<s>
The	O
top-nodes	B-Algorithm
algorithm	I-Algorithm
is	O
an	O
algorithm	O
for	O
managing	O
a	O
resource	O
reservation	O
calendar	O
.	O
</s>
<s>
It	O
is	O
used	O
when	O
a	O
resource	O
is	O
shared	O
among	O
many	O
users	O
(	O
for	O
example	O
bandwidth	B-Algorithm
in	O
a	O
telecommunication	O
link	O
,	O
or	O
disk	B-General_Concept
capacity	I-General_Concept
in	O
a	O
large	O
data	B-Operating_System
center	I-Operating_System
)	O
.	O
</s>
