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A comment on Ask HN: Why is making a good recommendation system for YouTube hard?. Parent comment

Re:Ask HN: Why is making a good recommendation system for Yo... by DanBC on Wednesday December 23, 2020 @01:29PM (#25520506)
Thumbs up / down has no impact on what videos Youtube pushes.

Not interested and don't recommend channel only removes that channel. It doesn't do anything to remove all the other similar content, and it doesn't do anything to add more relevant content.

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Re:Ask HN: Why is making a good recommendation system for Yo... by Jabbles on Wednesday December 23, 2020 @02:16PM (#25521006)
Please cite a source. It seems like it would be an obvious signal to use in recommendations.
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