| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Research Abstract |
The rise of location-sharing services on a number of mobile platforms have recently opened up the possibilities of sharing location information with other users. However, location sharing raises significant privacy concerns because location data (e.g., visiting a hospital) can be used to infer a user's personal activities. Since it is often possible to infer a user's suppressed location data from disclosed public locations considering strong spatial and temporal correlation among them, we develop a new access-control scheme against such inference attacks and conduct experiments with a real location dataset to show the effectiveness of our proposed method.
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