Simulation Study of Multitasking of Open Computer System Networks. - Helen D. Karatza (Comput. Syst. Sci. Eng., 1986)

Simulation Study of Multitasking of Closed Computer System Networks. - Helen D. Karatza (Comput. Syst. Sci. Eng., 1987)

Book Reviews : Simulation Modeling and Analysis (2nd Edition) A.M.Law and W.D.Kelton McGraw-Hill. - Helen D. Karatza (Simul., 1993)

Simulation study of a system with two processors linked in tandem. - Helen D. Karatza (J. Syst. Softw., 1994)

Simulation Study of Multitasking and Resequencing in a Homogeneous Distributed System. - Helen D. Karatza (EUROSIM, 1995)

Multitasking and resequencing in a two-stage multiprocessing system. - Helen D. Karatza (WSC, 1996)

Performance Issues of Task Routing and Task Scheduling with Resequencing in Homogeneous Distributed Systems. - Anthony Karageorgos; Helen D. Karatza (Annual Simulation Symposium, 1997)

Simulation Study of Task Scheduling and Resequencing in a Multiprocessing System. - Helen D. Karatza (Simul., 1997)

Assignment of Programs in a Distributed System with Resequencing. - Helen D. Karatza (Annual Simulation Symposium, 1998)

Task routing and resequencing in a multiprocessor system. - Helen D. Karatza (J. Syst. Softw., 1998)

A Simulation - Based Performance Analysis of Gang Scheduling in a Distributed System. - Helen D. Karatza (Annual Simulation Symposium, 1999)

A Simulation Model of Task Cluster Scheduling in Distributed Systems. - Helen D. Karatza (FTDCS, 1999)

Scheduling Strategies for Multitasking in a Distributed System. - Helen D. Karatza (Annual Simulation Symposium, 2000)

A simulation model of backfilling and I/O scheduling in a partitionable parallel system. - Helen D. Karatza (WSC, 2000)

Cache affinity and resequencing in a shared-memory multiprocessing system. - Helen D. Karatza (J. Syst. Softw., 2000)

Book Review : Simulation with Visual SLAM and Awesim by A. Alan B. Pritsker and Jean J. O'Reilly. - Helen D. Karatza (Simul., 2000)

Epoch Load Sharing in a Network of Workstations. - Helen D. Karatza; Ralph C. Hilzer Jr. (Annual Simulation Symposium, 2001)

Job scheduling in heterogeneous distributed systems. - Helen D. Karatza (J. Syst. Softw., 2001)

Gang Scheduling Performance under Different Distributions of Gang Size. - Helen D. Karatza (Parallel Distributed Comput. Pract., 2001)

Modeling and Simulation Applications in Scheduling Multiprocessor Systems. - Helen D. Karatza (Simul., 2001)

Gang Scheduling Performance on a Cluster of Non-Dedicated Workstations. - Helen D. Karatza (Annual Simulation Symposium, 2002)

Scheduling a Job Mix in a Partitionable Parallel System. - Helen D. Karatza; Ralph C. Hilzer Jr. (Annual Simulation Symposium, 2002)

Scheduling Issues in a Partitionable Parallel System. - Helen D. Karatza (ESM, 2002)

Parallel and distributed systems: load sharing in heterogeneous distributed systems. - Helen D. Karatza; Ralph C. Hilzer Jr. (WSC, 2002)

Book Review: An Owner's Manual for High Performance Computing (A review of Techniques for Optimizing Applications: High Performance Computing by Rajat P. Garg and Ilya Sharapov). - Helen D. Karatza (IEEE Distributed Syst. Online, 2002)

Task scheduling performance in distributed systems with time varying workload. - Helen D. Karatza (Neural Parallel Sci. Comput., 2002)

Mobile agents as a middleware for data dissemination. - Konstantinos G. Zerfiridis; Helen D. Karatza (Neural Parallel Sci. Comput., 2002)

A Simulation Study of Epoch Load Sharing in Distributed Systems. - Helen D. Karatza; Ralph C. Hilzer Jr. (Simul., 2002)

Performance Analysis of Parallel Job Scheduling in Distributed Systems. - Helen D. Karatza; Ralph C. Hilzer Jr. (Annual Simulation Symposium, 2003)

Dissemination Scenarios in Peer-to-Peer Networks. - Konstantinos G. Zerfiridis; Helen D. Karatza (Annual Simulation Symposium, 2003)

Large Scale Dissemination Using a Peer-to-Peer Network. - Konstantinos G. Zerfiridis; Helen D. Karatza (CCGRID, 2003)

Fault Tolerant Peer-to-Peer Dissemination Network. - Konstantinos G. Zerfiridis; Helen D. Karatza (Euro-Par, 2003)

Gang Scheduling in a Distributed System under Processor Failures and Time-Varying Gang Size. - Helen D. Karatza (FTDCS, 2003)

Scheduling in Distributed Systems. - Helen D. Karatza (MASCOTS Tutorials, 2003)

