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Spotify’s Discover Weekly: How machine learning finds new music

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Re: Spotify’s Discover Weekly: How machine learning finds new music

#2
Pretty cool to see them go after the cold start problem with audio models. Often measuring the impact of having cold start vs. not is very difficult because it only affects the long tail of tracks at first, but eventually it could change the dynamics of discovery in the system.

Re: Spotify’s Discover Weekly: How machine learning finds new music

#3
Can't they just make great recommendations based on:

People who have music X on their playlist also have Y a lot. Person A listens to X but not Y. Let's make them discover Y.

You could just build a topology of songs like that and then recommend songs to user A if they are topologically close to the songs he likes.

EDIT: Read the article now :D they do that and it's called Collaborative Filtering.

Re: Spotify’s Discover Weekly: How machine learning finds new music

#6
> Unlike Netflix, though, Spotify doesn’t have those stars with which users rate their music. Instead, Spotify’s data is implicit feedback 

I wish they kept it simpler with ratings, and explicit instead of implicit. The discovery weekly playlists are absolutely horrible for me to the point that I don't even bother checking them nowadays.

What works better for me for discovering new music with spotify is right clicking on an existing playlist and then "Create Similar Playlist" - that gives way more control over what kind of genre/style should the playlist consist of.

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