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Markus Klinik
c2-planning-scheduling-paper
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2974b13f
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2974b13f
authored
Feb 13, 2019
by
Markus Klinik
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objective vectors and decision vectors
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scheduling.tex
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@@ -136,4 +136,11 @@ An objective is therefore a number together with a label \emph{maximize} or \emp
Quality functions are not the only source of objectives in a C2 scheduling problem.
Another objective is the makespan, which should be minimized.
Objectives should be numbers on the ratio scale
\todo
{
cite measurement theory
}
, for reasons explained in
\cref
{
sec:mcdm
}
.
Every problem instance brings its own quality function.
To evaluate a solution, the quality function is applied to every skill that is assigned a resource.
For example, the solutions in
\cref
{
fig:SARSchedules
}
belong to an instance where nine skills must be assigned.
These assignments are called the
\emph
{
decision vector
}
of a solution.
The quality function is applied to nine skill/resource pairs.
Together with the makespan, every decision vector gives rise to a total of ten objectives, which is called the
\emph
{
objective vector
}
.
The goal of the scheduler is to find a decision vector that has a good objective vector.
The difficulties of comparing objective vectors are described in
\cref
{
sec:mcdm
}
.
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