Parallel Job Scheduling in Homogeneous Distributed Systems. - Helen D. Karatza; Ralph C. Hilzer Jr. (Simul., 2003)

Adaptive Energy Conservation Model using Dynamic Caching for Wireless Devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (Annual Simulation Symposium, 2004)

Optimized Dissemination of Highly Anticipated Content over an Itinerary Based P2P Network. - Konstantinos G. Zerfiridis; Helen D. Karatza (Annual Simulation Symposium, 2004)

An on Demand Path Marking and Capacity Reservation Method using Split Agent. - Constandinos X. Mavromoustakis; Helen D. Karatza (CLADE, 2004)

Agent-based throughput response in presence of node and/or link failure (on demand) for circuit switched telecommunication networks. - Constandinos X. Mavromoustakis; Helen D. Karatza (Comput. Commun., 2004)

Intelligent Software Agents' Influence on Media-Based Systems. - Helen D. Karatza (IEEE Distributed Syst. Online, 2004)

A Valuable Resource of Programmers Using .NET Technology. - Helen D. Karatza (IEEE Distributed Syst. Online, 2004)

An Excellent Resource for Parallel Computing. - Helen D. Karatza (IEEE Distributed Syst. Online, 2004)

Split agent-based routing in interconnected networks. - Constandinos X. Mavromoustakis; Helen D. Karatza (Int. J. Commun. Syst., 2004)

Computer systems. - Helen D. Karatza (J. Syst. Softw., 2004)

Performance modeling and analysis of computer systems and networks. - Helen D. Karatza (J. Syst. Softw., 2004)

Brute force web search for wireless devices using mobile agents. - Konstantinos G. Zerfiridis; Helen D. Karatza (J. Syst. Softw., 2004)

File distribution using a peer-to-peer network–a simulation study. - Konstantinos G. Zerfiridis; Helen D. Karatza (J. Syst. Softw., 2004)

Modeling and simulation of distributed systems and networks. - Helen D. Karatza (Simul. Model. Pract. Theory, 2004)

Simulation study of multitasking in distributed server systems with variable workload. - Helen D. Karatza (Simul. Model. Pract. Theory, 2004)

Preface to Special Issue on Modeling and Simulation Applications in Cluster and Grid Computing. - Helen D. Karatza (Simul., 2004)

Itinerary-Based Segmented Dissemination on a Peer-to-Peer Network. - Konstantinos G. Zerfiridis; Helen D. Karatza (Simul., 2004)

Handling Delay Sensitive Contents Using Adaptive Traffic-Based Control Method for Minimizing Energy Consumption in Wireless Devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (Annual Simulation Symposium, 2005)

Bandwidth Clustering for Reliable and Prioritized Network Routing Using Split Agent-Based Method. - Constandinos X. Mavromoustakis; Helen D. Karatza (ICDCS Workshops, 2005)

Reliable file sharing scheme for mobile peer-to-peer users using epidemic selective caching. - Constandinos X. Mavromoustakis; Helen D. Karatza (ICPS, 2005)

Segmented File Sharing with Recursive Epidemic Placement Policy for Reliability in Mobile Peer-to-Peer Devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (MASCOTS, 2005)

Epidemic Collaborative Geocast for Reliable Segmented File Sharing in Mobile Peer-to-Peer Devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (Panhellenic Conference on Informatics, 2005)

Adaptive traffic-based control method for energy conservation in wireless devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (Simul. Model. Pract. Theory, 2005)

Guest Editor's Introduction: Special Issue On Modeling and Simulation of Emerging Wireless and Sensor Network Technologies and Applications. - Helen D. Karatza (Simul., 2005)

Swarm-based Active Tunable Routing for Overhead Reduction in Multiservice Networks. - Constandinos X. Mavromoustakis; Helen D. Karatza (Annual Simulation Symposium, 2006)

On the performance analysis of recursive data replication scheme for file sharing in mobile peer-to-peer devices using the HyMIS scheme. - Constandinos X. Mavromoustakis; Helen D. Karatza (IPDPS, 2006)

Multi-site Scheduling with Multiple Job Reservations and Forecasting Methods. - Maria A. Ioannidou; Helen D. Karatza (ISPA, 2006)

A two-class parallel queue with pure space sharing among rigid jobs and general service times. - Dimitrios Filippopoulos; Helen D. Karatza (VALUETOOLS, 2006)

Optimized QoS priority routing for service tunability and overhead reduction using swarm based active network scheme. - Constandinos X. Mavromoustakis; Helen D. Karatza (Comput. Commun., 2006)

On the efficiency and performance evaluation of the bandwidth clustering scheme for adaptive and reliable resource allocation. - Constandinos X. Mavromoustakis; Helen D. Karatza (J. Syst. Softw., 2006)

Distributed Systems Simulation. - Helen D. Karatza; Georgios K. Theodoropoulos 001 (Simul. Model. Pract. Theory, 2006)

