Re: [rules-users] [Drools Planner] Multi depot CVRP / CVRPTW
Hi Geoffrey,
Do you think it would be possible to integrate the nurse rostering example
with the vrp example? By that I mean to schedule nurses *and* stops in an
optimal way. At the same time.
I'm looking at a home care service problem where there is a need for weekly
schedules for the nurses as well as an ambition to minimize the driving
distance as well.
Is it feasible or is it troublesome to have several planning entities at
the same time?
Regards,
Mats
On Mon, Mar 4, 2013 at 4:49 PM, Mats Norén <mats.noren(a)gmail.com> wrote:
Thanks Geoffrey,
On Mon, Mar 4, 2013 at 4:33 PM, Geoffrey De Smet <ge0ffrey.spam(a)gmail.com>wrote:
>
> The example only does the capacitated vehicle routing problem (VRP +
> capacity limits), not the windowed vehicle routing problem.
>
>
By "your example" I meant the pseudo rule you sent me in a previous mail
and not the cvrp example in drools-planner-examples.
>
> Should I add each CustomerTimeWindow as a fact in the
> VrpSchedule.getProblemFacts?
>
> Yes, so your score rules can exploit it.
> Also, you 'll want to make sure that your score rule penalize "the number
> of minutes that a time window isn't met".
>
>
Ok, by this you mean the difference in minutes from the arrivaltime and
the customer timewindow? i.e., the largest of (arrivalTime - endTime) and
(startTime-arrivalTime) given that (arrivalTime < startTime or arrivalTime
> endTime) ?
Regards,
Mats
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