-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi there,
I'm currently working an a global optimisation function using Differential Evolution. It is based on the Matlab function on this page: http://www.icsi.berkeley.edu/~storn/code.html ) I have converted it according to the "octave style" and improved it using the latest developments on differential evolution. It is a derivative free method usable for problems with many local minima and high dimensionality (variables). It is also possible to set the boundaries as constraints. It should be better or at least comparable to state of the art evolutionary strategies or genetic algorithms. I have the impression that octave does not have a good global optimiser at the moment. So maybe this function could fill the gap. I do have a few questions. What is the current policy for the optimisation package? What makes a function part of the core octave and why are some functions in the external octaveforge package? Who is responsible for the optimisation part in octave? I attached my current version to this mail. I still have to change the header using the texinfo statements and add a test. I also might rewrite it in C++ in case I get the feeling that it is too slow. (There is one nasty loop I couldn't vectorise.) I am willing to maintain this function and would appreciate criticism of any kind. To my person: I am a mechanical engineering student from Germany. Currently I'm writing my diploma (master) thesis on optimisation of radial turbomachinery using differential evolution. I am using octave for 5 years now and I think its time to give something back :) Best wishes Christian -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Use GnuPG with Firefox : http://getfiregpg.org (Version: 0.7.6) iQIcBAEBCAAGBQJKZQLcAAoJEJghsQQMM0PT3IMQANqjtEU067/Xb4kLBIaRKekW K5n8rtEmAfnNjyavlB5UA8HZ0nLamftsXyvpFYHv1qGFKxCf7aHmKwLUVYDPY75k JX0YW/AGnUXEQvkDmYhXaVLiaA6WstXZlmcuERoKkFA/RVmkQID6mEQF4hIv6OtX v9EdGqOyBpTOwsyNA3BMppZtwS49kvI6NNRGUxz3sQRCwya0Q1/hhgisP5e5DUWz bMFOGjX7McpkxyE5DcZ5iNYRgHR4ipBIxCFD4wDkCTYLjKs5/PYp2zHCuCUYTITR pADtwKq5Y+h6zSS5ZT3xDd5naZzJCTE2FsxGAt0RJchvI5dT3H1eGoTzuhWUT3z2 TlXoV8gyUZDdKaT+X1jUxETOI3R4XNQXC3+rbDqWqOdH8cmA1PCen6yYVRHyuYVU bMp6btRrmZXtPM0QJnePTFRfSpIR7Um91HXQ/Rb6RurCJpGURNY6ExOvXZPxsZSI IP1CDnsU/UYhe9QskWeGRgz0+IzSYT8NhNfWCTc2PNHdvzku7dO3t26xaUYD2yP3 gQxccXH3LSfeSrD4ofIPpY+VkDlQHidKY+1BabJsSvm6uACY3TAlGgN0nmSZ0zEz D6rxgk4qf65I5VypHzX2vRg/1QB3sva54cSdVQjwaQ7XfjUdY8Rk1kFMAHuWnQkQ lGQIw+S/RdqG2gtPjPFg =u4DR -----END PGP SIGNATURE----- ________________________________________________________________ Neu: WEB.DE Doppel-FLAT mit Internet-Flatrate + Telefon-Flatrate für nur 19,99 Euro/mtl.!* http://produkte.web.de/go/02/
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