Performance evaluation of an on demand tunable resource allocation apparatus using constrained active network. - Constandinos X. Mavromoustakis; Helen D. Karatza (Simul. Model. Pract. Theory, 2006)

Introduction to the Special Issue: On Internet and Wireless Network Performance. - Helen D. Karatza (Simul., 2006)

Guest Editorial: Recent Advances in Network Modeling and Simulation. - Helen D. Karatza; Richard Fujimoto (Simul., 2006)

Performance Measures of Stream-Oriented Power Consumption for Asymmetrical Communication in Wireless Ad-Hoc Networks. - Constandinos X. Mavromoustakis; Helen D. Karatza (Annual Simulation Symposium, 2007)

An Optimal Adaptive Approach using Behavioral Promiscuous Caching and Storage-Capacity Characteristics for Energy Conservation in Asymmetrical Wireless Devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (PIMRC, 2007)

Dispersed information diffusion with level and schema-based coordination in mobile peer to peer networks. - Constandinos X. Mavromoustakis; Helen D. Karatza (Clust. Comput., 2007)

An M/M/2 parallel system model with pure space sharing among rigid jobs. - Dimitrios Filippopoulos; Helen D. Karatza (Math. Comput. Model., 2007)

Dynamic non-preemptive re-allocation policies between two sites with reconfigurable servers. - Dimitrios Filippopoulos; Helen D. Karatza (Simul. Model. Pract. Theory, 2007)

Preface: New Challenges in Large-Scale Computer Systems and Network Modeling and Simulation. - Helen D. Karatza (Simul., 2007)

Quality of Service Measures of Mobile Ad-hoc Wireless Network using Energy Consumption Mitigation with Asynchronous Inactivity Periods. - Constandinos X. Mavromoustakis; Helen D. Karatza (Simul., 2007)

Resource Allocation Strategies in a 2-Level Hierarchical Grid System. - Stylianos Zikos; Helen D. Karatza (Annual Simulation Symposium, 2008)

End-to-end layered asynchronous scheduling scheme for energy aware QoS provision in asymmetrical wireless devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (EDOCW, 2008)

Resource Discovery in a Grid System Based on Matchmaking-Routers. - Konstantinos I. Karaoglanoglou; Helen D. Karatza (Panhellenic Conference on Informatics, 2008)

A two-class parallel system with general service times of the parallel class. - Dimitrios Filippopoulos; Helen D. Karatza (J. Comput. Syst. Sci., 2008)

Under storage constraints of epidemic backup node selection using HyMIS architecture for data replication in mobile peer-to-peer networks. - Constandinos X. Mavromoustakis; Helen D. Karatza (J. Syst. Softw., 2008)

Resource Discovery in a dynamical grid based on Re-routing Tables. - Konstantinos I. Karaoglanoglou; Helen D. Karatza (Simul. Model. Pract. Theory, 2008)

An ontology-based collaborative service-oriented simulation framework with Microsoft Robotics Studio®. - Wei-Tek Tsai; Xin Sun 003; Qian Huang 002; Helen D. Karatza (Simul. Model. Pract. Theory, 2008)

The Impact of Critical Sporadic Jobs on Gang Scheduling Performance in Distributed Systems. - Helen D. Karatza (Simul., 2008)

Enabling Cooperation in MANET-Based Peer-to-Peer Systems. - Fotis Loukos; Helen D. Karatza (Mobile Peer-to-Peer Computing, 2009)

Scheduling Gangs with Different Distributions in Gangs' Degree of Parallelism in a Multi-Site System. - Zafeirios C. Papazachos; Helen D. Karatza (BCI, 2009)

Introduction. - Emmanuel Jeannot; Ramin Yahyapour; Daniel Grosu; Helen D. Karatza (Euro-Par, 2009)

Performance evaluation of a resource discovery scheme in a Grid environment prone to resource failures. - Konstantinos I. Karaoglanoglou; Helen D. Karatza (IPDPS, 2009)

Performance evaluation of gang scheduling in a two-cluster system with migrations. - Zafeirios C. Papazachos; Helen D. Karatza (IPDPS, 2009)

Enabling high throughput for delay sensitive streams using epidemic replication in clustered MP2P devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (MobiMedia, 2009)

Multi-Site Allocation Policies on a Grid and Local Level. - Sofia K. Dimitriadou; Helen D. Karatza (PASM@MASCOTS, 2009)

Communication cost effective scheduling policies of nonclairvoyant jobs with load balancing in a grid. - Stylianos Zikos; Helen D. Karatza (J. Syst. Softw., 2009)

Reputation based friend-to-friend networks. - Fotis Loukos; Helen D. Karatza (Peer-to-Peer Netw. Appl., 2009)

Performance of gang scheduling strategies in a parallel system. - Helen D. Karatza (Simul. Model. Pract. Theory, 2009)

The impact of task service time variability on gang scheduling performance in a two-cluster system. - Zafeirios C. Papazachos; Helen D. Karatza (Simul. Model. Pract. Theory, 2009)

