نتایج جستجو برای: logistic sigmoid function

تعداد نتایج: 1318358  

2009
AMOS R. OMONDI JAGATH C. RAJAPAKSE Amos R. Omondi Jagath C. Rajapakse Mariusz Bajger Bernard Girau Sanjay Rajopadhye Changjian Gao Shaojuan Zhu Mike Butts José Hiroki Saito

This introductory chapter reviews the basics of artificial-neural-network theory, discusses various aspects of the hardware implementation of neural networks (in both ASIC and FPGA technologies, with a focus on special features of artificial neural networks), and concludes with a brief note on performanceevaluation. Special points are the exploitation of the parallelism inherent in neural netwo...

1999
COLIN P. D. BIRCH

A new sigmoid growth equation is presented for curve-fitting, analysis and simulation of growth curves. Like the logistic growth equation, it increases monotonically, with both upper and lower asymptotes. Like the Richards growth equation, it can have its maximum slope at any value between its minimum and maximum. The new sigmoid equation is unique because it always tends towards exponential gr...

Journal: :Foundations of Management 2014

Journal: :Behavior Research Methods & Instrumentation 1974

The present study investigates buckling characteristics of both nonlinear symmetric power and sigmoid functionally graded (FG) beams. The volume fractions of metal and ceramic are assumed to be distributed through a beam thickness by the sigmoid-law distribution (S-FGM), and the symmetric power function (SP-FGM). These functions have smooth variation of properties across the boundary rather tha...

2005
AMOS R. OMONDI JAGATH RAJAPAKSE Amos R. Omondi Jagath C. Rajapakse Mariusz Bajger Kristian Nichols Bernard Girau Sanjay Rajopadhye Changjian Gao Shaojuan Zhu Mike Butts José Hiroki Saito Rui Xiao Mario Porrmann Ulf Witkowski Ulrich Rückert Antonio Canas Eva M. Ortigosa

This introductory chapter reviews the basics of artificial-neural-network theory, discusses various aspects of the hardware implementation of neural networks (in both ASIC and FPGA technologies, with a focus on special features of artificial neural networks), and concludes with a brief note on performanceevaluation. Special points are the exploitation of the parallelism inherent in neural netwo...

2005
Azme Khamis Tun Hussein

This study provided the basic needs of parameters estimation for nonlinear growth model such as partial derivatives of each model, determination of initial values for each parameter and statistical tests of industrial usage. Twelve nonlinear growth models and its partial derivatives for oil palm yield growth are presented in this study. The parameters are estimated using the Marquardt iterative...

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