<s>
Social	B-Algorithm
cognitive	I-Algorithm
optimization	I-Algorithm
(	O
SCO	O
)	O
is	O
a	O
population-based	O
metaheuristic	B-Algorithm
optimization	O
algorithm	O
which	O
was	O
developed	O
in	O
2002	O
.	O
</s>
<s>
It	O
has	O
been	O
used	O
for	O
solving	O
continuous	O
optimization	O
,	O
integer	B-Algorithm
programming	I-Algorithm
,	O
and	O
combinatorial	O
optimization	O
problems	O
.	O
</s>
<s>
It	O
has	O
been	O
incorporated	O
into	O
the	O
extension	O
of	O
Calc	O
in	O
Apache	B-Application
OpenOffice	I-Application
.	O
</s>
<s>
particle	B-Algorithm
swarm	I-Algorithm
optimization	I-Algorithm
,	O
SCO	O
can	O
achieving	O
high-quality	O
solutions	O
as	O
is	O
small	O
,	O
even	O
as	O
.	O
</s>
<s>
For	O
example	O
,	O
SCO	O
was	O
hybridized	O
with	O
differential	B-Algorithm
evolution	I-Algorithm
to	O
obtain	O
better	O
results	O
than	O
individual	O
algorithms	O
on	O
a	O
common	O
set	O
of	O
benchmark	O
problems	O
.	O
</s>
