Ratings and Reviews server

review_average should be calculated as Wilson score

Bug #1567420 reported by Stuart Langridge
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Ratings and Reviews server
Confirmed
Undecided
Unassigned

Bug Description

As per https://wiki.ubuntu.com/SoftwareCenter#top-rated, the review_average for an app should be calculated as a weighted score in order that apps with a single 5-star rating aren't seen as best. (http://www.evanmiller.org/how-not-to-sort-by-average-rating.html explains in more detail.)

Revision history for this message
Michael Nelson (michael.nelson) wrote :

Thanks Stuart. Looks like it was always intended but never prioritised :/

For whoever picks this up: the relevant code calculating the simple average is currently in src/core/models.py:ObjectWithReviewStats.update_stats()

Changed in rnr-server:
status: New → Confirmed
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