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| Oct 9, 2017 | » | Bayesian Rating
1 min; updated Mar 12, 2022
Allows us to weight by review population size. Let \(n_i\) be the number of reviews that item \(i\) gets, and let \(r_i\) be the naive average rating of item \(i\) Let \(N\) be the total number of reviews across brands, i.e. \(N = \sum_{i} n_i \) Let \(R\) be the average rating over all items across brands, i.e. \(R = \frac{1}{N} \sum_{i} n_i r_i \)... |