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datovky
ds2-notes
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dbf98dde
Commit
dbf98dde
authored
5 years ago
by
Martin Mareš
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Hashing: Clarified theorem on complexity of Cuckoo hashing
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10243df7
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06-hash/hash.tex
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dbf98dde
...
@@ -631,9 +631,11 @@ attempts (this is called insertion timeout), we give up and rehash everything
...
@@ -631,9 +631,11 @@ attempts (this is called insertion timeout), we give up and rehash everything
with new choice of
$
f
$
and~
$
g
$
.
with new choice of
$
f
$
and~
$
g
$
.
\theorem
{
\theorem
{
Let
$
m
\ge
(
2
+
\varepsilon
)
n
$
, insertion timeout be set to
$
\lceil
6
\log
n
\rceil
$
and
Let
$
\varepsilon
>
0
$
be a~fixed constant.
Suppose that
$
m
\ge
(
2
+
\varepsilon
)
n
$
, insertion timeout is set to
$
\lceil
6
\log
n
\rceil
$
, and
$
f
$
,~
$
g
$
chosen at random from a~
$
\lceil
6
\log
n
\rceil
$
-independent family.
$
f
$
,~
$
g
$
chosen at random from a~
$
\lceil
6
\log
n
\rceil
$
-independent family.
Then the expected time complexity of
\alg
{
Insert
}
is
$
\O
(
1
)
$
.
Then the expected time complexity of
\alg
{
Insert
}
is
$
\O
(
1
)
$
, where the constant
in~
$
\O
$
depends on~
$
\varepsilon
$
.
}
}
\note
{
\note
{
...
...
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