<s>
FreeHAL	B-Operating_System
was	O
a	O
volunteer	B-Operating_System
computing	I-Operating_System
project	O
to	O
build	O
a	O
self-learning	O
chatbot	B-Protocol
.	O
</s>
<s>
Originally	O
,	O
the	O
program	O
was	O
called	O
JEliza	O
referring	O
to	O
the	O
chatbot	B-Protocol
ELIZA	B-Application
by	O
Joseph	O
Weizenbaum	O
.	O
</s>
<s>
The	O
J	O
stood	O
for	O
Java	B-Language
because	O
JEliza	O
has	O
first	O
been	O
programmed	O
in	O
Java	B-Language
.	O
</s>
<s>
In	O
May	O
2008	O
,	O
the	O
program	O
has	O
been	O
renamed	O
to	O
FreeHAL	B-Operating_System
because	O
the	O
programming	O
language	O
has	O
changed	O
.	O
</s>
<s>
FreeHAL	B-Operating_System
uses	O
a	O
semantic	O
network	O
and	O
technologies	O
like	O
pattern	O
recognition	O
,	O
stemming	B-General_Concept
,	O
part	O
of	O
speech	O
databases	O
and	O
Hidden	O
Markov	O
Models	O
in	O
order	O
to	O
imitate	O
a	O
human	O
behaviour	O
.	O
</s>
<s>
FreeHAL	B-Operating_System
learns	O
autonomously	O
.	O
</s>
<s>
By	O
using	O
the	O
BOINC	B-Operating_System
platform	O
,	O
new	O
semantic	O
networks	O
for	O
the	O
program	O
are	O
built	O
.	O
</s>
<s>
FreeHAL	B-Operating_System
@home	O
appears	O
to	O
have	O
terminated	O
operations	O
.	O
</s>
<s>
In	O
2008	O
,	O
the	O
program	O
won	O
the	O
first	O
prize	O
in	O
the	O
category	O
"	O
Most	O
Popular	O
"	O
at	O
the	O
Chatterbox	O
Challenge	O
,	O
a	O
yearly	O
competition	O
between	O
different	O
similar	O
chatbots	B-Protocol
.	O
</s>
