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SODA
2012
ACM
225views Algorithms» more  SODA 2012»
13 years 8 months ago
Approximating rooted Steiner networks
The Directed Steiner Tree (DST) problem is a cornerstone problem in network design. We focus on the generalization of the problem with higher connectivity requirements. The proble...
Joseph Cheriyan, Bundit Laekhanukit, Guyslain Nave...
SODA
2012
ACM
200views Algorithms» more  SODA 2012»
13 years 8 months ago
Optimal crowdsourcing contests
We study the design and approximation of optimal crowdsourcing contests. Crowdsourcing contests can be modeled as all-pay auctions because entrants must exert effort up-front to e...
Shuchi Chawla, Jason D. Hartline, Balasubramanian ...
SODA
2012
ACM
173views Algorithms» more  SODA 2012»
13 years 8 months ago
Resource augmentation for weighted flow-time explained by dual fitting
We propose a general dual-fitting technique for analyzing online scheduling algorithms in the unrelated machines setting where the objective function involves weighted flow-time...
S. Anand 0002, Naveen Garg, Amit Kumar
SODA
2012
ACM
209views Algorithms» more  SODA 2012»
13 years 8 months ago
Simple and practical algorithm for sparse Fourier transform
We consider the sparse Fourier transform problem: given a complex vector x of length n, and a parameter k, estimate the k largest (in magnitude) coefficients of the Fourier transf...
Haitham Hassanieh, Piotr Indyk, Dina Katabi, Eric ...
SODA
2012
ACM
226views Algorithms» more  SODA 2012»
13 years 8 months ago
On the hardness of pricing loss-leaders
Consider the problem of pricing n items under an unlimited supply with m buyers. Each buyer is interested in a bundle of at most k of the items. These buyers are single minded, wh...
Preyas Popat, Yi Wu