A good recommendation has three aspects:The emphasis on credibility is insightful. Recommendations that are too obscure may be perceived as low quality because the user cannot easily and quickly evaluate them.
familiarity - to help us gain trust in the recommender
novelty - without new music, the recommendation is pointless
relevance - the recommended music has to match my taste
This is just one of many examples of the yawning gap between predictive accuracy -- accurately predicting what people want to buy next -- and perceived quality -- the usefulness of the recommendations to users.
2 comments:
Thank you Greg, thank you Paul! This post just crystalized a thought that I've been chasing for about 8 years now, and it is not unrelated to the discussion Paul and I were having a few weeks ago right before ISMIR. Give me a week or two to write it up, but I would be interested in hearing y'alls reactions once I do.
This is why I'm surprised we don't see more services that let people push music to their friends - like Last.fm's "Tell a friend about this artist" - or open source players that let people push out recommendations using a standard playlist format. Paul and Lucas Gonze talk about this here:
http://blog.gonze.com/2007/05/16/portable-song-ids-and-music-influencer-networks/
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