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FOCS
2003
IEEE
14 years 4 months ago
Gossip-Based Computation of Aggregate Information
David Kempe, Alin Dobra, Johannes Gehrke
FOCS
2003
IEEE
14 years 4 months ago
Approximation Algorithms for Asymmetric TSP by Decomposing Directed Regular Multigraphs
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 ...
Haim Kaplan, Moshe Lewenstein, Nira Shafrir, Maxim...
FOCS
2003
IEEE
14 years 4 months ago
Breaking a Time-and-Space Barrier in Constructing Full-Text Indices
Suffix trees and suffix arrays are the most prominent full-text indices, and their construction algorithms are well studied. In the literature, the fastest algorithm runs in O(n...
Wing-Kai Hon, Kunihiko Sadakane, Wing-Kin Sung
FOCS
2003
IEEE
14 years 4 months ago
A Non-Markovian Coupling for Randomly Sampling Colorings
We study a simple Markov chain, known as the Glauber dynamics, for randomly sampling (proper) k-colorings of an input graph G on n vertices with maximum degree ∆ and girth g. We...
Thomas P. Hayes, Eric Vigoda
FOCS
2003
IEEE
14 years 4 months ago
Bounded Geometries, Fractals, and Low-Distortion Embeddings
The doubling constant of a metric space (X, d) is the smallest value λ such that every ball in X can be covered by λ balls of half the radius. The doubling dimension of X is the...
Anupam Gupta, Robert Krauthgamer, James R. Lee
FOCS
2003
IEEE
14 years 4 months ago
The Complexity of Homomorphism and Constraint Satisfaction Problems Seen from the Other Side
We give a complexity theoretic classification of homomorphism problems for graphs and, more generally, relational structures obtained by restricting the left hand side structure ...
Martin Grohe
FOCS
2003
IEEE
14 years 4 months ago
On the (In)security of the Fiat-Shamir Paradigm
Shafi Goldwasser, Yael Tauman Kalai
FOCS
2003
IEEE
14 years 4 months ago
On the Implementation of Huge Random Objects
We initiate a general study of pseudo-random implementations of huge random objects, and apply it to a few areas in which random objects occur naturally. For example, a random obj...
Oded Goldreich, Shafi Goldwasser, Asaf Nussboim