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» Online auctions and generalized secretary problems
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WINE
2010
Springer
168views Economy» more  WINE 2010»
13 years 3 months ago
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 competit...
Elias Koutsoupias, George Pierrakos
CRV
2009
IEEE
153views Robotics» more  CRV 2009»
13 years 12 months ago
Optimal Online Data Sampling or How to Hire the Best Secretaries
The problem of online sampling of data, can be seen as a generalization of the classical secretary problem. The goal is to maximize the probability of picking the k highest scorin...
Yogesh Girdhar, Gregory Dudek
SODA
2007
ACM
99views Algorithms» more  SODA 2007»
13 years 6 months ago
Matroids, secretary problems, and online mechanisms
We study a generalization of the classical secretary problem which we call the “matroid secretary problem”. In this problem, the elements of a matroid are presented to an onli...
Moshe Babaioff, Nicole Immorlica, Robert Kleinberg
SODA
2012
ACM
249views Algorithms» more  SODA 2012»
11 years 7 months ago
Improved competitive ratio for the matroid secretary problem
The Matroid Secretary Problem, introduced by Babaioff et al. (2007), is a generalization of the Classical Secretary Problem. In this problem, elements from a matroid are presente...
Sourav Chakraborty, Oded Lachish
ICALP
2009
Springer
14 years 5 months ago
Algorithms for Secretary Problems on Graphs and Hypergraphs
We examine several online matching problems, with applications to Internet advertising reservation systems. Consider an edge-weighted bipartite graph G, with partite sets L, R. We...
Martin Pál, Nitish Korula