GSoC 2015: Optimization Package: Non-linear and constrained least squares lsqcurvefit, lsqlin, lsqnonlin

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GSoC 2015: Optimization Package: Non-linear and constrained least squares lsqcurvefit, lsqlin, lsqnonlin – Hi, I am interested in the GSoC project for implementing Nonlinear and constrained least squares optimization problem in Octave [1]. I am s...
Hi AsmaA, On Mon, Feb 23, 2015 at 02:10:29PM -0800, AsmaA wrote: > Hi, > > I am interested in the GSoC project for implementing No...
Hi Olaf, Would you be interested in mentoring this project, since you're clearly more up to date on the Optimization package? If so, just upda...
On Tue, Feb 24, 2015 at 08:37:24PM +0000, Nir Krakauer wrote: > Hi Olaf, > > Would you be interested in mentoring this project, since...
Olaf, Mostly on general principles -- Octave aims to run code written for Matlab, and optimization is a capability used across many applicatio...
On Tue, Feb 24, 2015 at 10:28:57PM +0000, Nir Krakauer wrote: > Olaf, > > Mostly on general principles -- Octave aims to run code wri...
Le 25/02/2015 10:19, Olaf Till a écrit : > On Tue, Feb 24, 2015 at 10:28:57PM +0000, Nir Krakauer wrote: >> Olaf, >> >> M...
On Wed, Feb 25, 2015 at 10:58:55AM +0100, Julien Bect wrote: > <snip> > I say this both as a developer of a toolbox/package [1, 2] t...
Hi, Thank-you very much for the discussion on the project. I am following up on details in the background. 'lsqlin' should wrap aroun...
On Fri, Feb 27, 2015 at 01:00:50PM -0800, AsmaA wrote: > Hi, > > Thank-you very much for the discussion on the project. > > ...
On Sat, Feb 28, 2015 at 06:58:45PM +0100, Olaf Till wrote: > On Fri, Feb 27, 2015 at 01:00:50PM -0800, AsmaA wrote: > > Hi, > > ...
Hi Olaf, I installed Octave from sources in a VMware running Linux Mint. I started with qp/quadprog because it was the easiest to start with...
On Thu, Mar 05, 2015 at 12:44:52PM -0800, AsmaA wrote: > Hi Olaf, > > I installed Octave from sources in a VMware running Linux Mint....
Hi Olaf, Apologies for the delay. I had problems with my laptop. Thank-you for the comprehensive review. I have gone through your suggest...
On Mon, Mar 16, 2015 at 02:41:58PM -0700, AsmaA wrote: > Hi Olaf, > > Apologies for the delay. I had problems with my laptop. > ...
Hi Olaf, Thank-you very much! The changes look great. And apologies for not adding the copyright myself. Wouldn't have been possibl...
On Tue, Mar 17, 2015 at 03:34:14PM -0700, AsmaA wrote: > Hi Olaf, > > > Olaf Till-2 wrote > > On Mon, Mar 16, 2015 at 02:...
> On Tue, Mar 17, 2015 at 03:34:14PM -0700, AsmaA wrote: > <snip> > > lsqlin is a special case of quadprog. So I gave it an at...
In the future (GSoC?) quadprog and lsqlin should IMO be changed to directly call __qp__, not qp.m. Among other things this should make ordering ...
Hi Olaf, I spent some time studying some quadratic programming basics (Lagrange multipliers, KKT conditions, active set algorithm), qp.m an...
RFC: quadprog/lsqlin with __qp__ (Re: GSoC 2015, optim) – Hi Asma, On Thu, May 21, 2015 at 10:44:46AM -0700, AsmaA wrote: > Hi Olaf, > > > Olaf Till-2 wrote > > In the future (...
Hello, > Only read lines 460 to 477 for now, but I'm pretty sure that the > number of _active_ conastraints is only important internally...
On Fri, May 22, 2015 at 04:28:52PM +0100, Asma Afzal wrote: > > The problem with wrapping qp.m is that this order (e.g. the position > ...
Since there was no comment by others, we better don't rely on changes in qp.m. And although they are principally possible and harmful to our pur...
Hi Olaf, I have wrapped quadprog on __qp__. Could you please review the code in [1] and suggest changes. The variable mapping in the cod...
