ratingSums
ratingSums is a simple numerical aggregate used in rating systems to summarize the total of individual ratings. It is often used as a complement to the average rating, providing a quick sense of overall volume and intensity of ratings for an item or a user.
Definition and scope: For a set of ratings {r1, r2, ..., rn} where each rj lies within a
Example: If an item receives ratings 4, 5, 3, and 2, the ratingSum is 14, while the
Applications and considerations: ratingSums are used to rank items by total received rating values, to feature
Variants and extensions: Weighted ratingSum incorporates confidence or voter reliability through weights. Normalized or per-item per-user