Review评分涉及变量（亚马逊）

亚马逊Review评分涉及变量如下：

(1)时长--Age of a review (the time difference between the submission and now)

(2)是否存在交易-- Whether a review is verified purchase or unverified

(3)评论人数是否为1 --The total number of reviews written by a reviewer

(4)评价长度-- Length of a review

(5)投票支持数量--The number of helpful votes

(6)总投票数--The number of total votes

Review分值计算公式如下：

((H+C1+log(min(Length,C2*5)) / log (C2)+ X/2 × Trust + X/2 × Recency)) / (T+C3))

H: 认为有帮助投票数--the number of helpful votes a review received

T: 评论收到的总投票数--the number of total votes a review received

X: log(C2*5) / log (C2)

Length: 评论长度--length of a review