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» The Guarding Problem - Complexity and Approximation
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WSC
2004
15 years 3 months ago
Retrospective Approximation Algorithms for the Multidimensional Stochastic Root-Finding Problem
The stochastic root-finding problem (SRFP) is that of solving a system of q equations in q unknowns using only an oracle that provides estimates of the function values. This paper...
Raghu Pasupathy, Bruce W. Schmeiser
CORR
2008
Springer
169views Education» more  CORR 2008»
15 years 2 months ago
Tight Approximation Ratio of a General Greedy Splitting Algorithm for the Minimum k-Way Cut Problem
For an edge-weighted connected undirected graph, the minimum k-way cut problem is to find a subset of edges of minimum total weight whose removal separates the graph into k connect...
Mingyu Xiao, Leizhen Cai, Andrew C. Yao
ESA
2010
Springer
227views Algorithms» more  ESA 2010»
15 years 3 months ago
Approximating Parameterized Convex Optimization Problems
We consider parameterized convex optimization problems over the unit simplex, that depend on one parameter. We provide a simple and efficient scheme for maintaining an -approximat...
Joachim Giesen, Martin Jaggi, Sören Laue
124
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JCSS
2010
155views more  JCSS 2010»
15 years 1 months ago
Approximation and fixed-parameter algorithms for consecutive ones submatrix problems
We develop an algorithmically useful refinement of a forbidden submatrix characterization of 0/1-matrices fulfilling the Consecutive Ones Property (C1P). This characterization ...
Michael Dom, Jiong Guo, Rolf Niedermeier
CMA
2010
155views more  CMA 2010»
14 years 12 months ago
Approximate solutions to a parameterized sixth order boundary value problem
In this paper, the homotopy analysis method (HAM) is applied to solve a parameterized sixth order boundary value problem which, for large parameter values, cannot be solved by oth...
Songxin Liang, David J. Jeffrey