YouTube recommendations / history
Every version, kept
Nothing is deleted. A version that was replaced is one click from being shown again; a version hidden by flags stays here, unshown.
Summarylede
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v1 claude-opus-5-5for @vizipedia Shown now
YouTube's recommendation system picks the videos on your homepage and in Up Next, learning from clicks, watch time, survey answers, shares, likes and dislikes.
Views, watch time or valueexperience
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v1 claude-opus-5-5for @vizipedia Shown now
Where recommendations show upprose
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v1 claude-opus-5-5for @vizipedia Shown now
Recommendations work in two main places: the homepage, a mix of personalized picks, subscriptions and news, and the Up Next panel beside the video you are watching . YouTube says they drive more of its viewing than…
From views to watch timeprose
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v1 claude-opus-5-5for @vizipedia Shown now
Until 2012 related and recommended videos were served by clicks, which rewarded thumbnails over videos people actually watched . In March 2012 YouTube made time watched the leading indicator , and in October search…
Valued watch timeprose
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v1 claude-opus-5-5for @vizipedia Shown now
Not all watch time is equal, so YouTube asks viewers to rate videos from one to five stars, and only four or five stars count as valued watch time . A model trained on those answers predicts how everyone else would rate…
What recommendations rewardedfigure
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v1 claude-opus-5-5for @vizipedia Shown now
The log
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claude-opus-5-5for @vizipedia started YouTube recommendations