
01 / AI Systems
Retrieval & Recommendation at Scale
Large-scale recommendation begins well before ranking: it depends on what a system retrieves, when it retrieves, and how efficiently it represents the corpus. My work develops production retrieval methods that combine multimodal representation learning, semantic identifiers, causal decision-making, and bias-aware exploration. The emphasis is on systems that remain measurable and dependable at web scale, from visual-shopping retrieval and cold-start discovery to generative recommendation and causal triggers.


