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Preventing Location-Based Identity Inference in Anonymous Spatial Queries

Country : Singapore
Department : Singapore Management University
Project Title : Preventing Location-Based Identity Inference in Anonymous Spatial Queries
Researcher : KALNIS, Panos , GHINITA, Gabriel , MOURATIDIS, Kyriakos , PAPADIAS, Dimitris
Keyword : Spatial databases , location-based services , Security and Privacy Protection , Mobile applications , Databases and Information Systems , Numerical Analysis and Scientific Computing
Publisher : Institutional Knowledge at Singapore Management University
Year End : 2007
Identifier : https://ink.library.smu.edu.sg/cgi/viewcontent.cgi?article=1204&context=sis_research , https://ink.library.smu.edu.sg/sis_research/205
Source : Research Collection School Of Computing and Information Systems
Abstract / Description :

The increasing trend of embedding positioning capabilities (for example, GPS) in mobile devices facilitates the widespread use of location-based services. For such applications to succeed, privacy and confidentiality are essential. Existing privacy-enhancing techniques rely on encryption to safeguard communication channels, and on pseudonyms to protect user identities. Nevertheless, the query contents may disclose the physical location of the user. In this paper, we present a framework for preventing location-based identity inference of users who issue spatial queries to location-based services. We propose transformations based on the well-established K-anonymity concept to compute exact answers for range and nearest neighbor search, without revealing the query source. Our methods optimize the entire process of anonymizing the requests and processing the transformed spatial queries. Extensive experimental studies suggest that the proposed techniques are applicable to real-life scenarios with numerous mobile users.

References

KALNIS, Panos and others / et al. (2007). Preventing Location-Based Identity Inference in Anonymous Spatial Queries.  Singapore: Singapore Management University.
KALNIS, Panos and others / et al. 2007. "Preventing Location-Based Identity Inference in Anonymous Spatial Queries".  Singapore: Singapore Management University.
KALNIS, Panos and others / et al. "Preventing Location-Based Identity Inference in Anonymous Spatial Queries."  Singapore: Singapore Management University, 2007. Print.
KALNIS, Panos and others / et al. Preventing Location-Based Identity Inference in Anonymous Spatial Queries. Singapore: Singapore Management University; 2007.

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