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Sigmoid function

Known as: Sigmoids, Sigmoidal curve, S-shaped curve 
A sigmoid function is a mathematical function having an "S" shaped curve (sigmoid curve). Often, sigmoid function refers to the special case of the… 
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Related topics

Related topics

28 relations
Activation functionArtificial intelligenceArtificial neural networkArtificial neuron

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2011
Highly Cited
2011
RAPID CHANGES OF PHOTOSPHERIC MAGNETIC FIELD AFTER TETHER-CUTTING RECONNECTION AND MAGNETIC IMPLOSION
The rapid, irreversible change of the photospheric magnetic field has been recognized as an important element of the solar flare… 
Highly Cited
2010
Highly Cited
2010
ON THE ERUPTION OF CORONAL FLUX ROPES
We present three-dimensional MHD simulations of the evolution of the magnetic field in the corona where the emergence of a… 
Highly Cited
2007
Highly Cited
2007
The Eruption from a Sigmoidal Solar Active Region on 2005 May 13
This paper presents a multiwavelength study of the M8.0 flare and its associated fast halo CME that originated from a bipolar… 
Highly Cited
2001
Highly Cited
2001
Biomass and productivity of water hyacinth and their application in control programs.
Water hyacinth is controllable if management programs take account of plant dynamics and factors that influence plant behaviour… 
Highly Cited
1997
Highly Cited
1997
Predicting the response of leaf stomatal frequency to a future CO2-enriched atmosphere: constraints from historical observations
Abstract The majority of the water flux from the earth’s land surface to the atmosphere passes through the tiny pores (stomata… 
Highly Cited
1996
Highly Cited
1996
Mapping Ecological Land Systems and Classification Uncertainties from Digital Elevation and Forest-Cover Data Using Neural Networks
Our approaches in this project emphasized mainly the technical aspects of the land-systems classification problem with neural… 
Highly Cited
1996
Highly Cited
1996
Speckle reduction and enhancement of SAR images in the wavelet domain
Three methods are investigated for speckle reduction and enhancement of synthetic aperture radar (SAR) images in the orthogonal… 
Review
1991
Review
1991
A critical overview of neural network pattern classifiers
A taxonomy of neural network pattern classifiers is presented which includes four major groupings. Global discriminant… 
Highly Cited
1990
Highly Cited
1990
Equations for describing sigmoid yield responses and their application to some phosphate responses by lupins and by subterranean clover
Responses to nutrients are sometimes sigmoid. A series of equations is proposed to describe such curves and to test whether the… 
Highly Cited
1948
Highly Cited
1948
The intramural extension of carcinoma of the descending colon, sigmoid, and rectosigmoid; a pathologic study.
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