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SODA
2012
ACM
226views Algorithms» more  SODA 2012»
13 years 7 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
SODA
2012
ACM
213views Algorithms» more  SODA 2012»
13 years 7 months ago
Expanders are universal for the class of all spanning trees
Given a class of graphs F, we say that a graph G is universal for F, or F-universal, if every H ∈ F is contained in G as a subgraph. The construction of sparse universal graphs ...
Daniel Johannsen, Michael Krivelevich, Wojciech Sa...
SODA
2012
ACM
217views Algorithms» more  SODA 2012»
13 years 7 months ago
Deterministic construction of an approximate M-ellipsoid and its applications to derandomizing lattice algorithms
We give a deterministic O(log n)n -time and space algorithm for the Shortest Vector Problem (SVP) of a lattice under any norm, improving on the previous best deterministic nO(n) -...
Daniel Dadush, Santosh Vempala
SODA
2012
ACM
170views Algorithms» more  SODA 2012»
13 years 7 months ago
Compression via matroids: a randomized polynomial kernel for odd cycle transversal
The Odd Cycle Transversal problem (OCT) asks whether a given graph can be made bipartite by deleting at most k of its vertices. In a breakthrough result Reed, Smith, and Vetta (Op...
Stefan Kratsch, Magnus Wahlström
SODA
2012
ACM
227views Algorithms» more  SODA 2012»
13 years 7 months ago
Improved output-sensitive quantum algorithms for Boolean matrix multiplication
We present new quantum algorithms for Boolean Matrix Multiplication in both the time complexity and the query complexity settings. As far as time complexity is concerned, our resu...
François Le Gall
SODA
2012
ACM
205views Algorithms» more  SODA 2012»
13 years 7 months ago
Approximate duality of multicommodity multiroute flows and cuts: single source case
Given an integer h, a graph G = (V, E) with arbitrary positive edge capacities and k pairs of vertices (s1, t1), (s2, t2), . . . , (sk, tk), called terminals, an h-route cut is a ...
Petr Kolman, Christian Scheideler
SODA
2012
ACM
249views Algorithms» more  SODA 2012»
13 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
SODA
2012
ACM
199views Algorithms» more  SODA 2012»
13 years 7 months ago
On the communication and streaming complexity of maximum bipartite matching
Ashish Goel, Michael Kapralov, Sanjeev Khanna
TON
2012
13 years 7 months ago
On New Approaches of Assessing Network Vulnerability: Hardness and Approximation
—Society relies heavily on its networked physical infrastructure and information systems. Accurately assessing the vulnerability of these systems against disruptive events is vit...
Thang N. Dinh, Ying Xuan, My T. Thai, Panos M. Par...
TON
2012
13 years 7 months ago
Static Routing and Wavelength Assignment for Multicast Advance Reservation in All-Optical Wavelength-Routed WDM Networks
—In this paper we investigate the static multicast advance reservation (MCAR) problem for all-optical wavelengthrouted WDM networks. Under the advanced reservation traffic model...
Neal Charbonneau, Vinod Vokkarane