Re^2: backpropagation accuracy issue

Further support that this is not a floating pointing point issue: The max is correct to one digit and the average is correct to 4 digits, but doubles have about 17 digits (53 bits) of precision.

Comment on Re^2: backpropagation accuracy issue

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Re^3: backpropagation accuracy issue by perlchris (Initiate) on Feb 19, 2011 at 03:17 UTC
If I could get both to 6 digits (or perhaps more) it'd be acceptable. The program that made the output to test against though is not written in Perl. I don't know if the casts are implemented significantly different in different languages, but I believe the other program was written in Java. We were allowed to write in any language and I thought Perl would be a good way to do it since that's what I've been reading on as of late. Again thank you for the help and suggestions. They are very appreciated. I will continue to look through and see if I can identify the problem with my implementation.	[reply]

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Re^3: backpropagation accuracy issue
by perlchris (Initiate) on Feb 19, 2011 at 03:17 UTC

If I could get both to 6 digits (or perhaps more) it'd be acceptable. The program that made the output to test against though is not written in Perl. I don't know if the casts are implemented significantly different in different languages, but I believe the other program was written in Java.

We were allowed to write in any language and I thought Perl would be a good way to do it since that's what I've been reading on as of late.

Again thank you for the help and suggestions. They are very appreciated. I will continue to look through and see if I can identify the problem with my implementation.

[reply]