<s>
A	O
committee	B-Algorithm
machine	I-Algorithm
is	O
a	O
type	O
of	O
artificial	B-Architecture
neural	I-Architecture
network	I-Architecture
using	O
a	O
divide	O
and	O
conquer	O
strategy	O
in	O
which	O
the	O
responses	O
of	O
multiple	O
neural	B-Architecture
networks	I-Architecture
(	O
experts	O
)	O
are	O
combined	O
into	O
a	O
single	O
response	O
.	O
</s>
<s>
The	O
combined	O
response	O
of	O
the	O
committee	B-Algorithm
machine	I-Algorithm
is	O
supposed	O
to	O
be	O
superior	O
to	O
those	O
of	O
its	O
constituent	O
experts	O
.	O
</s>
<s>
Compare	O
with	O
ensembles	B-Algorithm
of	I-Algorithm
classifiers	I-Algorithm
.	O
</s>
<s>
In	O
this	O
class	O
of	O
committee	B-Algorithm
machines	I-Algorithm
,	O
the	O
responses	O
of	O
several	O
predictors	O
(	O
experts	O
)	O
are	O
combined	O
by	O
means	O
of	O
a	O
mechanism	O
that	O
does	O
not	O
involve	O
the	O
input	O
signal	O
,	O
hence	O
the	O
designation	O
static	O
.	O
</s>
<s>
In	O
ensemble	B-General_Concept
averaging	I-General_Concept
,	O
outputs	O
of	O
different	O
predictors	O
are	O
linearly	O
combined	O
to	O
produce	O
an	O
overall	O
output	O
.	O
</s>
<s>
In	O
boosting	B-Algorithm
,	O
a	O
weak	O
algorithm	O
is	O
converted	O
into	O
one	O
that	O
achieves	O
arbitrarily	O
high	O
accuracy	O
.	O
</s>
<s>
In	O
this	O
second	O
class	O
of	O
committee	B-Algorithm
machines	I-Algorithm
,	O
the	O
input	O
signal	O
is	O
directly	O
involved	O
in	O
actuating	O
the	O
mechanism	O
that	O
integrates	O
the	O
outputs	O
of	O
the	O
individual	O
experts	O
into	O
an	O
overall	O
output	O
,	O
hence	O
the	O
designation	O
dynamic	O
.	O
</s>
<s>
In	O
mixture	B-Algorithm
of	I-Algorithm
experts	I-Algorithm
,	O
the	O
individual	O
responses	O
of	O
the	O
experts	O
are	O
non-linearly	O
combined	O
by	O
means	O
of	O
a	O
single	O
gating	O
network	O
.	O
</s>
<s>
In	O
hierarchical	O
mixture	B-Algorithm
of	I-Algorithm
experts	I-Algorithm
,	O
the	O
individual	O
responses	O
of	O
the	O
individual	O
experts	O
are	O
non-linearly	O
combined	O
by	O
means	O
of	O
several	O
gating	O
networks	O
arranged	O
in	O
a	O
hierarchical	O
fashion	O
.	O
</s>
