<s>
The	O
intersection	B-Operating_System
algorithm	I-Operating_System
is	O
an	O
agreement	O
algorithm	O
used	O
to	O
select	O
sources	O
for	O
estimating	O
accurate	O
time	O
from	O
a	O
number	O
of	O
noisy	O
time	O
sources	O
.	O
</s>
<s>
It	O
forms	O
part	O
of	O
the	O
modern	O
Network	B-Protocol
Time	I-Protocol
Protocol	I-Protocol
.	O
</s>
<s>
The	O
intersection	B-Operating_System
algorithm	I-Operating_System
returns	O
an	O
interval	O
that	O
includes	O
that	O
returned	O
by	O
Marzullo	O
's	O
algorithm	O
but	O
may	O
be	O
larger	O
since	O
it	O
will	O
include	O
the	O
center	O
points	O
.	O
</s>
<s>
The	O
intersection	B-Operating_System
algorithm	I-Operating_System
begins	O
by	O
creating	O
a	O
table	O
of	O
tuples	O
<offset, type>	O
.	O
</s>
