Incident 168: Collaborative Filtering Prone to Popularity Bias, Resulting in Overrepresentation of Popular Items in the Recommendation Outputs

Description: Collaborative filtering prone to popularity bias, resulting in overrepresentation of popular items in the recommendation outputs.


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Alleged: Facebook , LinkedIn , YouTube , Twitter and Netflix developed and deployed an AI system, which harmed Facebook users , LinkedIn users , YouTube users , Twitter Users and Netflix users.

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Sean McGregor, Khoa Lam


A "variant" is an incident that shares the same causative factors, produces similar harms, and involves the same intelligent systems as a known AI incident. Rather than index variants as entirely separate incidents, we list variations of incidents under the first similar incident submitted to the database. Unlike other submission types to the incident database, variants are not required to have reporting in evidence external to the Incident Database. Learn more from the research paper.