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Displaying 1-15 out of 15 total
Parametric Design and Performance Analysis of a Decoupled Service-Oriented Prediction Framework Based on Embedded Numerical Software
IEEE Transactions on Services Computing
By George Kousiouris,Andreas Menychtas,Dimosthenis Kyriazis,Kleopatra Konstanteli,Spyridon V. Gogouvitis,Gregory Katsaros,Theodora A. Varvarigou
Issue Date:October 2013
In modern utility computing infrastructures, like grids and clouds, one of the significant actions of a service provider is to predict the resources needed by the services included in its platform in an automated fashion for service provisioning optimizati...
Sustainable smart city IoT applications: Heat and electricity management & Eco-conscious cruise control for public transportation
2013 IEEE 14th International Symposium on
By Dimosthenis Kyriazis,Theodora Varvarigou,Andrea Rossi,Daniel White,Joshua Cooper
Issue Date:June 2013
In a world of multi-stakeholder information and assets provision on top of millions of real-time interacting and communicating things, systems based on Internet of Things (IoT) technologies aim at exploiting these assets in a resilient and sustainable way ...
Migrating Legacy Software to the Cloud with ARTIST
2013 17th European Conference on Software Maintenance and Reengineering (CSMR)
By Alexander Bergmayr,Hugo Bruneliere,Javier Luis Canovas Izquierdo,Jesus Gorronogoitia,George Kousiouris,Dimosthenis Kyriazis,Philip Langer,Andreas Menychtas,Leire Orue-Echevarria,Clara Pezuela,Manuel Wimmer
Issue Date:March 2013
As cloud computing allows improving the quality of software and aims at reducing costs of operating software, more and more software is delivered as a service. However, moving from a software as a product strategy to delivering software as a service hosted...
A Cloud Environment for Data-intensive Storage Services
Cloud Computing Technology and Science, IEEE International Conference on
By Elliot K. Kolodner,Sivan Tal,Dimosthenis Kyriazis,Dalit Naor,Miriam Allalouf,Lucia Bonelli,Per Brand,Albert Eckert,Erik Elmroth,Spyridon V. Gogouvitis,Danny Harnik,Francisco Hernandez,Michael C. Jaeger,Ewnetu Bayuh Lakew,Jose Manuel Lopez,Mirko Lorenz,Albe
Issue Date:December 2011
The emergence of cloud environments has made feasible the delivery of Internet-scale services by addressing a number of challenges such as live migration, fault tolerance and quality of service. However, current approaches do not tackle key issues related ...
A Unified Management Model for Data Intensive Storage Clouds
Network Cloud Computing and Applications, International Symposium on
By Athanasios Voulodimos,Spyridon V. Gogouvitis,Nikoletta Mavrogeorgi,Roman Talyansky,Dimosthenis Kyriazis,Stefanos Koutsoutos,Vasileios Alexandrou,Elliot Kolodner,Per Brand,Theodora Varvarigou
Issue Date:November 2011
Cloud storage has recently appeared as a promising solution to handle the immense volume of data produced in nowadays' rich and ubiquitous digital environment. Existing approaches, however, do not fully address certain significant issues, such as Service L...
Virtual and Augmented Reality: Improved User Experience through a Service Oriented Infrastructure
Games and Virtual Worlds for Serious Applications, Conference in
By Michael Braitmaier, Dimosthenis Kyriazis
Issue Date:May 2011
Service Oriented Infrastructures allow for on-demand provision of Information and Communication Technologies assets. What virtual environments require from such infrastructures refers to the offered Quality of Service (QoS) levels, which have direct impact...
Interactive Social TV on Service Oriented Environments: Challenges and Enablers
Games and Virtual Worlds for Serious Applications, Conference in
By Dimosthenis Kyriazis, George Kousiouris, Andreas Menychtas, Anastasios Doulamis, Theodora Varvarigou
Issue Date:May 2011
Future Internet Applications require the on-demand provision of ICT assets with regard to data, services and process technologies. What is missing from today's service platforms to realize this vision refers to the way services are perceived to work and as...
