Results 51 to 60 of about 10,610,136 (340)

Coefficient functionals for a class of bounded turning functions related to modified sigmoid function

open access: yesAIMS Mathematics, 2021
The main objective of the present article is to define the class of bounded turning functions associated with modified sigmoid function. Also we investigate and determine sharp results for the estimates of four initial coefficients, Fekete-Szegö ...
Muhammad Ghaffar Khan   +4 more
semanticscholar   +1 more source

Improved parameter identification algorithm for ship model based on nonlinear innovation decorated by sigmoid function

open access: yesTransportation Safety and Environment, 2021
This paper investigates the problem of parameter identification for ship nonlinear Nomoto model with small test data, a nonlinear innovation-based identification algorithm is presented by embedding sigmoid function in the stochastic gradient algorithm.
Xianku Zhang   +2 more
semanticscholar   +1 more source

Sigmoid Function based Modelling and Route Tracking of Obstacle avoidance for Ship in Restricted Water

open access: yesMATEC Web of Conferences, 2018
In order to solve the problem of obstacle avoidance of ship in restricted waters, a type of path planning method for obstacle avoidance based on sigmoid function was designed.
Zhao Yue   +5 more
doaj   +1 more source

Univariant Approximation by Superpositions of a Sigmoidal Function

open access: yesJournal of Mathematical Analysis and Applications, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
B. Gao, Yuan Xu
openaire   +3 more sources

SinLU: Sinu-Sigmoidal Linear Unit

open access: yesMathematics, 2022
Non-linear activation functions are integral parts of deep neural architectures. Given the large and complex dataset of a neural network, its computational complexity and approximation capability can differ significantly based on what activation function
Ashis Paul   +4 more
doaj   +1 more source

Approximation of functions of finite variation by superpositions of a Sigmoidal function

open access: yesApplied Mathematics Letters, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
MARINO, Giuseppe, LEWICKI G.
openaire   +5 more sources

Management of a Case of Colovesical Fistula with Fecaluria as First Sign [PDF]

open access: yes, 2015
Introduction. Fecaluria and pneumaturia are the patognomonic signs of an abnormal communication between the bladder and the intestinal tract. Therefore, when a history of digestive signs, symptoms or digestive diseases is missing, this borderline ...
Andresanu, A.   +9 more
core   +2 more sources

A Robust Polarmetric SAR Terrain Classification Based on Sparse Deep Autoencoder Model Combined With Wavelet Kernel-Based Classifier

open access: yesIEEE Access, 2020
Since the existing terrain classification algorithm based on deep learning is not ideal for unbalanced PolSAR classification, a effective terrain classification algorithm based on wavelet kernel sparse deep coding network under unbalanced data set is ...
Xiangdong Chen, Jianghong Deng
doaj   +1 more source

Optimal Performance and Application for Seagull Optimization Algorithm Using a Hybrid Strategy

open access: yesEntropy, 2022
This paper aims to present a novel hybrid algorithm named SPSOA to address problems of low search capability and easy to fall into local optimization of seagull optimization algorithm.
Qingyu Xia   +5 more
doaj   +1 more source

On Certain Properties of a Degenerate Sigmoid Function

open access: yesEuropean Journal of Mathematical Analysis, 2023
In this paper, we introduce a degenerate sigmoid function. By employing analytical techniques, we present some properties such as logarithmic concavity, monotonicity and inequalities of the new function.
Thomas Awinba Akugre   +2 more
openaire   +2 more sources

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