<s>
MeCab	B-General_Concept
is	O
an	O
open-source	B-Application
text	O
segmentation	O
library	O
for	O
use	O
with	O
text	O
written	O
in	O
the	O
Japanese	O
language	O
originally	O
developed	O
by	O
the	O
Nara	O
Institute	O
of	O
Science	O
and	O
Technology	O
and	O
currently	O
maintained	O
by	O
Taku	O
Kudou	O
( 工藤拓	O
)	O
as	O
part	O
of	O
his	O
work	O
on	O
the	B-Application
Google	I-Application
Japanese	O
Input	O
project	O
.	O
</s>
<s>
The	O
software	O
was	O
originally	O
based	O
on	O
ChaSen	B-General_Concept
and	O
was	O
developed	O
under	O
the	O
name	O
ChaSenTNG	O
,	O
but	O
now	O
it	O
is	O
developed	O
independently	O
from	O
ChaSen	B-General_Concept
and	O
was	O
rewritten	O
from	O
scratch	O
.	O
</s>
<s>
MeCab	B-General_Concept
's	O
analysis	O
accuracy	O
is	O
comparable	O
to	O
ChaSen	B-General_Concept
,	O
and	O
its	O
analysis	O
speed	O
is	O
3	O
–	O
4	O
times	O
faster	O
on	O
average	O
.	O
</s>
<s>
MeCab	B-General_Concept
can	O
analyze	O
and	O
segment	O
a	O
sentence	O
into	O
its	O
parts	O
of	O
speech	O
.	O
</s>
<s>
There	O
are	O
several	O
dictionaries	O
available	O
for	O
MeCab	B-General_Concept
,	O
but	O
IPADIC	O
is	O
the	O
most	O
commonly	O
used	O
one	O
as	O
with	O
ChaSen	B-General_Concept
.	O
</s>
<s>
In	O
2007	O
,	O
Google	B-Application
used	O
MeCab	B-General_Concept
to	O
generate	O
n-gram	B-Language
data	O
for	O
a	O
large	O
corpus	O
of	O
Japanese	O
text	O
,	O
which	O
it	O
published	O
on	O
its	O
Google	B-Application
Japan	O
blog	O
.	O
</s>
<s>
MeCab	B-General_Concept
is	O
also	O
used	O
for	O
Japanese	O
input	O
on	O
Mac	O
OS	O
X	O
10.5	O
and	O
10.6	O
,	O
and	O
in	O
iOS	B-Application
since	O
version	O
2.1	O
.	O
</s>
<s>
Besides	O
segmenting	O
the	O
text	O
,	O
MeCab	B-General_Concept
also	O
lists	O
the	O
part	O
of	O
speech	O
of	O
the	O
word	O
,	O
and	O
,	O
if	O
applicable	O
and	O
in	O
the	O
dictionary	O
,	O
its	O
pronunciation	O
.	O
</s>
<s>
MeCab	B-General_Concept
also	O
supports	O
several	O
output	O
formats	O
;	O
one	O
of	O
which	O
,	O
,	O
outputs	O
tab-separated	B-Protocol
values	I-Protocol
in	O
a	O
format	O
that	O
programs	O
written	O
for	O
ChaSen	B-General_Concept
can	O
use	O
.	O
</s>
