At TikTok, we treat privacy as our first priority in our product design and implementation. Privacy is not just about regulation compliance, but also about a more trusted way to enable technology innovation by respecting users’ privacy choices! As a part of TikTok Privacy & Security group, the AI Privacy team provides solutions to preserve privacy in all AI-powered experiences, for billions of TikTok users. AI is a critical domain to honor our privacy commitments to users. Nearly every feature at TikTok depends on AI, and AI-related usage of data directly impacts the product experience for all of our users. In the AI domain, we are facing challenges of an ecosystem with multiple data processing systems, peta-byte scale training data pipelines, explaining complex AI algorithms and rapid development cycles. To fulfill our commitment, we will build privacy aware infrastructure across feature engineering, training data generation, model training, as well as product usages of AI. Our system...