[ library(fd) | Reference Manual | Alphabetic Index ]
minimize(?Goal, ?C, +Lower, +Upper, +Percent)
Find the solution of Goal that minimizes C, within the bounds set by Lower,
Upper and Percent.
- ?Goal
- A callable term.
- ?C
- A linear term.
- +Lower
- Integer.
- +Upper
- Integer.
- +Percent
- Integer.
Description
A solution of the goal Goal is found that minimizes the value of C.
The solution is found using the branch and bound method. Whenever
a better solution is found, the upper cost bound is tightened and
the search for a better solution continues.
The starting assumption is that the value to minimize is less than
Upper and that any value less than Lower can be considered as a
solution. Moreover, solutions whose minimized values are closer
than Percent % are considered equal. Every time a new better
solution is found, the event 280 is raised, its default handler
prints the current cost.
This predicate is to be used for optimization problems when the whole
search space is too large or when a suboptimal solution is sufficient.
Fail Conditions
Fails if Goal fails.
Resatisfiable
No.
See Also
min_max / 2, min_max / 4, min_max / 5, min_max / 6, min_max / 8, minimize / 2, minimize / 4, minimize / 6, minimize / 8, minimize_bound_check / 0