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» The Complexity of Graph Connectivity
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2008
15 years 5 months ago
A simple method for improving the primal simplex method for the multicommodity flow problem
We present a new efficient approach for solving the multicommodity flow problem as a sequence of subproblems, each on a very sparse but connected network. We show that each subpro...
Agustín Bompadre, James B. Orlin
DAM
2002
82views more  DAM 2002»
15 years 4 months ago
On the computational complexity of strong edge coloring
In the strong edge coloring problem, the objective is to color the edges of the given graph with the minimum number of colors so that every color class is an induced matching. In ...
Mohammad Mahdian
133
Voted
SPAA
2010
ACM
15 years 3 months ago
Managing the complexity of lookahead for LU factorization with pivoting
We describe parallel implementations of LU factorization with pivoting for multicore architectures. Implementations that differ in two different dimensions are discussed: (1) usin...
Ernie Chan, Robert A. van de Geijn, Andrew Chapman
141
Voted
ENDM
2010
103views more  ENDM 2010»
15 years 2 months ago
Structural Analysis for Differential-Algebraic Systems: Complexity, Formulation and Facets
In this paper we consider the structural analysis problem for differential-algebraic systems with conditional equations. This consists, given a conditional differential algebraic ...
Mathieu Lacroix, Ali Ridha Mahjoub, Sébasti...
COCOA
2007
Springer
15 years 11 months ago
Steiner Forests on Stochastic Metric Graphs
We consider the problem of connecting given vertex pairs over a stochastic metric graph, each vertex of which has a probability of presence independently of all other ver
Vangelis Th. Paschos, Orestis Telelis, Vassilis Zi...