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Topic: training adaline neuron w "trainwh"
Replies: 1   Last Post: Jun 17, 1996 10:24 PM

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Tom Miller

Posts: 3
Registered: 12/7/04
training adaline neuron w "trainwh"
Posted: Jun 17, 1996 7:41 PM
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Hi there,
I'm hoping someone with the neural networks toolbox (and a little
more knowledge than me) can answer a few questions.

1) the neural netork toolbox manual says that the trainwh function
uses the "Widrow Hoff" learning algorithm. I cant find any direct
references to that in Widrow's "Adaptive signal processing" book.
Is the Widrow Hoff LR the same as the Least Mean Squares
algorithm?

2) The trainwh function returns a bias value. The lms algorithm
doesn't address adjustment of the bias input - what rule does this
function use for bias adjustment?

3) I thougth that the lms algorithm was supposed to "jitter about"
when it gets close to the minimum error (i.e. the best set of
synaptic weights) when I run the training algorithm I get what
appears to be an exponential decrease in the error function over
time. What is going on?





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