Its incremental approach retrained only embeddings affected by fresh events, reporting a 6% Recall@K increase and a 1% lift in buyer–seller contacts in an A/B test.
The subsequent near-real-time architecture processes clickstream in 20-minute windows: CPU preparation writes windows to a queue, GPU workers train on the oldest pending work, and updated recommendations are served through Redis. The team says the redesign consolidated the operational path and reduced memory consumption while retaining the legacy model as a daily initialization source.