AW: [math] CMA-ES input sigma

2011-11-07 Thread Dr. Dietmar Wolz
Will have a look when Gilles finished the change next week. Dietmar -Ursprüngliche Nachricht- Von: Gilles Sadowski [mailto:gil...@harfang.homelinux.org] Gesendet: Montag, 7. November 2011 15:22 An: dev@commons.apache.org Betreff: Re: [math] CMA-ES input sigma > [...] > >

Re: [math] CMA-ES input sigma

2011-11-07 Thread Gilles Sadowski
> [...] > > > > P.S. Please don't forget that the "CMAESOptimizer" is not yet upgraded to > > use the new "optimize" API (for simple bounds); I intended to change > > that by next week. > > Ah, thanks. This explain some strange behaviour I get. I will let you > adapt this, for now I wil

Re: [math] CMA-ES input sigma

2011-11-07 Thread Luc Maisonobe
Le 07/11/2011 14:42, Luc Maisonobe a écrit : > Le 07/11/2011 14:24, Gilles Sadowski a écrit : >> Hi Luc. >> >>> I am trying to use CMA-ES optimizer with simple boundaries. >>> It seems the inputSigma parameter should be normalized as it is checked >>> against the [0; 1] range in the checkParameters

Re: [math] CMA-ES input sigma

2011-11-07 Thread Luc Maisonobe
Le 07/11/2011 14:24, Gilles Sadowski a écrit : > Hi Luc. > >> I am trying to use CMA-ES optimizer with simple boundaries. >> It seems the inputSigma parameter should be normalized as it is checked >> against the [0; 1] range in the checkParameters private method and as >> its value defaults to 0.3

Re: [math] CMA-ES input sigma

2011-11-07 Thread Gilles Sadowski
Hi Luc. > I am trying to use CMA-ES optimizer with simple boundaries. > It seems the inputSigma parameter should be normalized as it is checked > against the [0; 1] range in the checkParameters private method and as > its value defaults to 0.3 if not not set in the initializeCMA private > method.

Re: [math] CMA-ES input sigma

2011-11-07 Thread Bruce A Johnson
I had exactly this problem (where it wasn't obvious that the sigma parameter needed to be normalized to [0-1]), a few days ago. I think your second solution is the more user friendly. Bruce On Nov 7, 2011, at 7:58 AM, Luc Maisonobe wrote: > Hello, > > I am trying to use CMA-ES optimizer with

[math] CMA-ES input sigma

2011-11-07 Thread Luc Maisonobe
Hello, I am trying to use CMA-ES optimizer with simple boundaries. It seems the inputSigma parameter should be normalized as it is checked against the [0; 1] range in the checkParameters private method and as its value defaults to 0.3 if not not set in the initializeCMA private method. I would ha