Computer Science - Promotion seminar

Mae'r digwyddiad hwn wedi dod i ben

Yukun Lai

Title: Understanding and Generating Visual Media using Machine Learning

Abstract: In this talk, I will give an overview of our recent research which aims to develop automatic methods to understand and synthesise visual media including images and 3D shapes. In particular, we focus on tasks which are traditionally challenging, including image emotion analysis, image style transfer, as well as 3D shape deformation analysis and transfer.

Bio: Dr Yukun Lai is a Reader at Visual Computing group, School of Computer Science and Informatics. He obtained his PhD degree from Tsinghua University, China in 2008 and joined Cardiff University as a lecturer in 2009. He has been working on broad areas of Visual Computing, including Computer Graphics, Geometric Processing, Image Processing and Computer Vision. He has published over 100 papers in world-class journals and conferences, including ACM Trans. Graphics, IEEE Trans. Visualization and Computer Graphics, IEEE Trans. Image Processing etc. He is on the editorial board of The Visual Computer, conference co-chair of SGP 2014 and CVM 2016, and on the programme committee of many major international conferences.

George Theodorakopoulos

Title: IoT security,blockchain,and location privacy

Abstract: I will give an overview of my research on IoT security in home and industrial settings,  blockchain,  and location privacy. On IoT security, the focus will be on recent experimental attacks that confirm the adage "In "IoT", the "s" stands for security," followed by research efforts to protect home and industrial IoT devices and networks, partly in collaboration with Airbus. Then,I will introduce a recently started EPSRC project on blockchain, cloud computing, and privacy. Finally, through a sequence of results that build on one another, I will describe a coherent way to quantify and reason about location privacy. In the second part of the talk, I will present a recent result on protecting a location histogram by camouflaging it as any desirable target histogram. This privacy objective will be framed as an optimization problem in which privacy is maximized subject to a quality constraint. The optimal solution is found by reduction to a constrained shortest path problem.

Bio: George Theodorakopoulos received the Diploma degree from the National Technical University of Athens, Greece, in 2002, and the M.S. and Ph.D. degrees from the University of Maryland, College Park, MD, USA, in 2004 and 2007, all in electrical and computer engineering.

He is a Senior Lecturer at the School of Computer Science and Informatics, Cardiff University, which he joined in 2012. From 2007 to 2011, he was a Senior Researcher at the Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland. He is a coauthor (with John Baras) of the book Path Problems in Networks (Morgan and Claypool,2010).

He received the Best Paper award at the ACM Workshop on Wireless Security, October 2004, for "Trust evaluation in ad-hoc networks" and the 2007 IEEE ComSoc Leonard Abraham prize for "On trust models and trust evaluation metrics for ad hoc networks." He coauthored "Quantifying Location Privacy," which was runner-up for the 2012 PET Award (Award for Outstanding Research in Privacy Enhancing Technologies).