An improved semidefinite programming hierarchies rounding approximation algorithm for maximum graph bisection problems
Chenchen Wu,
Donglei Du and
Dachuan Xu ()
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Chenchen Wu: Beijing University of Technology
Donglei Du: University of New Brunswick
Dachuan Xu: Beijing University of Technology
Journal of Combinatorial Optimization, 2015, vol. 29, issue 1, No 4, 53-66
Abstract:
Abstract We present a unified semidefinite programming hierarchies rounding approximation algorithm for a class of maximum graph bisection problems with improved approximation ratios. Under the above algorithmic framework, we show that the approximation ratios of Max- $$\frac{n}{2}$$ n 2 -cut, Max- $$\frac{n}{2}$$ n 2 -dense-subgraph, and Max- $$\frac{n}{2}$$ n 2 -vertex-cover are equal to those of Max- $$\frac{n}{2}$$ n 2 -uncut, Max- $$\frac{n}{2}$$ n 2 -directed-cut, and Max- $$\frac{n}{2}$$ n 2 -directed-uncut, respectively.
Keywords: Semidefinite programming hierarchies; Approximation algorithm; Rounding; Graph bisection problems (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1007/s10878-013-9673-1
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