AdWords and Generalized On-line Matching

  • Authors:
  • Aranyak Mehta;Amin Saberi;Umesh Vazirani;Vijay Vazirani

  • Affiliations:
  • Aranyak Mehta;Amin Saberi;Umesh Vazirani;Vijay Vazirani

  • Venue:
  • FOCS '05 Proceedings of the 46th Annual IEEE Symposium on Foundations of Computer Science
  • Year:
  • 2005

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Abstract

How does a search engine company decide what ads to display with each query so as to maximize its revenue? This turns out to be a generalization of the online bipartite matching problem. We introduce the notion of a tradeoff revealing LP and use it to derive two optimal algorithms achieving competitive ratios of 1 - 1/e for this problem.