<s>
PRODIGAL	B-Operating_System
(	O
proactive	B-Operating_System
discovery	I-Operating_System
of	I-Operating_System
insider	I-Operating_System
threats	I-Operating_System
using	I-Operating_System
graph	I-Operating_System
analysis	I-Operating_System
and	I-Operating_System
learning	I-Operating_System
)	O
is	O
a	O
computer	O
system	O
for	O
predicting	O
anomalous	O
behavior	O
among	O
humans	O
,	O
by	O
data	B-Application
mining	I-Application
network	O
traffic	O
such	O
as	O
emails	O
,	O
text	O
messages	O
and	O
server	B-Application
log	I-Application
entries	O
.	O
</s>
<s>
It	O
is	O
part	O
of	O
DARPA	O
's	O
Anomaly	B-Algorithm
Detection	I-Algorithm
at	I-Algorithm
Multiple	I-Algorithm
Scales	I-Algorithm
(	O
ADAMS	O
)	O
project	O
.	O
</s>
<s>
It	O
uses	O
graph	O
theory	O
,	O
machine	O
learning	O
,	O
statistical	O
anomaly	B-Algorithm
detection	I-Algorithm
,	O
and	O
high-performance	B-Architecture
computing	I-Architecture
to	O
scan	O
larger	O
sets	O
of	O
data	O
more	O
quickly	O
than	O
in	O
past	O
systems	O
.	O
</s>
