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Security and Communication Networks
/
2017
/
Article
/
Alg 1
Research Article
An Efficient Context-Aware Privacy Preserving Approach for Smartphones
Algorithm 1
Emission probability generation.
Input:
Markov chain
, sensitive contexts
, privacy threshold
Output:
Emission probabilities
with
(1)
for all
do
(2) compute
by Eq. (
2
);
(3)
end for
(4)
for all
do
(5) construct a linear programming problem as Eq. (
11
);
(6) compute
where
.
(7)
end for