- 09-02-2017: Technical Seminar "Data-Driven Computing for Smart Vehicles", by Dr Yajun Ha, ShanghaiTech University, China.
- 30-03-2017: Technical Seminar "Open 5G Platform", by Dr Yang Yang, Chinese Academy of Sciences & ShanghaiTech University, China.
- 07-04-2017: Technical Seminar "Medical Informatics: Data Analytics in Healthcare", by Dr Liu Nan, Singapore General Hospital & Duke-NUS Medical School, Singapore.
- 16-05-2017: Technical Seminar "Chanllenges and Solutions for Automotive Security & Privacy", by Dr H. Gregor Molter, Head of Security & Privacy Research Embedded Systems, Security & Privacy Competence Center, SCC, Cross Divisional Systems & Technology - Corporate S&T, Continental Teves AG & Co. oHG, Germany.
- 23-05-2017: Distinguished Lecture "An Anatomy of Social Media Popularity", by Dr Lexing Xie, Austrialian National University, Australia.
- 27-06-2017: Technical Talk "Circuit Level Optimization of Fixed-coefficient Digital FIR Filters", by Dr Yajun Yu, South University of Science and Technology, China.
- 27-06-2017: Technical Talk "New Developments: Promoting the IEEE Circuits and Systems Society Activities", by Prof Yong Lian (IEEE CASS President-Elect).
- 25-07-2017: Technical Talk "Graph Signal Processing: Techniques for Processing of Numerical Data Defined over Irregular Domain", by Dr David Tay, La Trobe University, Australia.
- 10-08-2017: Technical Talk "Rate-Distortion Optimization for Sparse Coding in Image Compression", by Prof Nam Ling, Santa Clara University, U.S.A.
- 18-08-2017: Distinguished Lecture "Chanllenges and Opportunities of Circuits and Systems on Internet of Things", by Dr. Yen-Kuang Chen, Intel Corporation, U.S.A.
- 26-10-2017: Technical Talk "Design Automation of Cyberphysical Systems: System-Level Approaches for Energy-Aware Electric Vehicle Design and Management", by Prof Naehyuck Chang, Korea Advanced Institute of Science and Technology, Korea.
An Anatomy of Social Media PopularityDr. Lexing Xie, Associate Professor, Australian National University, AustraliaOrganized by IEEE Circuits and Systems Singapore Chapter & Centre for Infocomm Technology (INFINITUS), School of EEE, NTU "Sponsored by the IEEE Circuits and Systems Society under its Distinguished Lecturer Program" |
Date : 23 May 2017 (Tuesday) Time : 2.30 PM - 3.30 PM Venue : Executive Seminar Room S2.2-B2-53 |
AbstractHow did a video go viral? Or will it go viral, and when? These are some of the most intriguing yet difficult questions in social media analysis. This talk will first provide a broad overview of recent research in understanding the predicting popularity, driven by larger amounts of online data and more understanding of human perception and psychology. I will then cover a few recent results from my group on understanding and predicting popularity, especially for YouTube videos. I will start by describing a unique longitudinal measurement study on video popularity history, and introduce popularity phases, a novel way to describe the evolution of popularity over time. I will then discuss a physics-inspired stochastic model that connects exogenous stimuli and endogenous responses to explain and forecast popularity. With such novel representation and new models, we can correlate video content type to popularity patterns, make better predictions, describe the endo-exo factors driving popularity, and forecast the effects of promotion campaigns. Speaker BiographyLexing Xie is Associate Professor in the Research School of Computer Science at the Australian National University, she leads the ANU Computational Media lab (https://cm.cecs.anu.edu.au), and is also affiliated with the machine learning research group at NICTA. She was research staff member at IBM T.J. Watson Research Center in New York from 2005 to 2010, and adjunct assistant professor at Columbia University 2007-2009. She received B.S. from Tsinghua University, Beijing, China, and M.S. and Ph.D. degrees from Columbia University, all in Electrical Engineering. Her research interests are in machine learning, multimedia, social media. Of particular recent interest are stochastic time series models, neural network for sequences, and active learning, applied to diverse problems such as multimedia knowledge graphs, modeling popularity in social media, social recommendation. Lexing's research has received six best student paper and best paper awards between 2002 and 2015, and a Grand Challenge Multimodal Prize at ACM Multimedia 2012. She currently serves an associate editor of ACM Trans. MM, ACM TiiS and PeerJ Computer Science. Her service roles include the program and organizing committees of major multimedia, machine learning, web and social media conferences. |