<s>
ADMB	B-Application
or	O
AD	B-Application
Model	I-Application
Builder	I-Application
is	O
a	O
free	B-Application
and	I-Application
open	I-Application
source	I-Application
software	I-Application
suite	O
for	O
non-linear	O
statistical	O
modeling	O
.	O
</s>
<s>
It	O
was	O
created	O
by	O
David	O
Fournier	O
and	O
now	O
being	O
developed	O
by	O
the	O
ADMB	B-Application
Project	O
,	O
a	O
creation	O
of	O
the	O
non-profit	O
ADMB	B-Application
Foundation	O
.	O
</s>
<s>
The	O
"	O
AD	O
"	O
in	O
AD	B-Application
Model	I-Application
Builder	I-Application
refers	O
to	O
the	O
automatic	B-Algorithm
differentiation	I-Algorithm
capabilities	O
that	O
come	O
from	O
the	O
AUTODIF	O
Library	O
,	O
a	O
C++	B-Language
language	I-Language
extension	O
also	O
created	O
by	O
David	O
Fournier	O
,	O
which	O
implements	O
reverse	O
mode	O
automatic	B-Algorithm
differentiation	I-Algorithm
.	O
</s>
<s>
A	O
related	O
software	O
package	O
,	O
ADMB-RE	O
,	O
provides	O
additional	O
support	O
for	O
modeling	O
random	B-General_Concept
effects	I-General_Concept
.	O
</s>
<s>
Markov	B-General_Concept
chain	I-General_Concept
Monte	I-General_Concept
Carlo	I-General_Concept
methods	I-General_Concept
are	O
integrated	O
into	O
the	O
ADMB	B-Application
software	O
,	O
making	O
it	O
useful	O
for	O
Bayesian	O
modeling	O
.	O
</s>
<s>
In	O
addition	O
to	O
Bayesian	O
hierarchical	O
models	O
,	O
ADMB	B-Application
provides	O
support	O
for	O
modeling	O
random	B-General_Concept
effects	I-General_Concept
in	O
a	O
frequentist	O
framework	O
using	O
Laplace	O
approximation	O
and	O
importance	O
sampling	O
.	O
</s>
<s>
ADMB	B-Application
is	O
widely	O
used	O
by	O
scientists	O
in	O
academic	O
institutions	O
,	O
government	O
agencies	O
,	O
and	O
international	O
commissions	O
,	O
most	O
commonly	O
for	O
ecological	O
modeling	O
.	O
</s>
<s>
ADMB	B-Application
is	O
freely	O
available	O
under	O
the	O
New	O
BSD	B-Operating_System
License	O
,	O
</s>
<s>
with	O
versions	O
available	O
for	O
Windows	B-Application
,	O
Linux	B-Application
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
and	O
OpenSolaris	B-Operating_System
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
Source	O
code	O
for	O
ADMB	B-Application
was	O
made	O
publicly	O
available	O
in	O
March	O
2009	O
.	O
</s>
<s>
development	O
of	O
the	O
AUTODIF	O
Library	O
,	O
and	O
ultimately	O
ADMB	B-Application
.	O
</s>
<s>
1989	O
,	O
C++	B-Language
compilers	O
were	O
available	O
for	O
personal	O
computers	O
.	O
</s>
<s>
all	O
functions	O
in	O
the	O
standard	O
C++	B-Language
math	O
library	O
.	O
</s>
<s>
effects	O
into	O
ADMB	B-Application
.	O
</s>
<s>
to	O
coordinate	O
development	O
and	O
promote	O
use	O
of	O
ADMB	B-Application
.	O
</s>
<s>
Foundation	O
for	O
the	O
funds	O
to	O
purchase	O
ADMB	B-Application
from	O
Otter	O
Research	O
.	O
</s>
<s>
purchase	O
the	O
rights	O
to	O
ADMB	B-Application
.	O
</s>
<s>
on	O
the	O
ADMB	B-Application
Project	O
website	O
in	O
December	O
2008	O
.	O
</s>
<s>
ADMB	B-Application
was	O
supported	O
on	O
all	O
common	O
operating	B-General_Concept
systems	I-General_Concept
(	O
Windows	B-Application
,	O
</s>
<s>
automating	O
the	O
building	O
of	O
ADMB	B-Application
for	O
different	O
platforms	O
,	O
</s>
<s>
for	O
use	O
in	O
random	B-General_Concept
effects	I-General_Concept
models	I-General_Concept
.	O
</s>
