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This paper proposes a robotic walking-aid system which aims to provide mobility assistance and remote monitoring for the elderly or the disable. The robotic system is able to provide physical support and guidance while avoiding static and dynamic obstacles. To effectively solve different situations against obstacles, a training stage of learning human user-adaptive characteristics is adopted. Through...
Due to the rise of cloud computing, many cloud services have been developed. Google proposed a programming model called MapReduce for processing large amounts of data. After YAHOO! proposed Hadoop, many companies and enterprises have started using this programming model to establish their own cluster for handling large amounts of data.
MapReduce is an important programming model for large-scale parallel applications. It divides a job into several parallel tasks and completes the job by sequential phases, i.e. map phase and reduce phase. The job completion time will be delayed when a task, called straggler, consumes more time than others. The main reason that a straggler occurs is the imbalance resource distribution among computing...
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