Newsfeed Integrity / Misinformation Detection

Let me walk you through how I'd design a newsfeed integrity system for detecting and mitigating misinformation at production scale. I'll go stage by stage – business and ML objectives, high-level design, data and feature strategy, embeddings, pipeline architecture including modeling and training details, infrastructure, evaluation, and robustness. This is one of the most challenging and consequential ML problems given the adversarial nature, free speech considerations, and societal impact.