Uncover the variables involved in Amazon Review rating and the formula for calculating Review score

Uncover the variables involved in Amazon Review rating and the formula for calculating Review score



The variables involved in review scoring are as follows: (1) Age of a review (the time difference between the submission and now) (2) Whether a review is verified purchase or unverified (3) Whether the reviewer has left 1 review -- The total number of reviews written by a reviewer (4) Length of a review (5) The number of helpful votes (6) The number of total votes The review score is calculated as follows: ((H+C1+log(min(Length,1750)) / log (350)+ X/2 × Trust + X/2 × Recency)) / ((T+C2)) H: the number of helpful votes a review received T: the number of total votes a review received X: log(1750) / log (C2) Length: length of a review Trust: If the review is verified purchase: 2 * C1, C2, and C3: Constants set differently by marketplace. In the US, C1, C2, and C3 are 13.1056, 350, and 20.04, respectively. Summary: It can be seen that the score of the review on the detail page involves a variety of comprehensive factors such as review quality, length, authenticity, etc., to ensure that buyers are provided with objective and accurate reference.




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