应网络与交换技术国家重点实验室程祥老师的邀请，美国埃默里大学Li Xiong教授将于6月23日来北京邮电大学作学术报告。欢迎校内广大师生踊跃参加。
讲座题目：Privacy-Preserving Location Sharing: Possibilities and Challenges（隐私保护的位置共享：潜力与挑战）
主讲人：Li Xiong（熊莉）教授
主持人：程祥
时间：2016年6月23日（星期四）上午9:00—10:30
地点：新科研楼610会议室
报告摘要：
Location or trajectory data of individual users are being increasingly collected, thanks to the ubiquity of GPS-enabled personal devices. Individual location data provide personal benefits of location based services such as finding nearby Point of Interests (POIs). Aggregated location data provide societal good by enabling data mining applications such as disease spread control and traffic monitoring. On the other hand, location disclosure poses serious privacy concerns including tracking and profiling threats. In this talk, I will give an overview of our work on privacy-preserving location sharing that enables beneficial services while protecting personal privacy. We discuss two settings: 1) aggregated spatiotemporal data sharing for data mining and analytics, and 2) individual location sharing for location based services. Focusing on the second setting, I will present our approach towards a rigorous and customizable privacy notion extending the differential privacy framework, and location perturbation mechanisms designed to achieve privacy guarantees while maximizing utility. Finally, I will describe empirical studies using real-world data demonstrating the feasibility as well as the challenges of using perturbed locations in location based applications, such as nearest POI search and geospatial crowdsourcing.
主讲人简介：
Li Xiong is a Winship Distinguished Research Professor of Computer Science (and Biomedical Informatics) at Emory University. She holds a PhD from Georgia Institute of Technology, an MS from Johns Hopkins University, and a BS from University of Science and Technology of China, all in Computer Science. She and her research group, Assured Information Management and Sharing (AIMS), conduct research that addresses both fundamental and applied questions at the interface of data privacy and security, spatiotemporal data management, and health informatics. She has published over 100 papers in premier journals and conferences including TKDE, VLDB, ICDE, CCS, and WWW, with three best paper awards. She currently serves as associate editor for IEEE Transactions on Knowledge and Data Engineering (TKDE) and regularly serves on program committees for data management and data security conferences. She is a recipient of a Woodrow Wilson Fellowship and industry awards from Google, IBM, and Cisco. Her research is supported by NSF, NIH, AFOSR (Air Force Office of Scientific Research), and PCORI (Patient-Centered Outcomes Research Institute).
该讲座为前沿讲座，欢迎全校师生踊跃参加。
网络与交换技术国家重点实验室
2016年6月21日
