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Feature Request
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Resolution: Done
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Blocker
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None
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None
In VRP, when there are 150 000 customers, there's little point in swapping customer A and Z if they are on oppose ends of the region. So when A is selected as primary entity, we want to have a high chance of selecting a secondary entity close to A (although the chance to select something far should be almost zero but not zero).
Configuration might look something like this:
<swapMoveSelector> <primary entitySelector id="leader"/> <secondary nearByEntitySelector> <mimicEntitySelector ref="leader"/> <nearByFinderClass>...NearByFinder</> <randomDistribution>NORMAL || GAUSS</> </> </>
The same system might be reused in exam scheduling for course grained moves where one of the entities is a leader:
<cartesianMoveSelector>
<changeMoveSelector>
<entitySelector id="leader"/>
</>
<changeMoveSelector>
<nearByEntitySelector>
<mimicEntitySelector ref="leader"/>
<nearByFinderClass>...MyNearByFinder</>
<randomDistribution>NORMAL || GAUSS</>
</>
</>
</>
MyNearByFinder could have an interface something like this
Object nearByEntity(Object mainEntity, ScoreDirector scoreDirector);
but what I really want is to have planner configuration deal with the NORMAL || GAUSS randomDistribution directly, so I want this too:
// 0 < nearByIndex < entityCount // nearByIndex has a a high chance of being 1, 2, ... and a low chance of being ..., entityCount - 2, entityCount - 1. Object nearByEntity(Object mainEntity, int nearByIndex);
- is related to
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- Open
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- relates to
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- Resolved
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PLANNER-211 Beta distribution (Guassian/gauss distribution) in random selection on a ValueRange
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- Resolved
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- Open
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