sci.op-research

Dnia Tue, 8 Apr 2008 00:58:29 -0700 (PDT)
minben napisa=C5=82(a):

> On 4=E6=9C=888=E6=97=A5, =E4=B8=8B=E5=8D=883=E6=97=B647=E5=88=86, Wit Jak=
uczun wrote:
> > Dnia Tue, 8 Apr 2008 00:33:23 -0700 (PDT)
> > minben napisa=C5=82(a):
> >
> > > My idea is to define a binary variable Yi,d to describe if a good i
> > > arrives before day d (it can be get from Di and d),and for d=3D1 to
> > > 31,we calculate everyday's storage by adding Yi,d*Wi for all i and
> > > d ,then plus L and minus d*c. At last we let it not larger than T.
> >
> > > But it's so complex and I believe there is some simpler way,but I
> > > can't find it. Can anyone help me?
> >
> > What is complex for you in your idea?
> >
>=20
> For one item Yi,d*Wi it may be calculated for many times (for
> different d),so I think there may be a better way.
Have you conducted any experiments? Do it first then think
about improving your formulation.

Best regards
--=20
[ Wit Jakuczun ]
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