Buyer. This way we would be able to  five consistent rating average including all the purchases made on the product .

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