<s>
In	O
computer	B-General_Concept
science	I-General_Concept
,	O
hash	B-Data_Structure
trie	I-Data_Structure
can	O
refer	O
to	O
:	O
</s>
<s>
A	O
space-efficient	O
implementation	O
of	O
a	O
sparse	O
trie	B-General_Concept
,	O
in	O
which	O
the	O
descendants	O
of	O
each	O
node	O
may	O
be	O
interleaved	O
in	O
memory	O
.	O
</s>
<s>
(	O
The	O
name	O
is	O
suggested	O
by	O
a	O
similarity	O
to	O
a	O
closed	O
hash	B-Algorithm
table	I-Algorithm
.	O
)	O
</s>
