نتایج جستجو برای: روش rbf

تعداد نتایج: 374510  

2015
Noah J. Marcus Carolin Pügge Jai Mediratta Alicia M. Schiller Rodrigo Del Rio Irving H. Zucker Harold D. Schultz

Marcus NJ, Pügge C, Mediratta J, Schiller AM, Del Rio R, Zucker IH, Schultz HD. Exercise training attenuates chemoreflexmediated reductions of renal blood flow in heart failure. Am J Physiol Heart Circ Physiol 309: H259–H266, 2015. First published May 18, 2015; doi:10.1152/ajpheart.00268.2015.—In chronic heart failure (CHF), carotid body chemoreceptor (CBC) activity is increased and contributes...

Journal: :American journal of physiology. Heart and circulatory physiology 2015
Noah J Marcus Carolin Pügge Jai Mediratta Alicia M Schiller Rodrigo Del Rio Irving H Zucker Harold D Schultz

In chronic heart failure (CHF), carotid body chemoreceptor (CBC) activity is increased and contributes to increased tonic and hypoxia-evoked elevation in renal sympathetic nerve activity (RSNA). Elevated RSNA and reduced renal perfusion may contribute to development of the cardio-renal syndrome in CHF. Exercise training (EXT) has been shown to abrogate CBC-mediated increases in RSNA in experime...

2017
Kazuhiro Shimizu Nobuyuki Kosaka Yasuhiro Fujiwara Tsuyoshi Matsuda Tatsuya Yamamoto Tatsuro Tsuchida Katsuki Tsuchiyama Nobuyuki Oyama Hirohiko Kimura

PURPOSE The importance of arterial transit time (ATT) correction for arterial spin labeling MRI has been well debated in neuroimaging, but it has not been well evaluated in renal imaging. The purpose of this study was to evaluate the feasibility of pulsed continuous arterial spin labeling (pcASL) MRI with multiple post-labeling delay (PLD) acquisition for measuring ATT-corrected renal blood flo...

Journal: :IEEE Trans. Communications 2003
Mong-Suan Yee Bee Leong Yeap Lajos Hanzo

This paper presents a turbo equalization (TEQ) scheme, which employs a radial basis function (RBF)-based equalizer instead of the conventional trellis-based equalizer of Douillard et al. Structural, computational complexity, and performance comparisons of the RBF-based and trellis-based TEQs are provided. The decision feedback-assisted RBF TEQ is capable of attaining a similar performance to th...

2013
Jianbo Xu Quanyuan Tan Lisheng Song Kai Hao Ke Xiao

To seek optimal network parameters of Radial Basis Function (RBF) Neural Network and improve the accuracy of this method on estimation of soil property space, this study utilizes genetic algorithm to optimize three network parameters of RBF Neural Network including the number of hidden layer nodes, expansion speed and root-mean-square error. Then, based on optimized RBF Neural Network, spatial ...

Journal: :IEEE transactions on neural networks 1996
Chng Eng Siong Sheng Chen Bernard Mulgrew

We present a method of modifying the structure of radial basis function (RBF) network to work with nonstationary series that exhibit homogeneous nonstationary behavior. In the original RBF network, the hidden node's function is to sense the trajectory of the time series and to respond when there is a strong correlation between the input pattern and the hidden node's center. This type of respons...

2005
Poyueh Chen Hungming Tsai ChengJian Lin ChiYung Lee

In this paper we propose a radial basis function (RBF) neural network for nonlinear time-invariant channel equalizer. The RBF network model has a three-layer structure which is comprised of an input layer, a hidden layer and an output layer. The learning algorithm consists of unsupervised learning and supervised learning. The unsupervised learning mainly adjusts the weight among input layer and...

2006
S. Chen C. J. Harris X. Hong

An orthogonal forward selection (OFS) algorithm based on leave-one-out (LOO) misclassification rate is proposed for the construction of radial basis function (RBF) classifiers with tunable units. Each stage of the construction process determines a RBF unit, namely its centre vector and diagonal covariance matrix as well as weight, by minimising the LOO statistics. This OFS-LOO algorithm is comp...

Journal: :IEEE Trans. Communications 2001
Mong-Suan Yee Tong-Hooi Liew Lajos Hanzo

The performance of the proposed radial basis function (RBF) assisted turbo-coded adaptive modulation scheme is characterized in a wideband channel scenario. We commence by introducing the novel concept of the Jacobian RBF equalizer, which is a reduced-complexity version of the conventional RBF equalizer. Specifically, the Jacobian logarithmic RBF equalizer generates its output in the logarithmi...

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