Great article. The limit doesn't seem to be in the algorithm (as this article makes clear), it's the ability of a 1 through 5 star system to accurately reflect a person's feelings about a movie.
While algorithms for predicting your upcoming ratings based on your previous ratings may not be able to improve...surely there are some creative ways to re-think the entire system:
Two obvious approaches would be to rate on multiple scales (funniness, intellectual weight, 'light'-ness, etc.), and to include a comment-tracking system alongside the simple rating system to provide a better more complex picture of the film (as Reddit, and YCnews do).
While algorithms for predicting your upcoming ratings based on your previous ratings may not be able to improve...surely there are some creative ways to re-think the entire system:
Two obvious approaches would be to rate on multiple scales (funniness, intellectual weight, 'light'-ness, etc.), and to include a comment-tracking system alongside the simple rating system to provide a better more complex picture of the film (as Reddit, and YCnews do).