Keynote Speakers
Keynote Speaker I
Prof. Euripides G. M. Petrakis,
Technical University of Crete (TUC), Chania, Crete, Greece
Title: Microservices Scheduling with Kubernetes in Cloud and Fog Environments
Abstract
The growing popularity of microservices architectures generated the need for tools that orchestrate their deployment in containerized infrastructures, such as Kubernetes (K8s). Services running in separate containers are packed in pods and placed in Virtual Machines (VMs) or nodes. Kubernetes schedules computing resources per application micro-services at runtime by applying a best-fit (heuristic) policy based on resource requests and user preferences. For applications with multiple communicating microservices, such as Service Oriented Architecture (SOA), deciding which microservices should be placed in the same node has a certain impact on both the running time and the operation cost of an application (in the cloud, end users are charged by the amount of resources consumed). The default Kubernetes scheduler is far from optimal in this case in terms of latency and resources consumed and easily results in increased costs for the end users. The problem can take many different forms depending on whether the K8s cluster is deployed in the same or different zones or regions of a cloud provider, and whether a re-rescheduling decision needs to be taken. An interesting aspect of the same problem is K8s orchestration on cloud–fog–edge environments. Configuring a Kubernetes cluster for multiple applications is not a simple task especially if optimizing any or all the above factors (latency, resources, usage cost) is required. K8s scheduling can be static (the placement decisions do not change over the lifetime of an application time) or can better be adaptive (the services can move to different nodes if deemed appropriate based on a set of known criteria). In this talk, various aspects of the problem and possible solutions are discussed respectively. Also, we present a unifying scheduling approach and model that encompasses different scheduling cases including the cloud-fog case.
Biography
Prof. Euripides G. M. Petrakis holds the Professor of Computer Science position at the School of Electrical and Computer Engineering, the Technical University of Crete, Greece. He is the director of Intelligent Systems Laboratory. His research activities cover various areas, starting with Computer Vision and Information Systems (in his early career), Semantic Web, and later, Software Engineering, IoT, and Cloud Computing. He has authored more than 170 papers in tier-1 international journals and conferences and has more than 6500 references to his work (h-index 34). He is associate editor of Elsevier's Internet of Things Journal. In 2022 he was awarded the “TUC Excellence Award”.
Keynote Speaker II
Prof. Hiroaki Kikuchi
Meiji University, Japan
Title: Privacy Enhancing Technologies (PETs) Challenges for Healthcare Bigdata
Abstract
With the advanced technologies for ubiquitous computing, the large sensitive big data are valuable to explore the associations of data for epidemiology. New data privacy regulations allow sharing anonymization of data for relatively low cost than that of conventional cohort studies. In this talk, we explore Privacy Enhancing Technologies (PETs) toward secure and reliable healthcare bigdata sharing. Differential privacy technologies allow to provide theoretical guarantee against the record disclosure risks. We will discuss challenges for different privacy technologies from variety of threats.
Biography
Hiroaki Kikuchi is a Full Professor at Department of Frontier Media Science, School of Interdisciplinary Mathematical Sciences, Meiji University, Japan. He is serving now as Associate Dean of School of Interdisciplinary Mathematical Sciences. He is Board Chairman of Japan Computer Emergency Response Team Coordination Center (JPCERT/CC). Prof. Kikuchi received B. E., M. E. and Ph.D. degrees from Meiji University. From 1994 to 2013, he was working at Tokai University, Japan. His main research interests are fuzzy logic, cryptographical protocol, network security and data privacy. He is a member of the Institute of Electronics, Information and Communication Engineers of Japan (IEICE), Information Processing Society of Japan (IPSJ), Japan Society for Fuzzy Theory and Systems (SOFT), IEEE and ACM. Prof. Kikuchi is a Fellow of IPSJ.