Linear optimization: Parametrical objective function 4: Unterschied zwischen den Versionen

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Compared  to the [[sensitivity analysis]] the Parametrical objective function ''makes a statement about large changes in the input data''.
 
Compared  to the [[sensitivity analysis]] the Parametrical objective function ''makes a statement about large changes in the input data''.
  
=Basic  Knowledge=
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== =Basic  Knowledge= ==
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To include large changes in the input data you have to add a new variable "q". For simple cases you just summate the new variable "q" multiplicated with a constant vektor "ß" to the objective function. In this case the constant vektor is the value which change the input parameter "c".
 
To include large changes in the input data you have to add a new variable "q". For simple cases you just summate the new variable "q" multiplicated with a constant vektor "ß" to the objective function. In this case the constant vektor is the value which change the input parameter "c".

Version vom 26. Juni 2013, 13:38 Uhr

Parametrical objective function is a special part of linear optimization. The foundation of parametrical optimization is the sensitivity analysis. Compared to the sensitivity analysis the Parametrical objective function makes a statement about large changes in the input data.


=Basic Knowledge=

To include large changes in the input data you have to add a new variable "q". For simple cases you just summate the new variable "q" multiplicated with a constant vektor "ß" to the objective function. In this case the constant vektor is the value which change the input parameter "c".

The objectiv function is now with a parameter:

c(q)=c+q*ß

Thereby there is a new optimization problem which can be solved.

P(q)=(c+q*ß)^T x --> max!

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Exemplification