Privacy-preserving data mashup

  • Authors:
  • Noman Mohammed;Benjamin C. M. Fung;Ke Wang;Patrick C. K. Hung

  • Affiliations:
  • Concordia University, Montreal, QC, Canada;Concordia University, Montreal, QC, Canada;Simon Fraser University, Burnaby, BC, Canada;University of Ontario Institute of Technology, Oshawa, ON, Canada

  • Venue:
  • Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
  • Year:
  • 2009

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Abstract

Mashup is a web technology that combines information from more than one source into a single web application. This technique provides a new platform for different data providers to flexibly integrate their expertise and deliver highly customizable services to their customers. Nonetheless, combining data from different sources could potentially reveal person-specific sensitive information. In this paper, we study and resolve a real-life privacy problem in a data mashup application for the financial industry in Sweden, and propose a privacy-preserving data mashup (PPMashup) algorithm to securely integrate private data from different data providers, whereas the integrated data still retains the essential information for supporting general data exploration or a specific data mining task, such as classification analysis. Experiments on real-life data suggest that our proposed method is effective for simultaneously preserving both privacy and information usefulness, and is scalable for handling large volume of data.