New ask Hacker News story: Ask HN: Why is making a good recommendation system for YouTube hard?

Ask HN: Why is making a good recommendation system for YouTube hard?
14 by nassimslab2 | 14 comments on Hacker News.
YouTube has been criticized for their recommendation algorithm which can often time recommend the same thing over and over. This got me thinking about what makes it that hard to build a good recommendation system? On my side, I'm currently working on a new way to do so. I called it Channel Tree. The goal is to start out with a list of YouTube channels provided by the user. Then my software will go look for the channel section of each channels to look for other channels there. This has the effect of building a deep tree of different channels related to each other through the channel section. The user will only have to specify how many layers of the tree he would like to have so the algorithm can stop there. Finally, you'll only have to look at the tree and look out for channels that may seem interesting based on who's the parent in the tree.

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