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Distributed congestion control is the hot topic in computer network research. A primal-dual generic model with boundary limit is introduced to describe a class of congestion control algorithms based on optimization theorem. Considering the influence of the boundary, the conditions of the system equilibrium are proposed and the stability of the model without time delay is analyzed in generic network...
This paper focuses mainly on development of an efficient affine registration scheme for multimodality images. The stochastic gradient optimization of mutual information is accomplished using a simultaneous perturbation stochastic approximation (SPSA) technique to do the tuning of the affine parameters. The experimental results show that the SPSA based stochastic gradient optimization is strong for...
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