sigmoidUnitRbm

An instance of the class <code><a href="/link/?package=darch&version=0.12.0" rbm'="" data-mini-rdoc="darch::"></a>'>RBM</code>.

A matrix with the data for the calculations.

data

biases

The weight matrix for the calculations.

weights

Parameters which indicates the status of the training.

runParams

matMult

Calculates the RBM neuron output with the sigmoid function from input saved
in <code>data</code>.

internal

The darch package is built on the basis of the code from G. E.
Hinton and R. R. Salakhutdinov (available under Matlab Code for deep belief
nets). This package is for generating neural networks with many layers (deep
architectures) and train them with the method introduced by the publications
"A fast learning algorithm for deep belief nets" (G. E. Hinton, S. Osindero,
Y. W. Teh (2006) <DOI:10.1162/neco.2006.18.7.1527>) and "Reducing the
dimensionality of data with neural networks" (G. E. Hinton, R. R.
Salakhutdinov (2006) <DOI:10.1126/science.1127647>). This method includes a
pre training with the contrastive divergence method published by G.E Hinton
(2002) <DOI:10.1162/089976602760128018> and a fine tuning with common known
training algorithms like backpropagation or conjugate gradients.
Additionally, supervised fine-tuning can be enhanced with maxout and
dropout, two recently developed techniques to improve fine-tuning for deep
learning.

Martin Drees

darch

Package for Deep Architectures and Restricted Boltzmann Machines

sigmoidUnitRbm function

An instance of the class <code><a href='<a href='RBM'></a>'>RBM</a></code>.

sigmoidUnitRbm: Calculates the RBM neuron output with the sigmoid function

Description

Usage

Arguments

Value

Details

See Also