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Due to technological advances in sensor technologies, wireless sensor networks are widely used for location monitoring. In such systems monitoring personal locations is done through Internet server. As the server is untrusted, it may cause threats pertaining to privacy of individuals being monitored. This paper is the potential risk to be addressed. This paper presents two algorithms to address this problem. These algorithms achieve two purposes. The first one is that they can improve quality of monitoring locations while the second one is for location anonymization so as to preserving personal location privacy.
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