Li Xiong

Privacy-Preserving Data Sharing and Analytics with Differential Privacy

Dr. Li Xiong, Emory University

Friday, September 23, 2016

2:00pm - 3:00pm

JBHT 239


Li XiongWhile Big Data promises significant values, it also raises increasing privacy concerns.  In this talk, I will give an overview of our work on privacy preserving data sharing and analytics with the state-of-art differential privacy framework.  We discuss two settings: 1) aggregated data sharing for data mining and analytics, and 2) individual location sharing for location based services.  For the first setting, I will present several technical solutions for handing different types of data including sequential and time series data, with various medical and spatiotemporal data mining applications.  For the second setting, I will present our approach towards a rigorous and customizable privacy notion extending the differential privacy framework for location protection, with location based applications such as nearest POI search and geospatial crowdsourcing.


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 four 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).