An Architectural Approach for Event-Based Execution Management in Service Oriented Infrastructures
Symbolic and Numeric Algorithms for Scientific Computing, International Symposium on
By Spyridon V. Gogouvitis, Kleopatra Konstanteli, Dimosthenis Kyriazis, Theodora Varvarigou
Issue Date:September 2010
In order to enable interactive applications to benefit from the offerings of the Cloud paradigm, factors such as QoS and event handling need to be taken into consideration in the development of new platforms. In this paper we propose a hierarchical Executi...
A Service-Oriented Framework for GNU Octave-Based Performance Prediction
Services Computing, IEEE International Conference on
By George Kousiouris, Dimosthenis Kyriazis, Kleopatra Konstanteli, Spyridon Gogouvitis, Gregory Katsaros, Theodora Varvarigou
Issue Date:July 2010
Cloud/Grid environments are characterized by a diverse set of technologies used for communication, execution and management. Service Providers, in this context, need to be equipped with an automated process in order to optimize service provisioning through...
Platform-as-a-Service Architecture for Real-Time Quality of Service Management in Clouds
Internet and Web Applications and Services, International Conference on
By Michael Boniface, Bassem Nasser, Juri Papay, Stephen C. Phillips, Arturo Servin, Xiaoyu Yang, Zlatko Zlatev, Spyridon V. Gogouvitis, Gregory Katsaros, Kleopatra Konstanteli, George Kousiouris, Andreas Menychtas, Dimosthenis Kyriazis
Issue Date:May 2010
Cloud computing offers the potential to dramatically reduce the cost of software services through the commoditization of information technology assets and on-demand usage patterns. However, the complexity of determining resource provision policies for appl...
Real-Time Guarantees in Flexible Advance Reservations
Computer Software and Applications Conference, Annual International
By Kleopatra Konstanteli, Dimosthenis Kyriazis, Theodora Varvarigou, Tommaso Cucinotta, Gaetano Anastasi
Issue Date:July 2009
This paper deals with the problem of scheduling workflow applications with Quality of Service (QoS) constraints, comprising real-time and interactivity constraints, over a service-oriented Grid network. A novel approach is proposed, in which high-level Adv...
Data Aggregation and Analysis: A Grid-Based Approach for Medicine and Biology
Parallel and Distributed Processing with Applications, International Symposium on
By Dimosthenis Kyriazis, Konstantinos Tserpes, George Kousiouris, Andreas Menychtas, Gregory Katsaros, Theodora Varvarigou
Issue Date:December 2008
A constantly increasing number of applications from various scientific sectors are finding their way towards adopting Grid technologies in order to take advantage of their capabilities: the advent of Grid environments made feasible the solution of computat...
Evaluating Quality Provisioning Levels in Service Oriented Business Environments
Enterprise Distributed Object Computing Conference, IEEE International
By Konstantinos Tserpes, Dimosthenis Kyriazis, Andreas Menychtas, Antonios Litke, Costis Christogiannis, Theodora Varvarigou
Issue Date:September 2008
This paper advocates the need for a mechanism that will allow the evaluation of the provided quality of service (QoS) by a service provider to a service customer in B2B service provisioning. Furthermore, this study goes on with presenting the feasibility o...
QoS-oriented Service Management in large scale federated clouds
2013 IEEE Symposium on Computers and Communications (ISCC)
By Dimosthenis Kyriazis,Konstantinos Kostantos,Andrew Kapsalis,Spyridon Gogouvitis,Theodora Varvarigou
Issue Date:July 2013
Future Internet applications raise the need for infrastructures that can facilitate real-time and interactivity without major modifications in the application domain. Such infrastructures should be able to efficiently adapt resource provisioning to the dyn...
Realtime-enabled workflow management in service oriented infrastructures
Found in: Proceeding of the 1st ACM workshop on Analysis and retrieval of events/actions and workflows in video streams (AREA '08)
By Andreas Menychtas, Dimosthenis Kyriazis, George Kousiouris, Kleopatra Konstanteli, Spyridon V. Gogouvitis, Theodora Varvarigou, Theodoros Polychniatis
Issue Date:October 2008
Many applications, and especially the ones implementing multi-user collaborative environments, fall within the context of soft real time systems in which only small deviations from timing constraints are allowed. Furthermore, there is a growing trend that ...
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