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cVision Licensing

For using cVision a valid licence is mandatory, licences may be purchased from NGS for different product levels. Depending on your demands you can select one of these product levels and purchase the particular licence for your purpose, cVision is licensed for a specified period of time. We offer 1 year, 2 year or 3 year licences or a short term evaluation licence.

On request we will send you a customer licence information file containing all necessary information to activate cVision on your computer. Customers holding a valid licence are entitled to download the latest cVision updates for free.

At present we are distributing the following three product levels, the particular levels are to be activated by a licence key.

  • Standard Level
  • Professional Level
  • Enterprise Level

All levels include all features to create and train a single neural network successfully, the features hold in detail

  • Numerical and Categorical Data Handling
  • Heuristic Network Initialization
  • Intelligent Input Neurons
  • Local Adaptive Learning Rules
  • Cluster Learning
  • Superior Stopping Criteria
  • Automatic Network QC

The table below summarizes the differences between the particular cVision product levels.

Feature P r o d u c t   L e v e l Comment
  Standard Professional Enterprise  
Multi Linear Regression (MLR) yes yes yes  
Multi Layer Perceptron (MLP) yes yes yes Unlimited Number of Hidden Layers
Generalized Multi Layer Perceptron (GMP) --- yes yes Unlimited Number of Hidden Layers
Completely Connected Perceptron (CCP) --- yes yes  
Heuristic Approach to Optimal Network Size --- yes yes Automatic Network Growing
Improved Multi Layer Perceptron (iMLP) --- --- yes  
Improved Generalized Multi Layer Perceptron (iGMP) --- --- yes  
Improved Completely Connected Perceptron (iCCP) --- --- yes  
Automatic Multi Fold Cross Validation --- --- yes  
Robust Error Function (L1 Norm) --- --- yes Outlier Insensitive Networks

The Multi Linear Regression (MLR) is a special and easy case of a neural network. The MLR has only input and output layer without any hidden neurons in between. The figure below sketches the network like structure of an MLR expert.

MLR

The Multi Layer Perceptron (MLP) is organized in layers, each layer containing an arbitrarily number of hidden neurons. Multi Layer Perceptrons have an input layer, one ore more hidden layers and an output layer. The Improved Multi Layer Perceptron (iMLP) has additional input output shortcut connections, drawn in orange in the right picture below.

 
MLP   iMLP

The Generalized Multi Layer Perceptron (GMP) is organized in layers, each layer containing an arbitrarily number of hidden neurons. Generalized Multi Layer Perceptrons have an input layer, one ore more hidden layers and an output layer. The Improved Generalized Multi Layer Perceptron (iGMP) has additional input output shortcut connections, drawn in orange in the right picture below.

 
GMP   iGMP

The Completely Connected Perceptron (CCP) has in opposite to the Multi Layer Perceptron the advantage, that a network growing process is straight forward since it is no longer necessary to find an optimal choice for the number of hidden layers. Completely Connected Perceptrons have an input layer, one single input block consisting of an arbitrary number of hidden neurons and they have of course an output layer. The Improved Completely Connected Perceptron (iCCP) has additional input output shortcut connections, drawn in orange in the right picture below.

 
CCP   iCCP

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Last Update: 29.01.08

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