On the Competitive Ratio of the Random Sampling Auction

نویسندگان

  • Uriel Feige
  • Abraham D. Flaxman
  • Jason D. Hartline
  • Robert D. Kleinberg
چکیده

We give a simple analysis of the competitive ratio of the random sampling auction from [10]. The random sampling auction was first shown to be worst-case competitive in [9] (with a bound of 7600 on its competitive ratio); our analysis improves the bound to 15. In support of the conjecture that random sampling auction is in fact 4-competitive, we show that on the equal revenue input, where any sale price gives the same revenue, random sampling is exactly a factor of four from optimal.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Auctions with Revenue Guarantees for Sponsored Search

We consider the problem of designing auctions with worst case revenue guarantees for sponsored search. This problem differs from previous work because of ad dependent clickthrough rates which lead to two natural posted-price benchmarks. In one benchmark, the winning advertisers are charged the same price per click, and in the other, the product of the price per click and the advertiser clickabi...

متن کامل

A Comparative Study of Multi-Attribute Continuous Double Auction Mechanisms

Auctions have been as a competitive method of buying and selling valuable or rare items for a long time. Single-sided auctions in which participants negotiate on a single attribute (e.g. price) are very popular. Double auctions and negotiation on multiple attributes create more advantages compared to single-sided and single-attribute auctions. Nonetheless, this adds the complexity of the auctio...

متن کامل

A Lower Bound on the Competitive Ratio of Truthful Auctions

We study a class of single-round, sealed-bid auctions for a set of identical items. We adopt the worst case competitive framework defined by [1,2] that compares the profit of an auction to that of an optimal single price sale to at least two bidders. In this framework, we give a lower bound of 2.42 (an improvement from the bound of 2 given in [2]) on the competitive ratio of any truthful auctio...

متن کامل

EFFECTIVENESS OF SELECTED PSYCOLOGICAL INTERVENTIONS ON REDUCING COMPETITIVE STATE ANXITY OF ATHLETES

The aim of this study was to investigate the effect of selected psychological interventions on reducing the competitive State anxiety of athletes of Kermanshah .Current study was semi- experimental with pre-test and post-test and random replacement.90 people were selected by accessible sampling in two experimental and control groups. The educational package was performed through 12 ninety-minut...

متن کامل

Averaging Techniques for Competitive Auctions

We study digital-goods auctions for items in unlimited supply introduced by Goldberg, Hartline and Wright. Since no deterministic algorithms are competitive for this class of auctions, one of the central research issues is how to obtain a nice probabilistic distribution over truthful algorithms. In this paper, we introduce a rather systematic approach to this goal: Consider for example the Samp...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005