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学术报告应网络与交换技术国家重点实验室邀请，瑞典乌普萨拉大学Edith Ngai副教授将访问北邮，并做学术报告。报告题目：Optimizing information quality in data collection from mobile sensor networks to mobile crowdsensing 报告人：Edith Ngai副教授时间：12月22日上午10:00-12:00 地点：新科研楼510会议室主持人：王文东教授学术讲座内容如下： With advancements of mobile devices, mobile users can collect sensing data from their surrounding wireless sensors using Bluetooth or NFC. Due to the limited battery and contact time between the sensors and the mobile devices, it is crucial to prioritize sensing data to maximize information utility in opportunistic data collection. We present a novel context-aware sensing data dissemination framework that maximizes information utility by considering sensing context, including sensing type, locality, time-to-live, mobility and user interests. We evaluated our solution by both analysis and simulations, and showed that it can provide high information utility for mobile users with low communication overhead. Apart from relaying sensing data, the sensing capability of mobile devices enables them to act as mobile sensors to support many crowdsensing applications. Incentive allocation is an important research topic in mobile crowdsensing. Unfortunately, existing incentive approaches usually include inefficient negotiation procedures. We propose a novel incentive allocation mechanism to address the problem. Our solution is able to encourage participation and allocate incentives dynamically to achieve accurate sensing results. Finally, we would like to present a mobile social crowd sensing application for safe driving. In this work, we investigate Mood-Fatigue Analyzer (MFA), which employs multidimensional methods to obtain drivers' real-time mood and fatigue information by sensors inside and outside the vehicles. Besides promoting safe driving with integrated sensors, the MFA also enables communication between drivers in a social context via the cloud. Edith Ngai副教授简历如下：瑞典乌普萨拉大学信息技术学院副教授。Edith Ngai 2007年毕业于香港中文大学计算机科学与工程系，获博士学位。2007-2008年间，在英国伦敦帝国理工学院从事博士后研究。Edith Ngai副教授的研究兴趣包括无线传感网络、移动网络、物联网及云计算、信息中心网络、网络安全及隐私、e-health以及智慧城市应用等。Edith此前曾在加拿大Simon Fraser大学、清华大学、加州大学洛杉矶分校等世界著名大学从事过研究工作。同时，Edith Ngai在2009年被瑞典创新局（VINNOVA，Sweden）授予VINNMER Fellow，她曾担任IEEE ICDCS,IEEE ICC, IEEE Globecom, IEEE/ACM IWQoS, IEEE WCNC, IEEE DCOSS, IEEE LCN等著名国际会议的TPC 成员，并且担任了2012年瑞典国家计算机网络研讨会（SNCNW'12）,QShine’2014，SmartCity’2015的联合主席，以及ACM womENcourage’2015 和ISSNIP’2015等会议的程序委员会主席。欢迎全校广大师生踊跃参加。网络与交换技术国家重点实验室 2014年12月16日 http://portal.bupt.edu.cn//html/main/col51/2014-12/16/20141216140942644968133_1.html

学术报告：Optimizing information quality in data collection