Hi Asma, On Sun, Jul 12, 2015 at 05:11:00PM -0700, AsmaA wrote: > Hi Olaf, > > > Olaf Till-2 wrote > > Since there was...
Hi Olaf, Thank you for your reply. > But currently it is accepted if one of A and b is empty and the other > not. What's the sense in...
On Mon, Jul 13, 2015 at 07:40:47PM -0700, AsmaA wrote: > Hi Olaf, > > Thank you for your reply. > > > But currently it is...
Hi Olaf, > The updated code still accepts (H, f, A, [], ...) and (H, f, [], A, ...). I have changed it. > > The values are diffe...
Hi Asma, On Fri, Jul 24, 2015 at 12:53:29PM +0100, Asma Afzal wrote: > ... > I spent some time to dig into __qp__.cc, but it turns out ...
On Mon, Jul 27, 2015 at 09:12:49AM +0200, Olaf Till wrote: > - Lambda should be inherently non-negative. Don't change it's sign to > get...
Hi Olaf, Could you please check quadprog in [1]? Kind Regards, Asma. [1] https://github.com/AsmaAfzal/octave_workspace/blob/master/quadp...
On Sun, Aug 16, 2015 at 12:41:32PM +0100, Asma Afzal wrote: > Hi Olaf, > > Could you please check quadprog in [1]? > > Kind ...
Hi Olaf, Thank you for the changes. > See the FIXME in the file. Can you still do this with reasonable > effort? I've made no attempt...
On Thu, Aug 27, 2015 at 12:44:18PM +0100, Asma Afzal wrote: > > I've only roughly looked at the part where you handle the lambda > >...
The new quadprog.m is now commited to the optim package and pushed, with only some minor changes (which don't change something for the user), on...
On Fri, Aug 28, 2015 at 10:50:20AM +0200, Olaf Till wrote: > Probably now you want to change lsqlin in a similar way ... Sorry, I wrote the...
Hi Olaf, Thank you for pushing quadprog. > Probably it would be > sensible to just let lsqlin wrap quadprog instead of qp. Please ...
Hi Olaf,​ Any hope of a new release of optim that includes the added functions? Best, Nir
On Sun, Feb 07, 2016 at 06:02:41PM -0500, Nir Krakauer wrote: > Hi Olaf,​ > > Any hope of a new release of optim that includes the ad...
On Mon, Feb 08, 2016 at 09:54:42AM +0100, Olaf Till wrote: > @Carnë > > BTW I'm still not 'officially' the maintainer of the optim pa...
On Mon, Aug 31, 2015 at 01:49:25AM +0100, Asma Afzal wrote: > Please have a look at lsqlin in [1]. Have commited and pushed it to optim wit...
I just tried Asma's quadprog.m wrapper function and noticed a minor Matlab incompatiblity you might want to fix: Let the quadratic cost functio...
On Mon, Jun 15, 2015 at 06:45:34AM -0700, rocketsound wrote: > I just tried Asma's quadprog.m wrapper function and noticed a minor Matlab >...
On Mon, Jun 15, 2015 at 05:17:10PM +0200, Olaf Till wrote: > Actually qp should do this, since it also accepts row vextors for x. Have file...
> Only to be informed, what's the current state -- Octave is rejected by > google but tries to get indirectly accepted via the FSF, have I ...
Hi, I've done some ground work on the GSoC application on melange. https://www.google-melange.com/gsoc/proposal/review/student/google/gsoc20...
Hi, I've updated the application a little bit. Can you guys see the melange part? Or does the GNU project only have access to that? The...
Thanks, AsmaA. Melange applications aren't publicly visible, so please copy all non-personal information from your application to the Wiki.​ -...
Hi Nir, Thank-you for the response. GNU has its own guidelines for proposals on Melange. http://www.gnu.org/software/soc-projects/guidelines...
Fwd: GSoC 2015: Optimization Package: Non-linear and constrained least squares lsqcurvefit, lsqlin, lsqnonlin – > I am a bit confused as to whether GNU will review the application or Octave? > Do senior members from Octave sign up as mentors under GN...
On Wed, Mar 18, 2015 at 11:00:19AM +0100, Olaf Till wrote: > <snip> > I'll take a look and will probably add it for you. I like this...
