Results 31 to 40 of about 10,610,136 (340)

An Agent-Based Framework for Policy Simulation: Modeling Heterogeneous Behaviors With Modified Sigmoid Function and Evolutionary Training

open access: yesIEEE Transactions on Computational Social Systems, 2023
This article proposes an agent-based policy simulation framework that can be applied to the cases satisfying: 1) the agents try to maximize some intertemporal preference and 2) the impacts of different factors on agents’ behavioral tendency are monotonic.
Songming Yu
semanticscholar   +1 more source

BP Neural Network Fuse with Morphology Edge Detection Method

open access: yesJournal of Harbin University of Science and Technology, 2021
In order to obtain better image edge information, an edge detection algorithm combining BP (Back Propagation) neural network and morphology is proposed.
YUE Xin-hua, DENG Cai-xia, ZHANG Zhao-ru
doaj   +1 more source

Robustness enhancement study of augmented positive identification controller by a sigmoid function

open access: yesIAES International Journal of Artificial Intelligence (IJ-AI), 2023
The dissolved oxygen concentration in the wastewater treatment process (WWTP) must remain in a specific range while the factory operates. The augmented positive identification (PID) controller with a nonlinear element (sigmoid function) is proposed to ...
Abbas H. Issa   +3 more
semanticscholar   +1 more source

Handling Vanishing Gradient Problem Using Artificial Derivative

open access: yesIEEE Access, 2021
Sigmoid function and ReLU are commonly used activation functions in neural networks (NN). However, sigmoid function is vulnerable to the vanishing gradient problem, while ReLU has a special vanishing gradient problem that is called dying ReLU problem ...
Zheng Hu, Jiaojiao Zhang, Yun Ge
doaj   +1 more source

Designing novel LDO voltage regulator implementation on FPGA using neural network [PDF]

open access: yesJournal of Applied Research on Industrial Engineering, 2021
This paper describes a new technique for implementing an Artificial Neural Network (ANN) using Field Programmable Gate Array (FPGA). The goal is design the Low Drop Output (LDO) voltage-regulator circuit with the desired features depending on the ...
Mahdieh Jahangiri   +2 more
doaj   +1 more source

Studi Komparasi Fungsi Aktivasi Sigmoid Biner, Sigmoid Bipolar dan Linear pada Jaringan Saraf Tiruan dalam Menentukan Warna RGB Menggunakan Matlab

open access: yesJurnal Serambi Engineering, 2022
Neural network Backpropagation is a good method to use to determine RGB color (Red, Green, Blue) because it can give high accuracy values. Neural network backpropagation there are several activation functions that can be used.
Ikhwan Pamungkas   +2 more
doaj   +1 more source

An effective vehicle road scene recognition based on improved deep learning

open access: yesMeasurement: Sensors, 2023
In order to improve the recognition for autonomous vehicles with respect to road scenes, a new activation function called ReLU sigmoid is proposed based on ReLU and the sigmoid model, which resolves the issue of neuron necrosis in the ReLU model. Through
Qiaojun Li, Wei Yang
doaj   +1 more source

A Flexible Sigmoid Function of Determinate Growth [PDF]

open access: yesAnnals of Botany, 2002
A new empirical equation for the sigmoid pattern of determinate growth, 'the beta growth function', is presented. It calculates weight (w) in dependence of time, using the following three parameters: t(m), the time at which the maximum growth rate is obtained; t(e), the time at the end of growth; and w(max), the maximal value for w, which is achieved ...
Yin, X.   +4 more
openaire   +3 more sources

Sigmoid functions for the smooth approximation to the absolute value function [PDF]

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
Abstract We present smooth approximations to the absolute value function |x| using sigmoid functions. In particular, x erf(x/μ) is proved to be a better smooth approximation for |x| than x tanh(x/μ) and
Yogesh J. Bagul, Christophe Chesneau
openaire   +3 more sources

Generation of Achievable Three-Dimensional Trajectories for Autonomous Wheeled Vehicles via Tracking Differentiators

open access: yesAlgorithms, 2023
Planning an achievable trajectory for a mobile robot usually consists of two steps: (i) finding a path in the form of a sequence of discrete waypoints and (ii) transforming this sequence into a continuous and smooth curve.
Svetlana A. Krasnova   +3 more
doaj   +1 more source

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