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ALGORITHMICA
2010
92views more  ALGORITHMICA 2010»
15 years 6 months ago
Quantum Separation of Local Search and Fixed Point Computation
In this paper, we give a lower bound of (n(d-1)/2 ) on the quantum query complexity for finding a fixed point of a discrete Brouwer function over grid [1 : n]d . Our bound is near...
Xi Chen, Xiaoming Sun, Shang-Hua Teng
ALGORITHMICA
2008
56views more  ALGORITHMICA 2008»
15 years 6 months ago
Eliminating Cycles in the Discrete Torus
In this paper we consider the following question: how many vertices of the discrete torus must be deleted so that no topologically nontrivial cycles remain? We look at two differe...
Béla Bollobás, Guy Kindler, Imre Lea...
CGF
2008
132views more  CGF 2008»
15 years 6 months ago
Irradiance Gradients in the Presence of Participating Media and Occlusions
In this paper we present a technique for computing translational gradients of indirect surface reflectance in scenes containing participating media and significant occlusions. The...
Wojciech Jarosz, Matthias Zwicker, Henrik Wann Jen...
CLUSTER
2008
IEEE
15 years 6 months ago
Translating Service Level Objectives to lower level policies for multi-tier services
Service providers and their customers agree on certain quality of service guarantees through Service Level Agreements (SLA). An SLA contains one or more Service Level Objectives (S...
Yuan Chen, Subu Iyer, Xue Liu, Dejan S. Milojicic,...
CORR
2010
Springer
103views Education» more  CORR 2010»
15 years 6 months ago
Spatially-Adaptive Reconstruction in Computed Tomography Based on Statistical Learning
We propose a direct reconstruction algorithm for Computed Tomography, based on a local fusion of a few preliminary image estimates by means of a non-linear fusion rule. One such ru...
Joseph Shtok, Michael Zibulevsky, Michael Elad
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