| Summary: | 碩士 === 國立中正大學 === 電機工程研究所 === 102 === The usage of Location-Based Services (LBS) holds a potential privacy issue.
People exchange their location for information relative to this location. While
most people perceive these information exchange services as useful, there are
people who see their privacy threatened by this. In this thesis, we propose two
algorithms, k-query to solve the privacy issue for sporadic query-typed LBS,
and k-path for continuous location tracking-typed LBS. We take inspiration in
k-anonymity to hide our location or trajectory among k locations or
trajectories. We introduce our simulator as a tool to test several strategies to
hide users' locations. Afterwards, we give an evaluation about the effectiveness
of several approaches by using the simulator and data provided by the GeoLife
data set.
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