基于这个 url,我找到了Bayesian Rating,它很好地解释了评级模型,我想总结一下公式,让任何人更容易实现 SQL 语句。如果我这样总结公式,这是否正确?
avg_num_votes = Sum(votes)/Count(votes) * Count(votes)
avg_rating = sum(votes)/count(votes)
this_num_votes = count(votes)
this_rating = Positive_votes - Negative_votes
加思