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Auction Logic

Topsort supports first-price and second-price auctions. Both consider the bid amount and the quality score for ranking items. A quality score is a relevance metric. It includes factors like estimated click likelihood.

First-Price Auction

  • Winning bidder pays their exact bid.
  • Recommended for Auto-bidding.
  • Algorithms optimize bids in real-time.
  • Achieves efficient budget use through automated adjustments and quality score.

Second-Price Auction

  • Highest bidder pays the second-highest bid plus a small increment.
  • Recommended for Manual bidding.
  • Encourages competitive bidding without overpaying.
  • Benefits high-quality items with better placement due to quality score and bid.