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- W2963374165 abstract "It has been shown by Indyk and Sidiropoulos that any graph of genus g > 0 can be stochastically embedded into a distribution over planar graphs with distortion 2 <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>O(g)</sup> . This bound was later improved to O(g <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> ) by Borradaile, Lee and Sidiropoulos. We give an embedding with distortion O(log g), which is asymptotically optimal. Apart from the improved distortion, another advantage of our embedding is that it can be computed in polynomial time. In contrast, the algorithm of requires solving an NP-hard problem. Our result implies in particular a reduction for a large class of geometric optimization problems from instances on genus-p graphs, to corresponding ones on planar graphs, with a O(log g) loss factor in the approximation guarantee." @default.
- W2963374165 created "2019-07-30" @default.
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- W2963374165 date "2010-10-01" @default.
- W2963374165 modified "2023-09-23" @default.
- W2963374165 title "Optimal Stochastic Planarization" @default.
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