On the Competitive Ratio of Online Sampling Auctions

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On the Competitive Ratio of Online Sampling Auctions
We study online profit-maximizing auctions for digital goods with adversarial bid selection and uniformly random arrivals. Our goal is to design auctions that are constant competitive with F(2) ; in this sense our model lies at the intersection of prior-free mechanism design and secretary problems. We first give a generic reduction that transforms any offline auction to an online one, with only a loss of a factor of 2 in the competitive ratio; we then present some natural auctions, both randomized and deterministic, and study their competitive ratio; our analysis reveals some interesting connections of one of these auctions with RSOP, which we further investigate in our final section.
Elias Koutsoupias, George Pierrakos
Added 15 Feb 2011
Updated 15 Feb 2011
Type Journal
Year 2010
Where WINE
Authors Elias Koutsoupias, George Pierrakos
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