Choon-Oh Lee

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— Location logging is a technique that continuously records user's location using various location sensing and positioning technologies. Location logs and information derived from those logs can be useful contexts for various applications. However, previous research related to recording and handling location logs failed to seriously consider heavy battery(More)
Recently, numerous location-based services have been developed for smartphones; among location-based services, proactive location-based services can serve smartphone users based on periodically collected location logs in background. However, these proactive services have not been widely used, mainly because most of them continuously consume too much battery(More)
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