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SmartTrace: Finding similar trajectories in smartphone networks without disclosing the traces

8 years 2 months ago
SmartTrace: Finding similar trajectories in smartphone networks without disclosing the traces
—In this demonstration paper, we present a powerful distributed framework for finding similar trajectories in a smartphone network, without disclosing the traces of participating users. Our framework, exploits opportunistic and participatory sensing in order to quickly answer queries of the form: “Report objects (i.e., trajectories) that follow a similar spatio-temporal motion to Q, where Q is some query trajectory.” SmartTrace, relies on an in-situ data storage model, where geo-location data is recorded locally on smartphones for both performance and privacy reasons. SmartTrace then deploys an efficient top-K query processing algorithm that exploits distributed trajectory similarity measures, resilient to spatial and temporal noise, in order to derive the most relevant answers to Q quickly and efficiently. Our demonstration shows how the SmartTrace algorithmics are ported on a network of Android-based smartphone devices with impressive query response times. To demonstrate the...
Costandinos Costa, Christos Laoudias, Demetrios Ze
Added 29 Aug 2011
Updated 29 Aug 2011
Type Journal
Year 2011
Where ICDE
Authors Costandinos Costa, Christos Laoudias, Demetrios Zeinalipour-Yazti, Dimitrios Gunopulos
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