On 15 November 2012 08:38, David Warde-Farley <[email protected]>wrote:
> On Wed, Nov 14, 2012 at 4:23 PM, Robert Layton <[email protected]>wrote:
>
>>
>> That said, I've used code under different licences as a *reference* before,
>> just remembering not to copy it at all.
>>
>
> The legal definition of "derivative work" can make things dicey in these
> situations.
>
> But, to my mind (and I am not a lawyer, so do not take this as in any way
> authoritative), there is definitely nothing wrong with running their code
> on a sample problem (or several) and verifying that your independent
> implementation arrives at the same or similar-enough results. This is how
> the first non-Intel x86 chips were designed, after all, and the first
> non-JVC VHS players, etc.
>
> David
>
>
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That's a good point to make, and one I didn't clarify. Reference the
implementation for ideas, but do not copy it.
I had a similar problem when I created the silhouette coefficient for
scikit-learn. I have faster code that I wrote for work, but couldn't use
those specific techniques for the code I wrote for scikit-learn.
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