<s>
Location-allocation	B-Application
refers	O
to	O
algorithms	O
used	O
primarily	O
in	O
a	O
geographic	B-Application
information	I-Application
system	I-Application
to	O
determine	O
an	O
optimal	O
location	O
for	O
one	O
or	O
more	O
facilities	O
that	O
will	O
service	O
demand	O
from	O
a	O
given	O
set	O
of	O
points	O
.	O
</s>
<s>
Location-allocation	B-Application
models	O
aim	O
to	O
locate	O
the	O
optimal	O
location	O
for	O
each	O
facility	O
.	O
</s>
