Top "Sigmoid" questions

A sigmoid function is a mathematical function having an "S" shape (sigmoid curve).

How to calculate a logistic sigmoid function in Python?

This is a logistic sigmoid function: I know x. How can I calculate F(x) in Python now? Let's say …

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What is the difference between a sigmoid followed by the cross entropy and sigmoid_cross_entropy_with_logits in TensorFlow?

When trying to get cross-entropy with sigmoid activation function, there is a difference between loss1 = -tf.reduce_sum(p*tf.…

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ReLU derivative in backpropagation

I am about making backpropagation on a neural network that uses ReLU. In a previous project of mine, I did …

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Binary classification with Softmax

I am training a binary classifier using Sigmoid activation function with Binary crossentropy which gives good accuracy around 98%. The same …

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sigmoid in python that can take scalar, vector or matrix

The following code is written in Octave Programming language g =1./(1+e.^-(z) It computes a sigmoid function and can …

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Keras Binary Classification - Sigmoid activation function

I've implemented a basic MLP in Keras with tensorflow and I'm trying to solve a binary classification problem. For binary …

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Usage of sigmoid activation function in Keras

I have a big dataset composed of 18260 input field with 4 outputs. I am using Keras and Tensorflow to build a …

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Fit sigmoid function ("S" shape curve) to data using Python

I'm trying to fit a sigmoid function to some data I have but I keep getting:ValueError: Unable to determine …

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Sigmoid layer in Keras

I have a list of values, ranging from 15000 to 25000. I have to separate them into two categories, such that (approx) 20000 …

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sigmoid function in python

I am trying to understand why my sigmoid function when the input is 37, it output 1. the sigmoid function: import math …

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