Basic Neural Network on Python

Re:Basic Neural Network on Python by gamegoblin on Friday July 05, 2013 @01:44PM (#5995884)

I usually use an array with a few thousand entries. In C this gives me a 2.5x speedup over the exact function with no important decrease in accuracy.

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Re:Basic Neural Network on Python by mistercow on Friday July 05, 2013 @03:02PM (#5996255)

I wonder though if you might actually do better overall with a smaller lookup table and interpolation (or even just a polynomial approximation, which can be evaluated without branching), since large lookup tables can lead to bad cache behavior.

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Re:Basic Neural Network on Python by dfrodriguez143 on Friday July 05, 2013 @02:54PM (#5996218)

Very interesting and simple improvement. Definitely will take a look at that.

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