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Differential Privacy
A guarantee stated as a divergence bound, the mechanisms that meet it, and what composition costs across repeated queries.
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The utility of candidate
r
r
r
is the number of records in the dataset that prefer
r
r
r
.
Give the utility sensitivity
Δ
u
\Delta u
Δ
u
under add/remove.
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r
u
( )
x
n
√
⌫
AC
7
8
9
+
4
5
6
−
1
2
3
×
0
.
a
b
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