Diff for "LogisticFunction"

Differences between revisions 2 and 3

LogisticFunction is sigmoid function, tending to 1 as x tends to infinity, to 0 as x tends to minus infinity, and with value 1/2 at x=0.

$\sigma(x) = \frac{e^x}{1 + e^x}$

It is widely used in NeuralNetwork analysis to convert scores built from sums into Probability - not entirely a coincidence.

-  ⇤ ← Revision 2 as of 2006-03-22 17:58:44 → 
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+   ← Revision 3 as of 2011-08-03 11:01:03 → ⇥
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-It is widely used in NeuralNetwork analysis to convert scores built from sums into ["Probability"] - not entirely a coincidence.
+It is widely used in NeuralNetwork analysis to convert scores built from sums into [[Probability]] - not entirely a coincidence.