<s>
Implicit	B-General_Concept
data	I-General_Concept
collection	I-General_Concept
is	O
used	O
in	O
human	O
–	O
computer	O
interaction	O
to	O
gather	O
data	O
about	O
the	O
user	O
in	O
an	O
implicit	O
,	O
non-invasive	O
way	O
.	O
</s>
<s>
The	O
collection	O
of	O
user-related	O
data	O
in	O
human	O
–	O
computer	O
interaction	O
is	O
used	O
to	O
adapt	O
the	O
computer	B-Application
interface	I-Application
to	O
the	O
end	O
user	O
.	O
</s>
<s>
The	O
user	O
model	O
is	O
then	O
used	O
to	O
help	O
the	O
application	O
to	O
filter	B-Application
the	I-Application
information	I-Application
for	O
the	O
end	O
user	O
.	O
</s>
<s>
Such	O
systems	O
are	O
useful	O
in	O
recommender	B-Application
applications	I-Application
,	O
military	O
applications	O
(	O
implicit	O
stress	O
detection	O
)	O
and	O
others	O
.	O
</s>
