Sciweavers

ACMSE
2006
ACM
14 years 6 months ago
Using an end-to-end demonstration in an undergraduate grid computing course
In this paper, we describe a demonstration called an “End-to-End” demonstration developed for the 2005 offering of our grid computing course that was taught across the State o...
Mark A. Holliday, Barry Wilkinson, James Ruff
FOCS
2006
IEEE
14 years 6 months ago
Local Graph Partitioning using PageRank Vectors
A local graph partitioning algorithm finds a cut near a specified starting vertex, with a running time that depends largely on the size of the small side of the cut, rather than...
Reid Andersen, Fan R. K. Chung, Kevin J. Lang
FOCS
2006
IEEE
14 years 6 months ago
Strategic Network Formation through Peering and Service Agreements
We introduce a game theoretic model of network formation in an effort to understand the complex system of business relationships between various Internet entities (e.g., Autonomou...
Elliot Anshelevich, F. Bruce Shepherd, Gordon T. W...
FOCS
2006
IEEE
14 years 6 months ago
Lower Bounds for Additive Spanners, Emulators, and More
An additive spanner of an unweighted undirected graph G with distortion d is a subgraph H such that for any two vertices u, v ∈ G, we have δH(u, v) ≤ δG(u, v) + d. For every...
David P. Woodruff
FOCS
2006
IEEE
14 years 6 months ago
On a Geometric Generalization of the Upper Bound Theorem
We prove an upper bound, tight up to a factor of 2, for the number of vertices of level at most in an arrangement of n halfspaces in Rd , for arbitrary n and d (in particular, the...
Uli Wagner
FOCS
2006
IEEE
14 years 6 months ago
Dispersion of Mass and the Complexity of Randomized Geometric Algorithms
How much can randomness help computation? Motivated by this general question and by volume computation, one of the few instances where randomness provably helps, we analyze a noti...
Luis Rademacher, Santosh Vempala
FOCS
2006
IEEE
14 years 6 months ago
Higher Lower Bounds for Near-Neighbor and Further Rich Problems
We convert cell-probe lower bounds for polynomial space into stronger lower bounds for near-linear space. Our technique applies to any lower bound proved through the richness meth...
Mihai Patrascu, Mikkel Thorup
FOCS
2006
IEEE
14 years 6 months ago
Planar Earthmover is not in L_1
Assaf Naor, Gideon Schechtman