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Rakesh Kumar

Last seen: 3 mesi fa |  Attivo dal 2011

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Risposto
Can I restart surrogateopt from earlier iterations with checkpoint file?
I don't think of any easy way to do this.

quasi 2 anni fa | 2

Risposto
Optimization using parallel-computing is returning optimized vector that does not match the reward provided.
Hi Aaron, Optimization solvers often does not work with "UseParallel == true" option when a Simulink model is part of objective...

circa 2 anni fa | 3

| accettato

Risposto
Is it possible to impose custom conditions for an early surrogate reset?
Hi James, Surrogateopt reset criteria depends on the "expected reduction of objective function value" assuming the incumbent is...

quasi 4 anni fa | 0

| accettato

Risposto
GA error due to boxdirections
Before running your code, please issue this command (so MATLAB wil stop where an error is thrown) dbstop if error MATLAB will ...

oltre 4 anni fa | 0

Risposto
Unexpected Change in Population Diversity of Genetic Algorithm
Hi David, The behavior is strange. It would be great to have a reproduction script if you can share since this behavior is on a...

oltre 4 anni fa | 0

Risposto
Please could I have more detail on the 'quasirandom' sequence in surrogateopt?
Please take a look at this doc page (section Definitions for Surrogate Optimization) https://www.mathworks.com/help/gads/surrog...

quasi 5 anni fa | 0

Risposto
Does using global variables in objective function risk error when using ga in parallel?
Every worker will have its own copy of the global variable not in sync with other workers. Its global for all the M-files on a w...

quasi 10 anni fa | 1

Risposto
Patternsearchw with genetic algorithm
Hi Grzegorz, Thanks for posting this issue; it is a bug. The only workaround I can see is to change the code and compare nargin...

circa 11 anni fa | 0

| accettato

Risposto
Slacktol value ?
First suggestion is to use the newer algorithm added in 11a if you can. The warning message I get should be fixed (easy to f...

oltre 13 anni fa | 0

| accettato

Risposto
mesh size change in patternsearch
The trial points are probably infeasible with that big mesh size; hence no function evaluation.

oltre 13 anni fa | 1

Risposto
How to get alternative solutions to a linear programming problem using linprog?
Why do you think there won't be a unique solution? When you have a linear objective (bounded) and constraints are linear (and bo...

quasi 14 anni fa | 1

Risposto
quadprog vs fmincon
Have you looked at fmincon 'interior-point' algorithm option? Here is a snippet of help from this algorithm W = HessMultFcn(x...

quasi 14 anni fa | 1

Risposto
Optimization of function described in standalone code
You will have to create a C++ file (which is called MEX in MATLAB environment) that can be called directly from MATLAB. See some...

quasi 14 anni fa | 0

| accettato