sigmoid

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Related to sigmoidal: S curve, sigmoidal kinetics, Sigmoid curve

sigmoid

[′sig‚mȯid]
(biology)
S-shaped.
References in periodicals archive ?
The normality and constant variance tests of the sigmoidal model were passed with P values of 0.
These workers found that Cu sorption to 2 soils followed the typical sigmoidal behaviour when a 0.
The most important result was obtained with a 5-3-1 neural network with sigmoidal middle layer transfer functions and linear transfer function for the output layer.
1995) correctly claim that multiple, spatially fixed, environmental factors are sufficient to create log abundance-rank abundance curves with a rotated sigmoidal shape, other factors are likely to produce the same pattern.
That is, because V is a sigmoidal function of A, V/A [less than] V[prime], where A [less than] [A.
Nota-se, ainda na Figura 1, que as isotermas de dessorcao das sementes de pimenta Cabacinha estimadas pelo modelo de Cavalcanti Mata (3) possuem formato sigmoidal, caracteristicas de curvas do tipo II, seguindo a classificacao de BET (Brunauer et al.
2 in a 1000 epoch cycles with a sigmoidal activation function resulted in optimal outputs for the problem chosen.
Tabela 1--Equacoes de regressao sigmoidal do tipo logistico, para o controle e massa da materia seca de Leersia hexandra e Luziola peruviana, avaliados aos [28DAA.
Approximation by superposition's of a sigmoidal function Mathematics of Control, Signals, and Systems, 2(4): 303-314.
Figure 2 shows one example of each; the positive reaction shows a large sigmoidal curve while the negative reaction remains flat when fluorescence vs.
O fruto do pessegueiro e o resultado da diferenciacao e do crescimento das paredes do ovario, quando fecundado, sendo seu desenvolvimento caracterizado por uma curva sigmoidal dupla, com tres estadios distintos.
In case of thermal degradation of polymers, two degradation processes can be seen that are a sigmoidal function or a deceleration function (18-20).