Fault-tolerant Gang Scheduling in Distributed Real-time Systems Utilizing Imprecise Computations. - Georgios L. Stavrinides; Helen D. Karatza (Simul., 2009)

Job Scheduling in a Distributed System Using Backfilling with Inaccurate Runtime Computations. - Sofia K. Dimitriadou; Helen D. Karatza (CISIS, 2010)

Clairvoyant site allocation of jobs with highly variable service demands in a computational grid. - Stylianos Zikos; Helen D. Karatza (IPDPS Workshops, 2010)

Real-time performance evaluation of asynchronous time division traffic-aware and delay-tolerant scheme in ad hoc sensor networks. - Constandinos X. Mavromoustakis; Helen D. Karatza (Int. J. Commun. Syst., 2010)

Performance evaluation of bag of gangs scheduling in a heterogeneous distributed system. - Zafeirios C. Papazachos; Helen D. Karatza (J. Syst. Softw., 2010)

Scheduling multiple task graphs with end-to-end deadlines in distributed real-time systems utilizing imprecise computations. - Georgios L. Stavrinides; Helen D. Karatza (J. Syst. Softw., 2010)

Task cluster scheduling in a grid system. - Kyriaki Gkoutioudi; Helen D. Karatza (Simul. Model. Pract. Theory, 2010)

A Gossip-Based Optimistic Replication for Efficient Delay-Sensitive Streaming Using an Interactive Middleware Support System. - Constandinos X. Mavromoustakis; Helen D. Karatza (IEEE Syst. J., 2010)

The impact of service demand variability on resource allocation strategies in a grid system. - Stylianos Zikos; Helen D. Karatza (ACM Trans. Model. Comput. Simul., 2010)

The Impact of Input Error on the Scheduling of Task Graphs with Imprecise Computations in Heterogeneous Distributed Real-Time Systems. - Georgios L. Stavrinides; Helen D. Karatza (ASMTA, 2011)

SPECT: A system for Peer-to-Peer economic transactions. - Fotis Loukos; Helen D. Karatza (ISCC, 2011)

Performance and cost evaluation of Gang Scheduling in a Cloud Computing system with job migrations and starvation handling. - Ioannis A. Moschakis; Helen D. Karatza (ISCC, 2011)

Embedded Socio-oriented Model for End-to-End Reliable Stream Schedules by Using Collaborative Outsourcing in MP2P Systems. - Constandinos X. Mavromoustakis; Helen D. Karatza (Comput. J., 2011)

Gang scheduling in multi-core clusters implementing migrations. - Zafeirios C. Papazachos; Helen D. Karatza (Future Gener. Comput. Syst., 2011)

Acquiring Knowledge in a Grid System via a Resource Discovery Scheme. - Konstantinos I. Karaoglanoglou; Helen D. Karatza (Int. J. Model. Simul. Sci. Comput., 2011)

Resource discovery in a Grid system: Directing requests to trustworthy virtual organizations based on global trust values. - Konstantinos I. Karaoglanoglou; Helen D. Karatza (J. Syst. Softw., 2011)

AntP2PR: An ant intelligence inspired routing scheme for Peer-to-Peer networks. - Fotis Loukos; Helen D. Karatza; Constandinos X. Mavromoustakis (Simul. Model. Pract. Theory, 2011)

Scheduling multiple task graphs in heterogeneous distributed real-time systems by exploiting schedule holes with bin packing techniques. - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2011)

Performance and energy aware cluster-level scheduling of compute-intensive jobs with unknown service times. - Stylianos Zikos; Helen D. Karatza (Simul. Model. Pract. Theory, 2011)

A clairvoyant site allocation policy based on service demands of jobs in a computational grid. - Stylianos Zikos; Helen D. Karatza (Simul. Model. Pract. Theory, 2011)

Gang scheduling in a two-cluster system implementing migrations and periodic feedback. - Zafeirios C. Papazachos; Helen D. Karatza (Simul., 2011)

Performance of Clouds - Issues and Research Directions. - Helen D. Karatza (CLOSER, 2012)

Maximizing Performance and Energy Efficiency of a Real-Time Heterogeneous 2-Level Grid System Using DVS. - George Terzopoulos; Helen D. Karatza (DS-RT, 2012)

Topic 2: Performance Prediction and Evaluation. - Allen D. Malony; Helen D. Karatza; William J. Knottenbelt; Sally A. McKee (Euro-Par, 2012)

A Simulation Study of Multi-criteria Scheduling in Grid Based on Genetic Algorithms. - Kyriaki Gkoutioudi; Helen D. Karatza (ISPA, 2012)

Parallel Job Scheduling on a Dynamic Cloud Model with Variable Workload and Active Balancing. - Ioannis A. Moschakis; Helen D. Karatza (Panhellenic Conference on Informatics, 2012)

Directing requests and acquiring knowledge in a large-scale Grid system. - Konstantinos I. Karaoglanoglou; Helen D. Karatza (SPECTS, 2012)

