<s>
In	O
mathematics	O
,	O
the	O
Wiener	B-Algorithm
series	I-Algorithm
,	O
or	O
Wiener	O
G-functional	O
expansion	O
,	O
originates	O
from	O
the	O
1958	O
book	O
of	O
Norbert	O
Wiener	O
.	O
</s>
<s>
It	O
is	O
an	O
orthogonal	O
expansion	O
for	O
nonlinear	O
functionals	O
closely	O
related	O
to	O
the	O
Volterra	B-Algorithm
series	I-Algorithm
and	O
having	O
the	O
same	O
relation	O
to	O
it	O
as	O
an	O
orthogonal	O
Hermite	O
polynomial	O
expansion	O
has	O
to	O
a	O
power	O
series	O
.	O
</s>
<s>
The	O
analogue	O
of	O
the	O
coefficients	O
are	O
referred	O
to	O
as	O
Wiener	B-Algorithm
kernels	I-Algorithm
.	O
</s>
<s>
The	O
Wiener	B-Algorithm
series	I-Algorithm
is	O
important	O
in	O
nonlinear	O
system	O
identification	O
.	O
</s>
<s>
The	O
Wiener	B-Algorithm
series	I-Algorithm
has	O
been	O
applied	O
mostly	O
to	O
the	O
identification	O
of	O
biological	O
systems	O
,	O
especially	O
in	O
neuroscience	O
.	O
</s>
<s>
The	O
name	O
Wiener	B-Algorithm
series	I-Algorithm
is	O
almost	O
exclusively	O
used	O
in	O
system	O
theory	O
.	O
</s>
<s>
The	O
Wiener	B-Algorithm
series	I-Algorithm
should	O
not	O
be	O
confused	O
with	O
the	O
Wiener	O
filter	O
,	O
which	O
is	O
another	O
algorithm	O
developed	O
by	O
Norbert	O
Wiener	O
used	O
in	O
signal	O
processing	O
.	O
</s>
