I don't have SAS Enterprise Miner 5.3 installed, but in the current version you can click on the Neural Network node in question and then click on the ... to the right of the Optimization property in order to access these settings. There are several properties listed in the Propagation Options section of the dialog that appears including Learn and Momentum. You can find more information about these properties if you access the help utility in SAS Enterprise Miner by opening the application and clicking on Help --> Contents and then navigating in the panel on the left to
Node Reference
Model
Neural Network Node: Usage
Then click on Neural Network Node Train Properties in the panel on the right and scroll down to the Propagation Options. I'm pasting an excerpt from the help utility below:
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- Propagation Options — The Propagation Options section of the Optimization window contains the following settings:
- Accelerate — Use the Accelerate propagation option to specify the rate of increase of learning for the RPROP optimization technique.
- Decelerate — Use the Decelerate propagation option to specify the rate of decrease of learning for the RPROP optimization technique.
- Learn — Use the Learn propagation option to specify the learning rate for BACKPROP or the initial learning rate for QPROP and RPROP optimization techniques.
- Maximum Learning — Use the Maximum Learning propagation option to specify the maximum learning rate for the RPROP optimization technique.
- Minimum Learning — Use the Minimum Learning propagation option to specify the minimum learning rate for the RPROP optimization technique.
- Momentum — Use the Momentum propagation option to specify the momentum rate.
- Maximum Momentum — Use the Momentum propagation option to specify the maximum momentum rate for the QPROP optimization technique.
- Tilt — Use the Tilt propagation option to specify the tilt rate for the QPROP optimization technique.
I hope this helps!
Doug
