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APPROX
2010
Springer
154views Algorithms» more  APPROX 2010»
13 years 10 months ago
The Checkpoint Problem
In this paper, we consider the checkpoint problem in which given an undirected graph G, a set of sourcedestinations {(s1, t1), (s1, t1), . . . , (sk, tk)} and a set of fixed paths...
MohammadTaghi Hajiaghayi, Rohit Khandekar, Guy Kor...
INFOCOM
2010
IEEE
13 years 7 months ago
Low-complexity Scheduling Algorithms for Multi-channel Downlink Wireless Networks
—This paper considers the problem of designing scheduling algorithms for multi-channel (e.g., OFDM) wireless downlink networks with n users/OFDM sub-channels. For this system, wh...
Shreeshankar Bodas, Sanjay Shakkottai, Lei Ying, R...
FOCS
1992
IEEE
14 years 20 days ago
Maximizing Non-Linear Concave Functions in Fixed Dimension
Consider a convex set P in IRd and a piecewise polynomial concave function F: P IR. Let A be an algorithm that given a point x IRd computes F(x) if x P, or returns a concave po...
Sivan Toledo
IPL
2011
73views more  IPL 2011»
13 years 3 months ago
Maximum subset intersection
Consider the following problem. Given n sets of sets A1, . . . , Au with elements over a universe E = {e1, . . . , en}, the goal is to select exactly one set from each of A1, . . ...
Raphaël Clifford, Alexandru Popa
CPM
2006
Springer
145views Combinatorics» more  CPM 2006»
14 years 9 days ago
Approximation of RNA Multiple Structural Alignment
Abstract. In the context of non-coding RNA (ncRNA) multiple structural alignment, Davydov and Batzoglou introduced in [7] the problem of finding the largest nested linear graph tha...
Marcin Kubica, Romeo Rizzi, Stéphane Vialet...