Scheduling real-time DAGs in heterogeneous clusters by combining imprecise computations and bin packing techniques for the exploitation of schedule holes. - Georgios L. Stavrinides; Helen D. Karatza (Future Gener. Comput. Syst., 2012)

Multi-Criteria Job Scheduling in Grid Using an Accelerated Genetic Algorithm. - Kyriaki Gkoutioudi; Helen D. Karatza (J. Grid Comput., 2012)

Scheduling of frequently communicating tasks. - Zafeirios C. Papazachos; Helen D. Karatza (Int. J. Commun. Syst., 2012)

A tier-based asynchronous scheduling scheme for delay constrained energy efficient connectivity in asymmetrical wireless devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (J. Supercomput., 2012)

Evaluation of gang scheduling performance and cost in a cloud computing system. - Ioannis A. Moschakis; Helen D. Karatza (J. Supercomput., 2012)

Performance evaluation of a real-time grid system using power-saving capable processors. - George Terzopoulos; Helen D. Karatza (J. Supercomput., 2012)

Dynamic Voltage Scaling Scheduling on Power-Aware Clusters under Power Constraints. - George Terzopoulos; Helen D. Karatza (DS-RT, 2013)

Performance Evaluation of Opportunistic Resource-Sharing Scheme Using Socially Oriented Outsourcing in Wireless Devices. - Constandinos X. Mavromoustakis; Helen D. Karatza (Comput. J., 2013)

Two-server parallel system with pure space sharing and Markovian arrivals. - S. R. Chakravarthy; Helen D. Karatza (Comput. Oper. Res., 2013)

Special issue on energy efficiency in grids and clouds. - Helen D. Karatza (Simul. Model. Pract. Theory, 2013)

Special Issue on Simulation-based Performance Evaluation of Infrastructures for the Internet of Things: Connectivity and resource considerations in the mobility Era. - Helen D. Karatza; Constandinos X. Mavromoustakis (Simul. Model. Pract. Theory, 2013)

Performance evaluation and energy consumption of a real-time heterogeneous grid system using DVS and DPM. - George Terzopoulos; Helen D. Karatza (Simul. Model. Pract. Theory, 2013)

Scheduling jobs with different characteristics in distributed systems. - Helen D. Karatza (CITS, 2014)

Bag-of-Task Scheduling on Power-Aware Clusters Using a DVFS-Based Mechanism. - George Terzopoulos; Helen D. Karatza (IPDPS Workshops, 2014)

The impact of resource heterogeneity on the timeliness of hard real-time complex jobs. - Georgios L. Stavrinides; Helen D. Karatza (PETRA, 2014)

Real-time data dissemination in mobile peer-to-peer networks. - Fotis Loukos; Helen D. Karatza; Vana Kalogeraki (J. Syst. Softw., 2014)

Energy-efficient real-time heterogeneous cluster scheduling with node replacement due to failures. - George Terzopoulos; Helen D. Karatza (J. Supercomput., 2014)

Scheduling bags of tasks and gangs in a distributed system. - Zafeirios C. Papazachos; Helen D. Karatza (CITS, 2015)

Job scheduling in a grid cluster. - Kyriaki Skenteridou; Helen D. Karatza (CITS, 2015)

Message from the IWSC 2015 Workshop Organizers. - Stephen S. Yau; Wei-Tek Tsai; Kenji Takahashi; Xiaoying Bai; Helen D. Karatza (COMPSAC Workshops, 2015)

A Cost-Effective and QoS-Aware Approach to Scheduling Real-Time Workflow Applications in PaaS and SaaS Clouds. - Georgios L. Stavrinides; Helen D. Karatza (FiCloud, 2015)

Cloud Computing - State-of-the-Art and Future Research Trends. - Eleni Karatza (ICSOFT-EA, 2015)

A cloud system for health care. - Dimitris Tychalas; Helen D. Karatza (Panhellenic Conference on Informatics, 2015)

Towards scheduling for Internet-of-Things applications on clouds: a simulated annealing approach. - Ioannis A. Moschakis; Helen D. Karatza (Concurr. Comput. Pract. Exp., 2015)

Multi-criteria scheduling of Bag-of-Tasks applications on heterogeneous interlinked clouds with simulated annealing. - Ioannis A. Moschakis; Helen D. Karatza (J. Syst. Softw., 2015)

Guest editor's introduction: Special issue on resource management in mobile clouds. - Helen D. Karatza (Simul. Model. Pract. Theory, 2015)

Special issue on "Techniques and applications for sustainable ultrascale computing systems". - Helen D. Karatza; Jesús Carretero 001 (Simul. Model. Pract. Theory, 2015)

A meta-heuristic optimization approach to the scheduling of bag-of-tasks applications on heterogeneous clouds with multi-level arrivals and critical jobs. - Ioannis A. Moschakis; Helen D. Karatza (Simul. Model. Pract. Theory, 2015)

