<s>
The	O
Open	O
Neural	B-Architecture
Network	I-Architecture
Exchange	O
(	O
ONNX	B-Application
)	O
 [  ] 	O
is	O
an	O
open-source	B-Application
artificial	B-Application
intelligence	I-Application
ecosystem	O
of	O
technology	O
companies	O
and	O
research	O
organizations	O
that	O
establish	O
open	O
standards	O
for	O
representing	O
machine	O
learning	O
algorithms	O
and	O
software	O
tools	O
to	O
promote	O
innovation	O
and	O
collaboration	O
in	O
the	O
AI	B-Application
sector	O
.	O
</s>
<s>
ONNX	B-Application
is	O
available	O
on	O
GitHub	B-Application
.	O
</s>
<s>
ONNX	B-Application
was	O
originally	O
named	O
Toffee	O
and	O
was	O
developed	O
by	O
the	O
PyTorch	B-Algorithm
team	O
at	O
Facebook	B-Application
.	I-Application
</s>
<s>
In	O
September	O
2017	O
it	O
was	O
renamed	O
to	O
ONNX	B-Application
and	O
announced	O
by	O
Facebook	B-Application
and	O
Microsoft	O
.	O
</s>
<s>
In	O
October	O
2017	O
,	O
Microsoft	O
announced	O
that	O
it	O
would	O
add	O
its	O
Cognitive	B-Algorithm
Toolkit	I-Algorithm
and	O
Project	O
Brainwave	O
platform	O
to	O
the	O
initiative	O
.	O
</s>
<s>
In	O
November	O
2019	O
ONNX	B-Application
was	O
accepted	O
as	O
graduate	O
project	O
in	O
Linux	B-Operating_System
Foundation	I-Operating_System
AI	B-Application
.	O
</s>
<s>
In	O
October	O
2020	O
Zetane	O
Systems	O
became	O
a	O
member	O
of	O
the	O
ONNX	B-Application
ecosystem	O
.	O
</s>
<s>
Allow	O
hardware	O
vendors	O
and	O
others	O
to	O
improve	O
the	O
performance	O
of	O
artificial	B-Architecture
neural	I-Architecture
networks	I-Architecture
of	O
multiple	O
frameworks	O
at	O
once	O
by	O
targeting	O
the	O
ONNX	B-Application
representation	O
.	O
</s>
<s>
ONNX	B-Application
provides	O
definitions	O
of	O
an	O
extensible	O
computation	O
graph	O
model	O
,	O
built-in	O
operators	O
and	O
standard	O
data	O
types	O
,	O
focused	O
on	O
inferencing	O
(	O
evaluation	O
)	O
.	O
</s>
<s>
Each	O
computation	O
dataflow	B-Application
graph	O
is	O
a	O
list	O
of	O
nodes	O
that	O
form	O
an	O
acyclic	O
graph	O
.	O
</s>
<s>
Built-in	O
operators	O
are	O
to	O
be	O
available	O
on	O
each	O
ONNX-supporting	O
framework	O
.	O
</s>
