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BiasMedium

Twitter Recommender System Amplified Right-Leaning Tweets

Occurred
Feb 10, 2016
Published
Aug 1, 2020
Source
AI Incident Database

Summary

Twitter’s “Home” timeline algorithm was revealed by its internal researchers to have amplified tweets and news of rightwing politicians and organizations more than leftwing ones in six out of seven studied countries.

Developers

  • Twitter

Deployers

  • Twitter

Harmed parties

  • Twitter left-leaning politicians
  • Twitter left-leaning news organizations
  • Twitter left-leaning users
  • X (Twitter) users

Classification

Category confidence: 90%
Severity confidence: 85%

Rationale: Algorithmic bias in content amplification causing political skew without direct physical harm or legal action.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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