In first-price auctions, the winning bidder pays their exact submitted bid. DSPs deploy bid-shading algorithms to calculate the minimum clearing price necessary to win without overpaying.
1. Bid Shading Machine Learning Architecture
- Historical Win-Rate Curves: Predicting auction clearance thresholds based on domain, ad slot, time of day, and geographic region.
- Floor Price Detection: Estimating publisher soft and hard price floors to prevent submitting underbid bids that forfeit impressions.
- Advertiser Surplus Optimization: Saving 15–22% of total media spend while maintaining equivalent impression volume and conversion rates.