Medical privacy protection based on granular computing |
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Authors: | Wang Da-Wei Liau Churn-Jung Hsu Tsan-Sheng |
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Affiliation: | Institute of Information Science, Academia Sinica, Nankang, 11529 Taipei, Taiwan. wdw@iis.sinica.edu.tw |
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Abstract: | Based on granular computing methodology, we propose two criteria to quantitatively measure privacy invasion. The total cost criterion measures the effort needed for a data recipient to find private information. The average benefit criterion measures the benefit a data recipient obtains when he received the released data. These two criteria remedy the inadequacy of the deterministic privacy formulation proposed in Proceedings of Asia Pacific Medical Informatics Conference, 2000; Int J Med Inform 2003;71:17-23. Granular computing methodology provides a unified framework for these quantitative measurements and previous bin size and logical approaches. These two new criteria are implemented in a prototype system Cellsecu 2.0. Preliminary system performance evaluation is conducted and reviewed. |
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