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The AI Trilogy is a bundling of several products.  We have listed the changes below, grouped by product:

 

Predictor Changes Between Releases 2 and 3

New Graphics

The graphics have been updated and improved.

Row Limits

An artificial limit on the number of data rows (16000) is removed. The new limit is defined by the operating system only. It is not, however, how much RAM is installed or the size of your page file. The operating system puts limits on how much memory each application is allowed to use for all of its resources (graphic objects, data arrays, etc).

Additional Genetic Training Methods

The Genetic training method has two new optimization options: Evolution Strategies and Swarm Optimization. These two new modern optimization techniques complement GeneHunter's classical genetic algorithm used in previous versions.

Control Over Breeding Pool Size

The Genetic training method now allows manual control over breeding pool size and its random initialization (random number seed).

More Control Over Data Selection

Random selections of training/out-of sample data sets is now allowed in addition to the existing methods. Random selection is done by using either the number of rows or percentage points. When the random rows option is selected and the user applies a trained net, there is an option to choose which rows to apply the net to: out of sample, training or all available rows.

New Optimization Function

Predictor only:  The Genetic training method has a new optimization function: Maximize percent same sign of actual and predicted values.

Sound Alert for Genetic Method

The Genetic method makes a sound alert if training has ended because of the "Stop after N generations without improvement" criterion. This is helpful in the case of lengthy genetic training sessions to alert you when training has finished. The alert can be selected from system sound files (.wav files) available from your Windows\Media folder. Use the test alert button to play the sound and decide which one is best suited for your taste and environment.

3-D Graphics Add-On

The 3-Dimensional Graphics Add-On is an additional program for NeuroShell Predictor. It is designed to display a projection on the screen of a 3-dimensional surface (response curve), formed by a trained neural network output.  The neural network output (dimension Z in 3D space) is calculated while varying two selected input variables (dimensions X and Y) and while keeping all other input variables at some fixed values.

Classifier Changes Between Releases 2 and 3

New Graphics

The graphics have been updated and improved.

Row Limits

An artificial limit on the number of data rows (16000) is removed. The new limit is defined by the operating system only. It is not, however, how much RAM is installed or the size of  your page file. The operating system puts limits on how much memory each application is allowed to use for all of its resources (graphic objects, data arrays, etc).

Additional Genetic Training Methods

The Genetic training method has two new optimization options: Evolution Strategies and Swarm Optimization. These two new modern optimization techniques complement GeneHunter's classical genetic algorithm used in previous versions.

Control Over Breeding Pool Size

The Genetic training method now allows manual control over breeding pool size and its random initialization (random number seed).

More Control Over Data Selection

Random selections of training/out-of sample data sets is now allowed in addition to the existing methods. Random selection is done by using either the number of rows or percentage points. When the random rows option is selected and the user applies a trained net, there is an option to choose which rows to apply the net to: out of sample, training or all available rows.

Change in Agreement Matrix

The Agreement Matrix displays the Positive Prediction Value statistic which is yet another measure of how well the model makes correct classifications in each category. The higher the Positive Prediction Value the better the model's predictive power.

Sound Alert for Genetic Method

The Genetic method makes a sound alert if training has ended because of the "Stop after N generations without improvement" criterion. This is helpful in the case of lengthy genetic training sessions to alert you when training has finished. The alert can be selected from system sound files (.wav files) available from your Windows\Media folder. Use the test alert button to play the sound and decide which one is best suited for your taste and environment.

Run-time Server Changes Between Release 3.0 and 3.1 

The NeuroShell Run-Time Server is made compatible with Microsoft Vista and Microsoft Excel 2007.

Three new methods are added to nsrun.dll and the nsrun.ocx control: PredictorStats, ClassifierStatMatrix, and Prob2ClassName. These methods help to compute various kinds of statistics upon actual and predicted data. 

GeneHunter Changes from 2.4 to 3.0 

1. GeneHunter is made Microsoft Windows Vista and Microsoft Excel 2007 compatible:  

  • GeneHunter Add-In is modified to run under Excel 2007;

  • Help file is converted into the HTML Help format compatible with Microsoft Windows Vista;

  • GeneHunter Add-In is modified to call its new help file format. 

2. All Visual Basic 5 examples are updated with Visual Basic 6. 

3. The Microsoft Visual C 4.0 examples are updated with Visual C 6.0.

4. All Borland Delphi 3.0 examples are updated with Delphi 6.0. 

5. All Microsoft Excel example workbooks are updated with Excel 2003 (they are re-written in Excel 97-Excel 2003 workbook format).  

6. Minor changes in documentation.

 

 

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