<s>
Cosmology	B-Operating_System
@Home	I-Operating_System
is	O
a	O
volunteer	B-Operating_System
computing	I-Operating_System
project	O
that	O
uses	O
the	O
BOINC	B-Operating_System
platform	O
and	O
was	O
once	O
run	O
at	O
the	O
Departments	O
of	O
Astronomy	O
and	O
Physics	O
at	O
the	O
University	O
of	O
Illinois	O
at	O
Urbana-Champaign	O
.	O
</s>
<s>
The	O
goal	O
of	O
Cosmology	B-Operating_System
@Home	I-Operating_System
is	O
to	O
compare	O
theoretical	O
models	O
of	O
the	O
universe	O
to	O
the	O
data	O
measured	O
to	O
date	O
and	O
search	O
for	O
the	O
model	O
that	O
best	O
matches	O
it	O
.	O
</s>
<s>
results	O
from	O
Cosmology	B-Operating_System
@Home	I-Operating_System
can	O
help	O
design	O
future	O
cosmological	O
observations	O
and	O
experiments	O
.	O
</s>
<s>
results	O
from	O
Cosmology	B-Operating_System
@Home	I-Operating_System
can	O
help	O
prepare	O
for	O
the	O
analysis	O
of	O
future	O
data	O
sets	O
,	O
e.g.	O
</s>
<s>
The	O
goal	O
of	O
Cosmology	B-Operating_System
@Home	I-Operating_System
is	O
to	O
search	O
for	O
the	O
model	O
that	O
best	O
describes	O
our	O
Universe	O
and	O
to	O
find	O
the	O
range	O
of	O
models	O
that	O
agree	O
with	O
the	O
available	O
astronomical	O
and	O
particle	O
physics	O
data	O
.	O
</s>
<s>
The	O
models	O
generated	O
by	O
Cosmology	B-Operating_System
@Home	I-Operating_System
can	O
be	O
compared	O
to	O
measurements	O
of	O
the	O
universe	O
's	O
expansion	O
speed	O
from	O
the	O
Hubble	O
Space	O
Telescope	O
as	O
well	O
as	O
fluctuations	O
in	O
the	O
cosmic	O
background	O
radiation	O
as	O
measured	O
by	O
the	O
Wilkinson	O
Microwave	O
Anisotropy	O
Probe	O
.	O
</s>
<s>
Cosmology	B-Operating_System
@Home	I-Operating_System
uses	O
an	O
innovative	O
way	O
of	O
using	O
machine	O
learning	O
to	O
effectively	O
parallelize	O
a	O
large	O
computational	O
task	O
that	O
involves	O
many	O
inherently	O
sequential	O
calculations	O
over	O
a	O
substantial	O
number	O
of	O
distributed	O
computers	O
.	O
</s>
<s>
For	O
any	O
given	O
class	O
of	O
theoretically	O
possible	O
models	O
of	O
the	O
Universe	O
,	O
Cosmology	B-Operating_System
@Home	I-Operating_System
generates	O
tens	O
of	O
thousands	O
of	O
example	O
Universes	O
and	O
packages	O
the	O
cosmological	O
parameters	O
describing	O
these	O
Universes	O
as	O
work	O
units	O
.	O
</s>
<s>
This	O
result	O
is	O
then	O
sent	O
back	O
and	O
archived	O
at	O
the	O
Cosmology	B-Operating_System
@Home	I-Operating_System
server	O
.	O
</s>
<s>
When	O
a	O
sufficient	O
number	O
of	O
example	O
Universes	O
have	O
been	O
simulated	O
,	O
a	O
machine	O
learning	O
algorithm	O
called	O
Pico	O
,	O
which	O
was	O
developed	O
by	O
the	O
project	O
scientists	O
of	O
Cosmology	B-Operating_System
@Home	I-Operating_System
for	O
this	O
purpose	O
,	O
learns	O
from	O
these	O
example	O
calculations	O
how	O
to	O
do	O
the	O
simulation	O
for	O
any	O
Universe	O
similar	O
to	O
the	O
example	O
Universes	O
.	O
</s>
<s>
The	O
Cosmology	B-Operating_System
@Home	I-Operating_System
application	O
is	O
proprietary	O
.	O
</s>
