<s>
In	O
information	B-Library
retrieval	I-Library
,	O
dwell	B-Application
time	I-Application
denotes	O
the	O
time	O
which	O
a	O
user	O
spends	O
viewing	O
a	O
document	O
after	O
clicking	O
a	O
link	O
on	O
a	O
search	B-Application
engine	I-Application
results	O
page	O
(	O
SERP	O
)	O
.	O
</s>
<s>
Dwell	B-Application
time	I-Application
is	O
the	O
duration	O
between	O
when	O
a	O
user	O
clicks	O
on	O
a	O
search	B-Application
engine	I-Application
result	O
,	O
and	O
when	O
the	O
user	O
returns	O
from	O
that	O
result	O
,	O
or	O
is	O
otherwise	O
seen	O
to	O
have	O
left	O
the	O
result	O
.	O
</s>
<s>
Short	O
dwell	B-Application
times	I-Application
indicate	O
the	O
user	O
's	O
query	B-Library
intent	O
was	O
not	O
satisfied	O
by	O
viewing	O
the	O
result	O
.	O
</s>
<s>
Long	O
dwell	B-Application
times	I-Application
indicate	O
the	O
user	O
's	O
query	B-Library
intent	O
was	O
satisfied	O
.	O
</s>
<s>
Google	B-Application
has	O
used	O
dwell	B-Application
time	I-Application
in	O
page	O
ranking	O
.	O
</s>
