HELEN KARATZA
Helen Karatza
Aristotle University of Thessaloniki, Greece

Abstract:

Due to the adoption of cloud computing in industry and academia, many applications have been moved from traditional computing environments to the cloud. Therefore, issues related to cloud resource allocation, application scheduling, timeliness, cost and energy conservation need to be addressed.
A particularly important issue in cloud computing is to run complex real-time applications which may feature high degree of parallelism. Effective scheduling algorithms should be utilized providing QoS level guarantees to the end users. Due to the expansion of Internet of Things (IoT) concept, fog computing has emerged as a computing paradigm used to solve some issues in cloud computing related to network congestion and transmission latency. The computational capacity of the fog resources is usually limited. However, most of the IoT applications are real-time as decisions must be made fast. Therefore, efficient management of real-time applications is necessary to fully exploit the capabilities of cloud and fog resources.
In this keynote we will describe techniques and solutions to address challenges in scheduling real-time applications in cloud and fog computing environments and we will conclude with future research trends and directions in the cloud and fog computing areas.

Bio:

Helen Karatza is a Professor Emeritus in the Department of Informatics at the Aristotle University of Thessaloniki, Greece, where she teaches courses in the postgraduate and undergraduate level and carries out research. Dr. Karatza's research interests include Fog and Cloud Computing, Energy Efficiency in Large Scale Distributed Systems, Resource Allocation and Scheduling and Real-time Distributed Systems.
Dr. Karatza has authored or co-authored over 230 technical papers and book chapters including five papers that earned best paper awards at international conferences. She is senior member of IEEE, ACM and SCS, and she served as an elected member of the Board of Directors at Large of the Society for Modeling and Simulation International. She served as Chair and Keynote Speaker in International Conferences.
Dr. Karatza is the Editor-in-Chief of the Elsevier Journal “Simulation Modeling Practice and Theory”. She was Editor-in-Chief of “Simulation Transactions of The Society for Modeling and Simulation International”, Associate Editor of “ACM Transactions on Modeling and Computer Simulation” and Senior Associate Editor of the “Journal of Systems and Software” of Elsevier. She served as Guest Editor of Special Issues in International Journals. More info about her activities/publications can be found in http://agent.csd.auth.gr/~karatza/