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FOCS
2009
IEEE

Local Graph Partitions for Approximation and Testing

11 years 8 months ago
Local Graph Partitions for Approximation and Testing
—We introduce a new tool for approximation and testing algorithms called partitioning oracles. We develop methods for constructing them for any class of bounded-degree graphs with an excluded minor, and in general, for any hyperfinite class of bounded-degree graphs. These oracles utilize only local computation to consistently answer queries about a global partition that breaks the graph into small connected components by removing only a small fraction of the edges. We illustrate the power of this technique by using it to extend and simplify a number of previous approximation and testing results for sparse graphs, as well as to provide new results that were unachievable with existing techniques. For instance: • We give constant-time approximation algorithms for the size of the minimum vertex cover, the minimum dominating set, and the maximum independent set for any class of graphs with an excluded minor. • We show a simple proof that any minor-closed graph property is testable in...
Avinatan Hassidim, Jonathan A. Kelner, Huy N. Nguy
Added 20 May 2010
Updated 20 May 2010
Type Conference
Year 2009
Where FOCS
Authors Avinatan Hassidim, Jonathan A. Kelner, Huy N. Nguyen, Krzysztof Onak
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