<s>
Computational	B-General_Concept
semantics	I-General_Concept
is	O
the	O
study	O
of	O
how	O
to	O
automate	O
the	O
process	O
of	O
constructing	O
and	O
reasoning	O
with	O
meaning	B-Application
representations	I-Application
of	O
natural	O
language	O
expressions	O
.	O
</s>
<s>
It	O
consequently	O
plays	O
an	O
important	O
role	O
in	O
natural-language	B-Language
processing	I-Language
and	O
computational	O
linguistics	O
.	O
</s>
<s>
Some	O
traditional	O
topics	O
of	O
interest	O
are	O
:	O
construction	O
of	O
meaning	B-Application
representations	I-Application
,	O
semantic	O
underspecification	O
,	O
anaphora	O
resolution	O
,	O
presupposition	O
projection	O
,	O
and	O
quantifier	O
scope	O
resolution	O
.	O
</s>
<s>
Methods	O
employed	O
usually	O
draw	O
from	O
formal	O
semantics	B-Application
or	O
statistical	B-General_Concept
semantics	I-General_Concept
.	O
</s>
<s>
Computational	B-General_Concept
semantics	I-General_Concept
has	O
points	O
of	O
contact	O
with	O
the	O
areas	O
of	O
lexical	O
semantics	B-Application
(	O
word-sense	B-General_Concept
disambiguation	I-General_Concept
and	O
semantic	O
role	O
labeling	O
)	O
,	O
discourse	O
semantics	B-Application
,	O
knowledge	O
representation	O
and	O
automated	O
reasoning	O
(	O
in	O
particular	O
,	O
automated	B-Application
theorem	I-Application
proving	I-Application
)	O
.	O
</s>
<s>
Since	O
1999	O
there	O
has	O
been	O
an	O
ACL	O
special	O
interest	O
group	O
on	O
computational	B-General_Concept
semantics	I-General_Concept
,	O
SIGSEM	O
.	O
</s>
