<s>
Known-item	B-General_Concept
search	I-General_Concept
is	O
a	O
specialization	O
of	O
information	O
exploration	O
which	O
represents	O
the	O
activities	O
carried	O
out	O
by	O
searchers	O
who	O
have	O
a	O
particular	O
item	O
in	O
mind	O
.	O
</s>
<s>
Although	O
the	O
concept	O
of	O
known-item	B-General_Concept
search	I-General_Concept
originated	O
in	O
library	O
science	O
,	O
it	O
is	O
now	O
applied	O
in	O
the	O
context	O
of	O
web	B-Application
search	I-Application
and	O
other	O
online	O
search	O
activities	O
.	O
</s>
<s>
Known-item	B-General_Concept
search	I-General_Concept
is	O
distinguished	O
from	O
exploratory	O
search	O
,	O
in	O
which	O
a	O
searcher	O
is	O
unfamiliar	O
with	O
the	O
domain	O
of	O
their	O
search	O
goal	O
,	O
unsure	O
about	O
the	O
ways	O
to	O
achieve	O
their	O
goal	O
,	O
and/or	O
unsure	O
about	O
what	O
their	O
goal	O
is	O
.	O
</s>
