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<div class="moz-cite-prefix">On 11-04-13 18:38, Mats Norén wrote:<br>
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<div dir="ltr">Hi Geoffrey,
<div style="">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. </div>
<div style="">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. <br>
</div>
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That could be multiple entityClasses.<br>
Or it could just be 1 entityClass with multiple variables.<br>
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<div style=""><br>
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<div style="">Is it feasible or is it troublesome to have
several planning entities at the same time?</div>
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Definitely feasible. Local search is designed to be able to deal
with multiple entityClasses.<br>
The Construction heuristics in 5.5 probably don't not support
multiple entityClasses,<br>
but the new implementation of Construction Heuristics in 6 should
support it (although they aren't enabled by default yet for
6.0.0.Beta1 - you have to explicitly define the <placer>
configuration).<br>
Current workaround is to do a simplistic SolutionInitializer OR use
the <placer> api (which will be made the default in the coming
weeks).<br>
<br>
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<div style="">Regards,</div>
<div style="">Mats</div>
<div style=""><br>
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<div class="gmail_quote">On Mon, Mar 4, 2013 at 4:49 PM, Mats
Norén <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:mats.noren@gmail.com" target="_blank">mats.noren@gmail.com</a>></span>
wrote:<br>
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<div dir="ltr">
<div>Thanks Geoffrey,<br>
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<div class="gmail_extra"><br>
<div class="gmail_quote">
<div class="im">On Mon, Mar 4, 2013 at 4:33 PM,
Geoffrey De Smet <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:ge0ffrey.spam@gmail.com"
target="_blank">ge0ffrey.spam@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px
0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> <br>
The example only does the capacitated vehicle
routing problem (VRP + capacity limits), not the
windowed vehicle routing problem.
<div><br>
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<div><br>
By "your example" I meant the pseudo rule you sent
me in a previous mail and not the cvrp example in
drools-planner-examples. <br>
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Should I add each CustomerTimeWindow as
a fact in the
VrpSchedule.getProblemFacts?<br>
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Yes, so your score rules can exploit it.<br>
Also, you 'll want to make sure that your score
rule penalize "the number of minutes that a time
window isn't met".
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<div>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) ?<br>
<br>
</div>
<div>Regards,<br>
Mats<br>
</div>
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