<s>
A	O
self-organizing	B-Data_Structure
list	I-Data_Structure
is	O
a	O
list	O
that	O
reorders	O
its	O
elements	O
based	O
on	O
some	O
self-organizing	O
heuristic	O
to	O
improve	O
average	O
access	B-General_Concept
time	I-General_Concept
.	O
</s>
<s>
The	O
aim	O
of	O
a	O
self-organizing	B-Data_Structure
list	I-Data_Structure
is	O
to	O
improve	O
efficiency	O
of	O
linear	O
search	O
by	O
moving	O
more	O
frequently	O
accessed	O
items	O
towards	O
the	O
head	O
of	O
the	O
list	O
.	O
</s>
<s>
A	O
self-organizing	B-Data_Structure
list	I-Data_Structure
achieves	O
near	O
constant	O
time	O
for	O
element	O
access	O
in	O
the	O
best	O
case	O
.	O
</s>
<s>
A	O
self-organizing	B-Data_Structure
list	I-Data_Structure
uses	O
a	O
reorganizing	O
algorithm	O
to	O
adapt	O
to	O
various	O
query	O
distributions	O
at	O
runtime	O
.	O
</s>
<s>
The	O
concept	O
of	O
self-organizing	B-Data_Structure
lists	I-Data_Structure
has	O
its	O
roots	O
in	O
the	O
idea	O
of	O
activity	O
organization	O
of	O
records	O
in	O
files	O
stored	O
on	O
disks	O
or	O
tapes	O
.	O
</s>