Energy Efficiency for Ultrascale Systems: Challenges and Trends from Nesus Project. - Michel Bagein; Jorge G. Barbosa; Vicente Blanco Pérez; Ivona Brandic; Samuel Cremer; Sébastien Fremal; Helen D. Karatza; Laurent Lefèvre; Toni Mastelic; Ariel Oleksiak; Anne-Cécile Orgerie; Georgios L. Stavrinides; et al. (Supercomput. Front. Innov., 2015)

Exascale Machines Require New Programming Paradigms and Runtimes. - Georges Da Costa; Thomas Fahringer; Juan-Antonio Rico-Gallego; Ivan Grasso; Atanas Hristov; Helen D. Karatza; Alexey L. Lastovetsky; Fabrizio Marozzo; Dana Petcu; Georgios L. Stavrinides; Domenico Talia; Paolo Trunfio; et al. (Supercomput. Front. Innov., 2015)

Honeypot-Powered Malware Reverse Engineering. - Michele Bombardieri; Salvatore Castanò; Fabrizio Curcio; Angelo Furfaro; Helen D. Karatza (IC2E Workshops, 2016)

Bag-of-Tasks Load Balancing on Power-Aware Clusters. - George Terzopoulos; Helen D. Karatza (PDP, 2016)

Scheduling real-time parallel applications in SaaS clouds in the presence of transient software failures. - Georgios L. Stavrinides; Helen D. Karatza (SPECTS, 2016)

Power-aware Bag-of-Tasks scheduling on heterogeneous platforms. - George Terzopoulos; Helen D. Karatza (Clust. Comput., 2016)

Advances on information and communication systems. - Rehab Duwairi; Helen D. Karatza (Simul. Model. Pract. Theory, 2016)

The impact of data locality on the performance of a SaaS cloud with real-time data-intensive applications. - Georgios L. Stavrinides; Helen D. Karatza (DS-RT, 2017)

The Effect of Workload Computational Demand Variability on the Performance of a SaaS Cloud with a Multi-tier SLA. - Georgios L. Stavrinides; Helen D. Karatza (FiCloud, 2017)

Periodic scheduling of mixed workload in distributed systems. - Georgios L. Stavrinides; Helen D. Karatza (ICE/ITMC, 2017)

Performance and Overhead Study of Containers Running on Top of Virtual Machines. - Ilias Mavridis; Helen D. Karatza (CBI (2), 2017)

Energy Efficiency in Large Scale Distributed Systems: The Role of Simulation. - Helen D. Karatza (ICPE Companion, 2017)

Simulation-Based Performance Evaluation of an Energy-Aware Heuristic for the Scheduling of HPC Applications in Large-Scale Distributed Systems. - Georgios L. Stavrinides; Helen D. Karatza (ICPE Companion, 2017)

High performance system based on Cloud and beyond: Jungle Computing. - Dimitrios Tychalas; Helen D. Karatza (J. Comput. Sci., 2017)

Performance evaluation of cloud-based log file analysis with Apache Hadoop and Apache Spark. - Ilias Mavridis; Helen D. Karatza (J. Syst. Softw., 2017)

Smart Cities and Internet of Things. - Helen D. Karatza (Simul. Model. Pract. Theory, 2017)

High-performance modelling and simulation for big data applications. - Joanna Kolodziej; Horacio González-Vélez; Helen D. Karatza (Simul. Model. Pract. Theory, 2017)

Different aspects of workflow scheduling in large-scale distributed systems. - Georgios L. Stavrinides; Francisco Rodrigo Duro; Helen D. Karatza; Francisco Javier García Blas; Jesús Carretero 001 (Simul. Model. Pract. Theory, 2017)

Scheduling Data-Intensive Workloads in Large-Scale Distributed Systems: Trends and Challenges. - Georgios L. Stavrinides; Helen D. Karatza (Modeling and Simulation in HPC and Cloud Systems, 2018)

Task Group Scheduling in Distributed Systems. - Georgios L. Stavrinides; Helen D. Karatza (CITS, 2018)

Allocating jobs of different priorities to a distributed system with heterogeneous resources. - Stylianos Zikos; Helen D. Karatza (CITS, 2018)

Energy-Aware Scheduling of Real-Time Workflow Applications in Clouds Utilizing DVFS and Approximate Computations. - Georgios L. Stavrinides; Helen D. Karatza (FiCloud, 2018)

Simulation and performance evaluation of a fog system. - Dimitrios Tychalas; Helen D. Karatza (FMEC, 2018)

Scheduling techniques for complex workloads in distributed systems. - Georgios L. Stavrinides; Helen D. Karatza (ICFNDS, 2018)

The impact of checkpointing interval selection on the scheduling performance of real-time fine-grained parallel applications in SaaS clouds under various failure probabilities. - Georgios L. Stavrinides; Helen D. Karatza (Concurr. Comput. Pract. Exp., 2018)

