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An update to dislikes on YouTube and it’s use in the recommender system
November 11, 2021
Some recommender systems rely on explicit feedback like user ratings or likes and dislikes. YouTube recently decided to not show the count of dislikes on its website, but continue to use it for its recommender system.
We’re making the dislike counts private across YouTube, but the dislike button is not going away. This change will start gradually rolling out today.
Viewers can still dislike videos to tune their recommendations and privately share feedback with creators.
I am the founder of Recommender-Systems.com and head of the Intelligent Systems Group (ISG) at the University of Siegen, Germany https://isg.beel.org. We conduct research in recommender-systems (RecSys), personalization and information retrieval (IR) as well as on automated machine learning (AutoML), meta-learning and algorithm selection. Domains we are particularly interested in include smart places, eHealth, manufacturing (industry 4.0), mobility, visual computing, and digital libraries.
We founded or maintain, among others, LensKit-Auto, Darwin & Goliath, Mr. DLib, and Docear, each with thousand of users; we contributed to TensorFlow, JabRef and others; and we developed the first prototypes of automated recommender systems (AutoSurprise and Auto-CaseRec) and Federated Meta Learning (FMLearn Server and Client).