<s>
The	O
control	B-Algorithm
variates	I-Algorithm
method	O
is	O
a	O
variance	B-Algorithm
reduction	I-Algorithm
technique	O
used	O
in	O
Monte	B-Algorithm
Carlo	I-Algorithm
methods	I-Algorithm
.	O
</s>
<s>
The	O
greater	O
the	O
value	O
of	O
,	O
the	O
greater	O
the	O
variance	B-Algorithm
reduction	I-Algorithm
achieved	O
.	O
</s>
<s>
This	O
is	O
equivalent	O
to	O
solving	O
a	O
certain	O
least	B-Algorithm
squares	I-Algorithm
system	O
;	O
therefore	O
this	O
technique	O
is	O
also	O
known	O
as	O
regression	B-Algorithm
sampling	I-Algorithm
.	O
</s>
<s>
using	O
Monte	B-Algorithm
Carlo	I-Algorithm
integration	I-Algorithm
.	O
</s>
<s>
The	O
variance	O
was	O
significantly	O
reduced	O
after	O
using	O
the	O
control	B-Algorithm
variates	I-Algorithm
technique	O
.	O
</s>
