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COMPGEOM
2009
ACM
13 years 11 months ago
Approximate center points with proofs
We present the Iterated-Tverberg algorithm, the first deterministic algorithm for computing an approximate centerpoint of a set S ∈ Rd with running time sub-exponential in d. T...
Gary L. Miller, Donald Sheehy
ISAAC
2009
Springer
92views Algorithms» more  ISAAC 2009»
13 years 11 months ago
Online Maximum Directed Cut
We investigate a natural online version of the well-known Maximum Directed Cut problem on DAGs. We propose a deterministic algorithm and show that it achieves a competitive ratio o...
Amotz Bar-Noy, Michael Lampis
COCO
2009
Springer
155views Algorithms» more  COCO 2009»
13 years 11 months ago
Weak Derandomization of Weak Algorithms: Explicit Versions of Yao's Lemma
—A simple averaging argument shows that given a randomized algorithm A and a function f such that for every input x, Pr[A(x) = f(x)] ≥ 1−ρ (where the probability is over the...
Ronen Shaltiel
SODA
2010
ACM
197views Algorithms» more  SODA 2010»
14 years 2 months ago
Quasirandom Load Balancing
We propose a simple distributed algorithm for balancing indivisible tokens on graphs. The algorithm is completely deterministic, though it tries to imitate (and enhance) a random ...
Tobias Friedrich, Martin Gairing, Thomas Sauerwald
STOC
2005
ACM
164views Algorithms» more  STOC 2005»
14 years 5 months ago
Cooperative asynchronous update of shared memory
The Write-All problem for an asynchronous shared-memory system has the objective for the processes to update the contents of a set of shared registers, while minimizing the mber o...
Bogdan S. Chlebus, Dariusz R. Kowalski