291 search results - page 26 / 59 » Approximate centerpoints with proofs |
173
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STOC
2003
ACM
16 years 6 months ago
2003
ACM
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
141
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FOCS
2005
IEEE
15 years 11 months ago
2005
IEEE
This paper studies the computational complexity of the following type of quadratic programs: given an arbitrary matrix whose diagonal elements are zero, find x ∈ {−1, +1}n th...
197
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FOCS
2003
IEEE
15 years 11 months ago
2003
IEEE
A directed multigraph is said to be d-regular if the indegree and outdegree of every vertex is exactly d. By Hall’s theorem one can represent such a multigraph as a combination ...
183
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STOC
2010
ACM
15 years 11 months ago
2010
ACM
We give the first polynomial-time approximation scheme (PTAS) for the Steiner forest problem on planar graphs and, more generally, on graphs of bounded genus. As a first step, w...
190
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COCO
1994
Springer
15 years 10 months ago
1994
Springer
A probabilistically checkable debate system (PCDS) for a language L consists of a probabilisticpolynomial-time veri er V and a debate between Player 1, who claims that the input x ...