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Keynote Lectures

Offloading in Cloud-to-Thing Continuum
Fatos Xhafa, Departament De Llenguatges I Sistemes Informàtics, Universitat Politècnica De Catalunya, Spain

Observing the Users to Estimate the Perceived Quality: Challenges and Technologies
Luigi Atzori, Università degli Studi di Cagliari, Italy

Multimedia Security and Forensic Techniques for Secure Communication, Protection and Detection of Data Content
Anthony TS Ho, University of Surrey, United Kingdom

 

Offloading in Cloud-to-Thing Continuum

Fatos Xhafa
Departament De Llenguatges I Sistemes Informàtics, Universitat Politècnica De Catalunya
Spain
 

Brief Bio
Fatos Xhafa, PhD in Computer Science, is Full Professor at the Technical University of Catalonia (UPC), Barcelona, Spain. He has held various tenured and visiting professorship positions. He was a Visiting Professor at the University of Surrey, UK (2019/2020), Visiting Professor at the Birkbeck College, University of London, UK (2009/2010) and a Research Associate at Drexel University, Philadelphia, USA (2004/2005). Prof. Xhafa has widely published in peer reviewed international journals, conferences/workshops, book chapters, edited books and proceedings in the field (H-index 62). Prof. Xhafa has an extensive editorial service. He is founder and Editor-In-Chief of Internet of Things - Journal - Elsevier (Scopus and WoS Science) and of International Journal of Grid and Utility Computing, (Scopus and WoS Science). Prof. Xhafa is a member of the IEEE Communications Society, IEEE Systems, Man & Cybernetics Society and Founder Member of Emerging Technical Subcommittee of Internet of Things. His research interests include IoT and Cloud-to-thing continuum computing, massive data processing and collective intelligence, optimization, and machine learning, among others. He can be reached at fatos@cs.upc.edu. Please visit http://www.cs.upc.edu/~fatos/ and http://dblp.uni-trier.de/pers/hd/x/Xhafa:Fatos


Abstract
With the fast widespread and adoption of Internet technologies, Cloud computing has become a digital ecosystem, referred to as Cloud-to-thing continuum computing, embracing an array of computing paradigms and infrastructures, from large servers and data centers to tiny sensors and actuators at the Edges of the Internet. Thereby, the Intelligent Edge aims at placing intelligence to the end devices, at the edges of the Internet. The premise is that collective intelligence from the IoT data deluge can be achieved and used at the edges of the Internet by offloading the computation burden from the Cloud systems and leveraging real time intelligence. While (parallel) task offloading is a well-known problem from traditional distributed computing, it is more challenging in Cloud-to-thing continuum. In this talk, we will discuss some offloading computing models in Cloud-to-thing continuum, its challenges and opportunities for the Intelligent Edge. In particular, we will discuss the challenges of processing and analyzing the IoT data streams in real time and how offloading and agile optimization can be useful to harnessing the power of the intelligent edge. We will exemplify the discussion by a real-life scenario from augmented workspace based on affective computing and federated learning.



 

 

Observing the Users to Estimate the Perceived Quality: Challenges and Technologies

Luigi Atzori
Università degli Studi di Cagliari
Italy
 

Brief Bio
Luigi Atzori (PhD, 2000) is professor of Telecommunications at the University of Cagliari, where he leads the activities of the Net4U laboratory (Network for Humans) with around 20 affiliated researchers. Since 2018, he has been the coordinator of the master degree course in Internet Technology Engineering at the University of Cagliari. His research interests fall in the area of Internet of Things (IoT), with particular reference to the design of effective algorithms for the realization of social networks among connected devices to develop the Social IoT paradigm. His works on the IoT and the social IoT have received a great impact with more than 20K citations. His interests also fall in the area of Quality of Experience (QoE), with particular application to the management of services and resources in new generation networks for multimedia communications. Lately, he also applies the study of QoE to IoT services. He serves regularly as referee for several international and national funding programs, in the organizing committee of international conferences, and as associate and guest editor in several international journals (Ad Hoc Networks, IEEE Open Journal of the Communications Society, IEEE Communications Magazine, etc.). He is co-founder of two spinoffs in the areas of IoT solutions for people mobility.


Abstract
The increasing adoption of pervasive digital infrastructure is aimed at improving the human quality of life when conducting most of everyday activities, from having online meetings to using transport mobility services. The achievement of this objective calls for the adoption of a human-centric approach when deploying and managing relevant services. One of the approaches that contributes to this objective is to estimate and manage the quality of experience (QoE) of the users when consuming these services, which requires a deep knowledge of the factors that impact on the formation of the quality perception. In this respect, this talk will focus on the estimation of the users’ perceived QoE when using multimedia and IoT applications by observing their gesture, facial expression and speech. It will describe the technologies to monitor the users and how a proper selection of features from the collected data and the adoption of fusion techniques allow for the estimation of the perceived quality without asking for an explicit feedback from the user while avoiding biasing effects. Future scenarios and challenges will also be described, included the interaction in the immersive digital worlds.



 

 

Multimedia Security and Forensic Techniques for Secure Communication, Protection and Detection of Data Content

Anthony TS Ho
University of Surrey
United Kingdom
 

Brief Bio

Professor Anthony T.S. Ho served as Head of Department of Computer Science, University of Surrey from 2010 to 2015, after joining the University in 2006. He was the recipient of the prestigious Institution of Engineering and Technology (IET) Innovation in Engineering Award under the Security category for his research and commercialization work on digital watermarking in 2006. He obtained his BSc (Hons) in Physical Electronics from Northumbria University in 1979, his MSc in Applied Optics from Imperial College London in 1980 and his PhD in Digital Image Processing from King's College London, University of London in 1983. After graduation, he worked in technical management positions in industry for 11 years in the UK and Canada. From 1994 to 2005, he was a Senior Lecturer and then Associate Professor at Nanyang Technological University (NTU), Singapore. He has published more than 190 peer reviewed articles in international journals and conference proceedings as well as 8 international patents granted related to watermarking and steganography.

Professor Ho is Founding Editor-in-Chief of the International Journal of Information Security and Applications (JISA) and an Area Editor for Signal Processing: Image Communication, both published by Elsevier. In addition, he is an Associate Editor for EURASIP Journal of Image and Video Processing published by Springer. Previously, he served as Associate Editor for IEEE Transactions on Information Forensics and Security (TIFS) from 2016 to 2020, and IEEE Signal Processing Letters (SPL) from 2014 to 2016. He is a Fellow of Institution of Engineering and Technology (FIET), Fellow of Institute of Physics (FInstP), and Fellow of British Computer Society (FBCS), as well as a Chartered Engineer (CEng) and Chartered Physicist (CPhys).


Abstract
The tremendous growth of advanced telecommunication and Internet technologies in the past two decades has led to the proliferation of IoT devices and the necessity for secure digital transmission and storage of huge amount of multimedia content. The talk will give an overview of the convergence of technologies in the information forensics and security domain such as data hiding techniques and their applications to digital images. For example, image steganography for secure communication of secret messages via an open channel, and digital watermarking for protection and authentication of content integrity. Finally, the talk will also introduce forensic techniques for identification and forgery detection of images, as well as detection and identification of anomalies in keystroke data and malicious network traffic flows based on the application of Benford’s Law.



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