AsmaA, Nice contributions. It would be good practice for you to format the examples you have in runlsqlin.m as tests of lsqlin​. See [1] for the ...
Hi, Just wanted to ping here and reassure that I'm still focused for GSoC. It is Easter holidays here in the UK, and I have some travel plan...
Hi AsmaA, Seems like a nice contribution. Could you please post it as a patch? [1] Nir [1] http://savannah.gnu.org/patch/?group=octave
On 05/03/15 22:01, Nir Krakauer wrote: > Hi AsmaA, > > Seems like a nice contribution. Could you please post it as a patch? [1] &...
Le 25/02/2015 15:21, Olaf Till a écrit : > I'm curious, what relation have these people to Matlab -- have they to > buy Matlab privately,...
Re: Why Matlab/Octave cross-compatibility? (Was: GSoC 2015: Optimization Package: Non-linear and constrained least squares lsqcurvefit, lsqlin, lsqnonlin) – The question is not whether a wrapper is necessary, but how many times it'll be recreated independently. As for the motivation, many people devel...
Olaf, I agree that we do not expect to reproduce the Matlab results in all cases, especially in more 'difficult' or ill-posed problems -- but thi...
On Wed, Feb 25, 2015 at 07:56:15PM +0000, Nir Krakauer wrote: > Olaf, I agree that we do not expect to reproduce the Matlab results in all &g...
On Wed, Feb 25, 2015 at 09:12:59PM +0100, Olaf Till wrote: > On Wed, Feb 25, 2015 at 07:56:15PM +0000, Nir Krakauer wrote: > > <snip...
Thanks for looking into this, Olaf. So it sounds like the priority for the project should be to implement the missing lsq* functions (and possibl...
Also, what do you think about adding as a possible component of the project to benchmark the existing and new optimization functions with a suite...
On Fri, Feb 27, 2015 at 03:01:14PM +0000, Nir Krakauer wrote: > Also, what do you think about adding as a possible component of the project &...
On Fri, Feb 27, 2015 at 8:25 PM, Olaf Till <i7tiol@...> wrote: > On Fri, Feb 27, 2015 at 03:01:14PM +0000, Nir Krakauer wrote: > &...
On Fri, Feb 27, 2015 at 10:30:48PM +0000, Nir Krakauer wrote: > On Fri, Feb 27, 2015 at 8:25 PM, Olaf Till <i7tiol@...> wrote: > &...
Re: GSoC 2015: Optimization Package: Non-linear and constrained least squares lsqcurvefit, lsqlin, lsqnonlin – > On Feb 24, 2015, at 3:42 AM, Olaf Till <i7tiol@...> wrote: > >> >> I am studying the Levenberg-Marquardt algorithm ...
Re: GSoC 2015: Optimization Package: Non-linear and constrained least squares lsqcurvefit, lsqlin, lsqnonlin – On 6 April 2015 at 19:57, Ben Abbott <bpabbott@...> wrote: >> On Feb 24, 2015, at 3:42 AM, Olaf Till <i7tiol@...> wrote: >&...
> On Apr 6, 2015, at 3:05 PM, Carnë Draug <carandraug@...> wrote: > > On 6 April 2015 at 19:57, Ben Abbott <bpabbott@...> ...
Hi, Apologies for the delayed response. I was travelling and on holiday. Thank-you for highlighting leasqr. I have added a note in th...
On Wed, Apr 15, 2015 at 03:30:41PM -0700, AsmaA wrote: > <snip> > > Thank-you for highlighting leasqr. > > I have added...
Hi Olaf, Thank-you for the detailed response. On 2/24/2015 8:42 AM, Olaf Till wrote: > Hi AsmaA, > > On Mon, Feb 23, 2015 at 02:...
On Tue, Feb 24, 2015 at 10:03:15PM +0000, Asma Afzal wrote: > <snip> > [2] just explains the unconstrained case (which I was referri...
In case it is of interest, I have an primal-dual interior point solver for non-linear optimization (similar to fmincon) implemented in pure Matlab...
On Fri, Mar 06, 2015 at 07:37:14AM -0800, rdzman wrote: > In case it is of interest, I have an primal-dual interior point solver for > non...