Thread View: sci.math.num-analysis
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Started by Thitipong Tanprasert
Fri, 06 Nov 1992 17:39
Suggestion needed about constrained optimization
Author: Thitipong Tanprasert
Date: Fri, 06 Nov 1992 17:39
Date: Fri, 06 Nov 1992 17:39
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Hi,
I'm not a math student and just started to know about numerical
optimization a couple of weeks ago. However, I need to optimize an upto
200 variables nonlinear (quadractic and maybe trigonometric) objective
functions under many nonlinear (trigonometric) constraints. I have no
expectation to find global optimum. Just hope to obtain some good
acceptable results. Would anyone please help suggesting a reliable
constrained optimization method that I may program to deal with my
problem. I was suggested about Penalty Function and think it's quite
interesting. However, I have no idea if some other methods will
work better (generally). Also, if I use Penalty Function method, what
unconstrained optimization method should I attempt to implement? Is
there a ftp-able software about this that I may use directly without
having to program myself?
Any suggestion would be very appreciated,
T. Tanprasert
Re: constrained optimization
Author: Murray Dow
Date: Sun, 08 Nov 1992 22:27
Date: Sun, 08 Nov 1992 22:27
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In article <1992Nov6.173939.10662@usl.edu>, tt@swamp.cacs.usl.edu (Thitipong Tanprasert) writes: |> Hi, |> |> I'm not a math student and just started to know about numerical |> optimization a couple of weeks ago. However, I need to optimize an upto |> 200 variables nonlinear (quadractic and maybe trigonometric) objective |> functions under many nonlinear (trigonometric) constraints. I have no |> expectation to find global optimum. Just hope to obtain some good |> acceptable results. Would anyone please help suggesting a reliable |> constrained optimization method that I may program to deal with my |> problem. I was suggested about Penalty Function and think it's quite |> interesting. However, I have no idea if some other methods will |> work better (generally). Also, if I use Penalty Function method, what |> unconstrained optimization method should I attempt to implement? Is |> there a ftp-able software about this that I may use directly without |> having to program myself? |> There may be public domain programs for minimizing subject to nonlinear constraints in NETLIB: Otherwise there are excellent routines in NAG and IMSL. I have fortran routines for same problem I wrote many years ago that are not as efficient or reliable you are welcome to try if you can not get help from elsewhere. -- Murray Dow GPO Box 4 Canberra ACT 2601 Australia Supercomputer Facility Phone: +61 6 2495028 Australian National University Fax: +61 6 2473425 mld900@anusf.anu.edu.au
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