SPIN Unprocessed October 28, 2026 ai_technology research
Reinforcement Learning for Controller Parameters in the Auto-Bidding System at Pinterest
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arXiv:2610.33248v1 Announce Type: new Abstract: Auto-bidding systems in online advertising must balance competing objectives-maximizing budget delivery while minimizing cost per action-across heterogeneous campaigns under non-stationary market conditions. This trade-off evolves over campaign lifespans: early on, cost optimization dominates when budgets roll over; near deadlines, budget delivery becomes urgent. While PID controllers are widely used in production for their stability and interpreta
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