时间:   2013年6月19日（周三）下午4：00

地点:   延长校区行健楼1008室

讲座:   社交网络中的个人隐私信息：从内容理解到内容保护

演讲者: 罗勃博士, 堪萨斯大学

演讲者简介：

Dr Bo Luo is currently an assistant professor with EECS department at the University of Kansas. He received Ph.D. degree from The Pennsylvania State University in 2008, an M. Phil degree from the Chinese University of Hong Kong in 2003, and a B.E. from University of Sciences and Technology of China in 2001. He is interested in information retrieval, information security and privacy. He has published in top conferences and journals such as ACM CCS, ACM Multimedia, CIKM, INFOCOM, IEEE TKDE, IEEE TIFS etc.

讲座摘要：

In recent years, online social networks like Facebook, Twitter and Google+ have attracted large numbers of users, who willingly share their private information with others. With the advancement of web technology, on the other hand, it becomes easier for malicious applications to pose real privacy threats on such SNS users. Unfortunately, existing privacy protection approaches fall short as they either prevent users from socialization, or mostly focus on social connections instead of contents. We argue that contents such as user attributes and unstructured text messages are critical in privacy protection. In particular, we will discuss: (1) the risks associated with attributes and contents, in particular, attribute-reidentification attacks; (2) identification of social circles and exploiting social circles for privacy protection; (3) predicting social network user behaviors, and identifying high-risk nodes in social circles.

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