<s>
The	O
Hilltop	B-Application
algorithm	I-Application
is	O
an	O
algorithm	O
used	O
to	O
find	O
documents	O
relevant	O
to	O
a	O
particular	O
keyword	O
topic	O
in	O
news	O
search	O
.	O
</s>
<s>
Created	O
by	O
Krishna	O
Bharat	O
while	O
he	O
was	O
at	O
Compaq	O
Systems	O
Research	O
Center	O
and	O
George	O
A	O
.	O
Mihăilă	O
University	O
of	O
Toronto	O
,	O
it	O
was	O
acquired	O
by	O
Google	B-Application
for	O
use	O
in	O
its	O
news	O
results	O
in	O
February	O
2003	O
.	O
</s>
<s>
When	O
you	O
enter	O
a	O
query	O
or	O
keyword	O
into	O
the	B-Application
Google	I-Application
news	O
search	O
engine	O
,	O
the	O
Hilltop	B-Application
algorithm	I-Application
helps	O
to	O
find	O
relevant	O
keywords	O
whose	O
results	O
are	O
more	O
informative	O
about	O
the	O
query	O
or	O
keyword	O
.	O
</s>
