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» Note on Sparse Random Graphs and Cover Graphs
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ECCC
2006
88views more  ECCC 2006»
13 years 7 months ago
Hardness of Directed Routing with Congestion
Given a graph G and a collection of source-sink pairs in G, what is the least integer c such that each source can be connected by a path to its sink, with at most c paths going th...
Julia Chuzhoy, Sanjeev Khanna
IACR
2011
106views more  IACR 2011»
12 years 7 months ago
Hash Functions Based on Three Permutations: A Generic Security Analysis
We consider the family of 2n-to-n-bit compression functions that are solely based on at most three permutation executions and on XOR-operators, and analyze its collision and preima...
Bart Mennink, Bart Preneel
CORR
2008
Springer
141views Education» more  CORR 2008»
13 years 8 months ago
Truthful Unsplittable Flow for Large Capacity Networks
The unsplittable flow problem is one of the most extensively studied optimization problems in the field of networking. An instance of it consists of an edge capacitated graph and ...
Yossi Azar, Iftah Gamzu, Shai Gutner
COLT
2003
Springer
14 years 1 months ago
On Finding Large Conjunctive Clusters
We propose a new formulation of the clustering problem that differs from previous work in several aspects. First, the goal is to explicitly output a collection of simple and meani...
Nina Mishra, Dana Ron, Ram Swaminathan
SWAT
2004
Springer
153views Algorithms» more  SWAT 2004»
14 years 1 months ago
Melding Priority Queues
We show that any priority queue data structure that supports insert, delete, and find-min operations in pq(n) time, when n is an upper bound on the number of elements in the prio...
Ran Mendelson, Robert Endre Tarjan, Mikkel Thorup,...