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WADS
2005
Springer
111views Algorithms» more  WADS 2005»
14 years 3 months ago
On Geometric Dilation and Halving Chords
Let G be an embedded planar graph whose edges may be curves. The detour between two points, p and q (on edges or vertices) of G, is the ratio between the shortest path in G between...
Adrian Dumitrescu, Annette Ebbers-Baumann, Ansgar ...
ALGORITHMICA
1998
143views more  ALGORITHMICA 1998»
13 years 9 months ago
On Minimum-Area Hulls
Abstract. We study some minimum-area hull problems that generalize the notion of convex hull to starshaped and monotone hulls. Specifically, we consider the minimum-area star-shap...
Esther M. Arkin, Yi-Jen Chiang, Martin Held, Josep...
PPOPP
2006
ACM
14 years 3 months ago
Collective communication on architectures that support simultaneous communication over multiple links
Traditional collective communication algorithms are designed with the assumption that a node can communicate with only one other node at a time. On new parallel architectures such...
Ernie Chan, Robert A. van de Geijn, William Gropp,...
STOC
2001
ACM
123views Algorithms» more  STOC 2001»
14 years 10 months ago
On optimal slicing of parallel programs
Optimal program slicing determines for a statement S in a program whether or not S affects a specified set of statements, given that all conditionals in are interpreted as non-d...
Markus Müller-Olm, Helmut Seidl
SIGECOM
2005
ACM
92views ECommerce» more  SIGECOM 2005»
14 years 3 months ago
True costs of cheap labor are hard to measure: edge deletion and VCG payments in graphs
We address the problem of lowering the buyer’s expected payments in shortest path auctions, where the buyer’s goal is to purchase a path in a graph in which edges are owned by...
Edith Elkind