<s>
Microsoft	B-Algorithm
Cognitive	I-Algorithm
Toolkit	I-Algorithm
,	O
previously	O
known	O
as	O
CNTK	B-Algorithm
and	O
sometimes	O
styled	O
as	O
The	O
Microsoft	B-Algorithm
Cognitive	I-Algorithm
Toolkit	I-Algorithm
,	O
is	O
a	O
deprecated	O
deep	B-Algorithm
learning	I-Algorithm
framework	B-Architecture
developed	O
by	O
Microsoft	O
Research	O
.	O
</s>
<s>
Microsoft	B-Algorithm
Cognitive	I-Algorithm
Toolkit	I-Algorithm
describes	O
neural	B-Architecture
networks	I-Architecture
as	O
a	O
series	O
of	O
computational	O
steps	O
via	O
a	O
directed	O
graph	O
.	O
</s>
