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any one expert in AMPL or Linear /Non linear programming?

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pmonon

pmonon

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please give me some idea about this problem:

Say I have an obj function:
Σ (Z[mlf]) *(1+log X[mlf])
where Z[mlf] is a binary valued (or indicator) function having either value 1 or 0.

I need to maximize the function over all m,l,f.

How I can implement it in AMPL? Is there any way to convert the objective function so that I can use the linear programming feature?
 

convert this discrete equation into linear equation.
and make use of the Primal Dual Algorithm.
 

Re: any one expert in AMPL or Linear /Non linear programming

Cking said:
convert this discrete equation into linear equation.
and make use of the Primal Dual Algorithm.
Click to expand...

Hey Cking

And do you have any idea how to convert this non lin aq. to a lin one? Cause I dont have any so far. Can you give me some hints?
 

you should seek a relaxation of the integral constraints to continuous variables.
Average the binary indicator obtained in a certain span of time----thats the maximum help that i can offer.good luck.
 

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