Sciweavers

APPROX
2004
Springer
135views Algorithms» more  APPROX 2004»
14 years 5 months ago
The Diameter of Randomly Perturbed Digraphs and Some Applications.
The central observation of this paper is that if ǫn random arcs are added to any n-node strongly connected digraph with bounded degree then the resulting graph has diameter O(ln ...
Abraham Flaxman, Alan M. Frieze
APPROX
2004
Springer
110views Algorithms» more  APPROX 2004»
14 years 5 months ago
Convergence Issues in Competitive Games
Vahab S. Mirrokni, Adrian Vetta
APPROX
2004
Springer
165views Algorithms» more  APPROX 2004»
14 years 5 months ago
Approximating Additive Distortion of Embeddings into Line Metrics
We consider the problem of fitting metric data on n points to a path (line) metric. Our objective is to minimize the total additive distortion of this mapping. The total additive ...
Kedar Dhamdhere
APPROX
2004
Springer
105views Algorithms» more  APPROX 2004»
14 years 5 months ago
Counting Connected Graphs and Hypergraphs via the Probabilistic Method
While it is exponentially unlikely that a sparse random graph or hypergraph is connected, with probability 1 − o(1) such a graph has a “giant component” that, given its numbe...
Amin Coja-Oghlan, Cristopher Moore, Vishal Sanwala...
APPROX
2004
Springer
125views Algorithms» more  APPROX 2004»
14 years 5 months ago
Strong Refutation Heuristics for Random k-SAT
A simple first moment argument shows that in a randomly chosen k-SAT formula with m clauses over n boolean variables, the fraction of satisfiable clauses is 1−2−k +o(1) as m/...
Amin Coja-Oghlan, Andreas Goerdt, André Lan...
APPROX
2004
Springer
117views Algorithms» more  APPROX 2004»
14 years 5 months ago
The Greedy Algorithm for the Minimum Common String Partition Problem
In the Minimum Common String Partition problem (MCSP) we are given two strings on input, and we wish to partition them into the same collection of substrings, minimizing the numbe...
Marek Chrobak, Petr Kolman, Jiri Sgall
APPROX
2004
Springer
122views Algorithms» more  APPROX 2004»
14 years 5 months ago
Maximum Coverage Problem with Group Budget Constraints and Applications
We study a variant of the maximum coverage problem which we label the maximum coverage problem with group budget constraints (MCG). We are given a collection of sets S = {S1, S2, ....
Chandra Chekuri, Amit Kumar
APPROX
2004
Springer
88views Algorithms» more  APPROX 2004»
14 years 5 months ago
A Stateful Implementation of a Random Function Supporting Parity Queries over Hypercubes
Abstract. Motivated by an open problem recently suggested by Goldreich et al., we study truthful implementations of a random binary function supporting compound XOR queries over su...
Andrej Bogdanov, Hoeteck Wee
APPROX
2004
Springer
180views Algorithms» more  APPROX 2004»
14 years 5 months ago
A 3/4-Approximation Algorithm for Maximum ATSP with Weights Zero and One
We present a polynomial time 3/4-approximation algorithm for the maximum asymmetric TSP with weights zero and one. As applications, we get a 5/4-approximation algorithm for the (mi...
Markus Bläser
APPROX
2004
Springer
136views Algorithms» more  APPROX 2004»
14 years 5 months ago
On the Crossing Spanning Tree Problem
Given an undirected n-node graph and a set C of m cuts, the minimum crossing tree is a spanning tree which minimizes the maximum crossing of any cut in C, where the crossing of a c...
Vittorio Bilò, Vineet Goyal, R. Ravi, Mohit...