The impact of workload variability on the energy efficiency of large-scale heterogeneous distributed systems. - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2018)

Energy monitoring as an essential building block towards sustainable ultrascale systems. - Francisco Almeida; Marcos Dias de Assunção; Jorge G. Barbosa; Vicente Blanco Pérez; Ivona Brandic; Georges Da Costa; Manuel F. Dolz; Anne C. Elster; Mateusz Jarus; Helen D. Karatza; Laurent Lefèvre; Ilias Mavridis; et al. (Sustain. Comput. Informatics Syst., 2018)

Scheduling Different Types of Gang Jobs in Distributed Systems. - Georgios L. Stavrinides; Helen D. Karatza (CITS, 2019)

Clouds for Real-Time Applications Scheduling Issues. - Eleni Karatza (CLOSER, 2019)

Clouds for Real-Time Applications - Scheduling Issues and Research Directions. - Eleni Karatza (COMPLEXIS, 2019)

Cost-Effective Utilization of Complementary Cloud Resources for the Scheduling of Real-Time Workflow Applications in a Fog Environment. - Georgios L. Stavrinides; Helen D. Karatza (FiCloud, 2019)

Scheduling Single-Task Jobs along with Bag-of-Task-Chains in Distributed Systems. - Georgios L. Stavrinides; Helen D. Karatza (ICFNDS, 2019)

Scheduling Bag-of-Task-Chains in Distributed Systems. - Georgios L. Stavrinides; Helen D. Karatza (ISADS, 2019)

Lightweight Virtualization Approaches for Software-Defined Systems and Cloud Computing: An Evaluation of Unikernels and Containers. - Ilias Mavridis; Helen D. Karatza (SDS, 2019)

Combining containers and virtual machines to enhance isolation and extend functionality on cloud computing. - Ilias Mavridis; Helen D. Karatza (Future Gener. Comput. Syst., 2019)

An energy-efficient, QoS-aware and cost-effective scheduling approach for real-time workflow applications in cloud computing systems utilizing DVFS and approximate computations. - Georgios L. Stavrinides; Helen D. Karatza (Future Gener. Comput. Syst., 2019)

A hybrid approach to scheduling real-time IoT workflows in fog and cloud environments. - Georgios L. Stavrinides; Helen D. Karatza (Multim. Tools Appl., 2019)

Modeling and simulation of cloud computing and big data. - Helen D. Karatza; Georgios L. Stavrinides (Simul. Model. Pract. Theory, 2019)

Performance evaluation of a SaaS cloud under different levels of workload computational demand variability and tardiness bounds. - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2019)

Companion data of a Systematic Mapping Study of Programming Languages for Data-Intensive HPC Applications. - Vasco Amaral 001; Beatriz Norberto; Miguel Goulão; Marco Aldinucci; Siegfried Benkner; Andrea Bracciali; Paulo Carreira 001; Edgars Celms; Luís Correia 001; Clemens Grelck; Helen D. Karatza; Christoph W. Kessler; et al. (Zenodo, 2019)

Companion data of a Systematic Mapping Study of Programming Languages for Data-Intensive HPC Applications. - Vasco Amaral 001; Beatriz Norberto; Miguel Goulão; Marco Aldinucci; Siegfried Benkner; Andrea Bracciali; Paulo Carreira 001; Edgars Celms; Luís Correia 001; Clemens Grelck; Helen D. Karatza; Christoph W. Kessler; et al. (Zenodo, 2019)

Weighted Scheduling of Mixed Gang Jobs on Distributed Resources. - Georgios L. Stavrinides; Helen D. Karatza (CCCI, 2020)

Multi-Criteria Scheduling of Complex Workloads on Distributed Resources. - Georgios L. Stavrinides; Helen D. Karatza (CITS, 2020)

Orchestration of Real-Time Workflows with Varying Input Data Locality in a Heterogeneous Fog Environment. - Georgios L. Stavrinides; Helen D. Karatza (FMEC, 2020)

Cloud vs Fog Computing - Scheduling Real-Time Applications. - Helen D. Karatza (MECO, 2020)

An Advanced Weighted Round Robin Scheduling Algorithm. - Dimitrios Tychalas; Helen D. Karatza (PCI, 2020)

Scheduling a Time-Varying Workload of Multiple Types of Jobs on Distributed Resources. - Georgios L. Stavrinides; Helen D. Karatza (SPECTS, 2020)

Scheduling real-time bag-of-tasks applications with approximate computations in SaaS clouds. - Georgios L. Stavrinides; Helen D. Karatza (Concurr. Comput. Pract. Exp., 2020)

Programming languages for data-Intensive HPC applications: A systematic mapping study. - Vasco Amaral 001; Beatriz Norberto; Miguel Goulão; Marco Aldinucci; Siegfried Benkner; Andrea Bracciali; Paulo Carreira 001; Edgars Celms; Luís Correia 001; Clemens Grelck; Helen D. Karatza; Christoph W. Kessler; et al. (Parallel Comput., 2020)

