<s>
In	O
queueing	O
theory	O
,	O
a	O
discipline	O
within	O
the	O
mathematical	O
theory	O
of	O
probability	O
,	O
Buzen	B-Algorithm
's	I-Algorithm
algorithm	I-Algorithm
(	O
or	O
convolution	B-Algorithm
algorithm	I-Algorithm
)	O
is	O
an	O
algorithm	O
for	O
calculating	O
the	O
normalization	O
constant	O
G(N )	O
in	O
the	O
Gordon	O
–	O
Newell	O
theorem	O
.	O
</s>
<s>
Buzen	B-Algorithm
's	I-Algorithm
algorithm	I-Algorithm
"	O
computes	O
G(1 )	O
,	O
G(2 )	O
,	O
...	O
,	O
G(N )	O
using	O
a	O
total	O
of	O
NM	O
multiplications	O
and	O
NM	O
additions.	O
"	O
</s>
<s>
Buzen	B-Algorithm
's	I-Algorithm
algorithm	I-Algorithm
is	O
an	O
efficient	O
method	O
to	O
compute	O
G(N )	O
.	O
</s>
<s>
The	O
coefficients	O
g(n,m )	O
,	O
computed	O
using	O
Buzen	B-Algorithm
's	I-Algorithm
algorithm	I-Algorithm
,	O
can	O
also	O
be	O
used	O
to	O
compute	O
marginal	O
distributions	O
and	O
expected	O
number	O
of	O
customers	O
at	O
each	O
node	O
.	O
</s>
