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In this study, we proposed a user relationship strength hierarchy vote (URSHV) model to measure the relationship strength, which can reflect the degree of intimacy between two different persons. This model is a hierarchical model measuring the relationship by voting on users' daily moving trajectory similarity, physical position similarity,, the corresponding semantic location similarity, capable...
In recent years, EEG brainwave-reading device is used more and more in various academic fields and real life. Analyzing brainwave from drivers, we divide the brainwave data into light fatigue, medium fatigue and severe fatigue. Once the driver's Low-α 0.5, or attention and meditation less than 40 degrees, then the system is determined that the driver is lethargic or inattention. The system...
In recent years, mobile sensing data are widely used for analyzing human's activities, usage patterns, emotions, health conditions and social relationships. In order to understand and analyze human's behaviors, several frameworks have been proposed to collect mobile sensing data. In this paper we extend previous works and design StarLog, which is a distributed and energy-configurable framework for...
This article describes the use of IEEE 1588 and boundary clocks for clock distribution (phase/time transfer) in telecom networks. The technology is primarily used to serve the radio interface synchronization requirements of mobile systems such as WiMAX and LTE, and to reduce the deployment and dependence of GPS systems in base stations. We discuss the most important functions that are necessary for...
A novel navigation strategy for mobile robot in large unknown environment is put forward here. Globally, the robot's path is planned with genetic algorithm, which is better than A* algorithm and neural networks. Locally, the robot avoids obstacle and moves with some basic behaviors and path memory. With GPS and INS information fusion, the robot can go from one sub target to another sub target with...
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