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» The Shortcut Problem - Complexity and Approximation
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IPL
2008
132views more  IPL 2008»
15 years 3 months ago
Asymptotic fully polynomial approximation schemes for variants of open-end bin packing
We consider three variants of the open-end bin packing problem. Such variants of bin packing allow the total size of items packed into a bin to exceed the capacity of a bin, provi...
Leah Epstein, Asaf Levin
125
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JCO
2006
66views more  JCO 2006»
15 years 3 months ago
Tree edge decomposition with an application to minimum ultrametric tree approximation
A k-decomposition of a tree is a process in which the tree is recursively partitioned into k edge-disjoint subtrees until each subtree contains only one edge. We investigated the p...
Chia-Mao Huang, Bang Ye Wu, Chang-Biau Yang
MOC
2000
86views more  MOC 2000»
15 years 3 months ago
Numerical algorithms for semilinear parabolic equations with small parameter based on approximation of stochastic equations
The probabilistic approach is used for constructing special layer methods to solve the Cauchy problem for semilinear parabolic equations with small parameter. Despite their probabi...
G. N. Milstein, M. V. Tretyakov
140
Voted
CORR
2011
Springer
179views Education» more  CORR 2011»
14 years 7 months ago
Approximating minimum-power edge-multicovers
Given a graph with edge costs, the power of a node is the maximum cost of an edge incident to it, and the power of a graph is the sum of the powers of its nodes. Motivated by appli...
Nachshon Cohen, Zeev Nutov
IJSNET
2008
125views more  IJSNET 2008»
15 years 3 months ago
Minimum-cost sensor arrangement for achieving wanted coverage lifetime
: Suppose we need to watch a set of targets continuously for a required period of time, and suppose we choose any number of sensors from a fixed set of sensor types and place them ...
Jie Wang, Ning Zhong