| Title: | Automatic measure of the Quality of Experience and applications |
| Date: |
May 23, 2008 (Friday)
|
| Time: |
2:30 p.m. - 3:30 p.m.
|
| Venue: |
ERB 1106, 11/F, William M.W. Mong Engineering Building,
The Chinese University of Hong Kong, Shatin, N.T. |
| Speaker: |
Professor Gerardo Rubino
Senior Researcher INRIA, France |
The ultimate goal when designing an application running on top of a communication network is the satisfaction of the final user, what is today called a satisfactory level of Quality of Experience (QoE). For a multimedia application, the main component of the QoE is the perceived quality, that is, the quality of the multimedia flow as seen by the human user, clearly a subjective concept.
We have developed the PSQA (Pseudo-Subjective Quality Assessment) approach for measuring the QoE (by measuring quality as perceived by the final users). PSQA is a technology able to provide a numerical (that is, quantitative) and accurate estimation of the quality of a video, audio or multimedia flow, either one-way (for instance, video streaming) or interactive (for instance, IP telephony), as perceived by the end user, automatically and in real time if necessary. In the talk we will present our second generation of PSQA tools, having in mind two main applications, network monitoring and network control. We will describe the main components of the technology, the most important aspects of its current development, and the on-going application projects, mainly to P2P video distribution networks, to mobile networks and to new video codecs. We will also describe other interesting characteristics of the method allowing its use as a complement to standard modeling techniques for performance and dependability analysis of communication systems.
BIOGRAPHY:
G. Rubino is a senior researcher at INRIA, France, at the INRIA Unit at Rennes ("Rennes Bretagne Atlantique"), in the French Brittany area. He is the head of the DIONYSOS group, working in the analysis (mainly stochastic) and design of communication networks. DIONYSOS covers performance and dependability aspects of communication systems, automatic analysis of the perceived quality in multimedia applications ("Quality of Experience") and design of systems in the wireless and optical worlds (mobile networks, sensor networks, optical backbones, for example). G. Rubino has been otherwise full professor at TELECOM Bretagne for a period of five years (1995-2000). He is a member of the IFIP 7.3 Working Group in "Computer Performance Modeling and Analysis". In the Operations Research area, he has been Associate Editor of Naval Research Logistics and he co-launched the ICIL (International Conference in Industrial Logistics) Conference Series (8th issue this year). He has been Scientific Director of the INRIA Unit at Rennes (around 500 people), Responsible of Research at the Networks and Multimedia Department at TELECOM Bretagne, creator of a Master common to this school and the ITAM School in Mexico on networking, invited professor at Montevideo, Uruguay, University of the Republic, and an active animator of research and teaching activities in France and abroad, with more than one hundred publications in his main research areas. He is a member of the Steering Board of EuroFGI, the European "Network of Excellence" in networking and communications, putting together most of the academic research in that domain in Europe. He presently teaches regularly at the University of Rennes, at TELECOM Bretagne, at the Lebanese University in Beirut. This year, 2008, he is the chair of the QEST'08 conference in modeling (5th issue, St Malo, in September) and of the RESIM'08 workshop (8th issue, in rare event simulation, Rennes, September).
Enquiries: Miss Temmy So at tel 2609 8444
For more information, please refer to http://www.cse.cuhk.edu.hk/seminar