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» A Shallow Approach to Subjectivity Classification
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IOR
2008
109views more  IOR 2008»
13 years 7 months ago
Polynomial-Time Algorithms for Stochastic Uncapacitated Lot-Sizing Problems
In 1958, Wagner and Whitin published a seminal paper on the deterministic uncapacitated lot-sizing problem, a fundamental model that is embedded in many practical production plann...
Yongpei Guan, Andrew J. Miller
SIAMDM
2008
99views more  SIAMDM 2008»
13 years 7 months ago
Phase Changes in Subtree Varieties in Random Recursive and Binary Search Trees
We study the variety of subtrees lying on the fringe of recursive trees and binary search trees by analyzing the distributional behavior of Xn,k, which counts the number of subtree...
Qunqiang Feng, Hosam M. Mahmoud, Alois Panholzer
SIAMSC
2008
127views more  SIAMSC 2008»
13 years 7 months ago
Restoration of Chopped and Nodded Images by Framelets
In infrared astronomy, an observed image from a chop and nod process can be considered as the result of passing the original image through a highpass filter. Here we propose a rest...
Jian-Feng Cai, Raymond H. Chan, Lixin Shen, Zuowei...
SIAMSC
2008
167views more  SIAMSC 2008»
13 years 7 months ago
Low-Dimensional Polytope Approximation and Its Applications to Nonnegative Matrix Factorization
In this study, nonnegative matrix factorization is recast as the problem of approximating a polytope on the probability simplex by another polytope with fewer facets. Working on th...
Moody T. Chu, Matthew M. Lin
SIAMSC
2008
75views more  SIAMSC 2008»
13 years 7 months ago
Well-Balanced Time Implicit Formulation of Relaxation Schemes for the Euler Equations
We show how to derive time implicit formulations of relaxation schemes for the Euler equations for real materials in several space dimensions. In the fully time explicit setting, t...
Christophe Chalons, Frédéric Coquel,...