"Modeling and simulation of fog computing". - Helen D. Karatza; Georgios L. Stavrinides (Simul. Model. Pract. Theory, 2020)

A Scheduling Algorithm for a Fog Computing System with Bag-of-Tasks Jobs: Simulation and Performance Evaluation. - Dimitrios Tychalas; Helen D. Karatza (Simul. Model. Pract. Theory, 2020)

Fault-Tolerant Orchestration of Bags-of-Tasks with Application-Directed Checkpointing in a Distributed Environment. - Georgios L. Stavrinides; Helen D. Karatza (CCCI, 2021)

Resource Assignment Strategies for Bags-of-Tasks in Distributed Systems. - Georgios L. Stavrinides; Helen D. Karatza (CITS, 2021)

Large Scale Real-time Distributed Systems - Resource Allocation and Scheduling Issues. - Helen D. Karatza (ECBS, 2021)

Security and Cost Aware Scheduling of Real-Time IoT Workflows in a Mist Computing Environment. - Georgios L. Stavrinides; Helen D. Karatza (FiCloud, 2021)

Scheduling Real-Time IoT Workflows in a Fog Computing Environment Utilizing Cloud Resources with Data-Aware Elasticity. - Georgios L. Stavrinides; Helen D. Karatza (FMEC, 2021)

Keynote Speech 1: Leveraging Cloud and Fog Computing for Real-Time Applications: Resource Allocation and Scheduling Issues. - Helen D. Karatza (IDSTA, 2021)

Orchestrating Bag-of-Tasks Applications with Dynamically Spawned Tasks in a Distributed Environment. - Georgios L. Stavrinides; Helen D. Karatza (SPECTS, 2021)

Orchestrating real-time IoT workflows in a fog computing environment utilizing partial computations with end-to-end error propagation. - Georgios L. Stavrinides; Helen D. Karatza (Clust. Comput., 2021)

SaMW: a probabilistic meta-heuristic algorithm for job scheduling in heterogeneous distributed systems powered by microservices. - Dimitrios Tychalas; Helen D. Karatza (Clust. Comput., 2021)

Cost-aware cloud bursting in a fog-cloud environment with real-time workflow applications. - Georgios L. Stavrinides; Helen D. Karatza (Concurr. Comput. Pract. Exp., 2021)

Dynamic scheduling of bags-of-tasks with sensitive input data and end-to-end deadlines in a hybrid cloud. - Georgios L. Stavrinides; Helen D. Karatza (Multim. Tools Appl., 2021)

Guest Editors' Introduction "Modeling and Simulation for Intelligent Distributed Computing". - Helen D. Karatza; Igor V. Kotenko (Simul. Model. Pract. Theory, 2021)

Special issue on IoT modeling and simulation in smart-anything computation at the edge. - Raffaele Montella; Giancarlo Fortino; Eleni Karatza (Simul. Model. Pract. Theory, 2021)

Guest editors' introduction: "Modeling and simulation of hybrid clouds". - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2021)

Multicriteria scheduling of linear workflows with dynamically varying structure on distributed platforms. - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2021)

Resource Allocation and Scheduling of Linear Workflow Applications with Ageing Priorities and Transient Failures. - Georgios L. Stavrinides; Helen D. Karatza (AICCSA, 2022)

Workload Scheduling in Fog and Cloud Environments: Emerging Concepts and Research Directions. - Georgios L. Stavrinides; Helen D. Karatza (Honoring Professor Mohammad S. Obaidat, 2022)

Scheduling Tightly Coupled Parallel Jobs With Runtime-Extended Tasks on Distributed Resources. - Georgios L. Stavrinides; Helen D. Karatza (CCCI, 2022)

Security-Aware Orchestration of Linear Workflows on Distributed Resources. - Georgios L. Stavrinides; Helen D. Karatza (CITS, 2022)

The Effect of Laxity of Real-Time Workflow Applications on the Performance of Elastic Cloud Resources. - Georgios L. Stavrinides; Helen D. Karatza (FiCloud, 2022)

Resource Allocation and Scheduling of Real-Time Workflow Applications in an IoT-Fog-Cloud Environment. - Georgios L. Stavrinides; Helen D. Karatza (FMEC, 2022)

"Containerization, microservices and serverless cloud computing: Modeling and simulation". - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2022)

Leveraging blockchain and AI for IoT, mist, fog and cloud computing: A performance modeling and simulation perspective. - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2022)

A Hybrid Epoch Scheduling Scheme of Mixed Workloads with Different Types of Jobs on Distributed Processors. - Helen D. Karatza (AICCSA, 2023)

Scheduling Different Types of Linear Workflows with Partial Computations in a Distributed System. - Helen D. Karatza (CCCI, 2023)

Scheduling Delay-Sensitive Bag-of-Task Jobs with Imprecise Computations on Distributed Resources. - Helen D. Karatza (CITS, 2023)

Scheduling Critical Periodic Jobs with Partial Computations along with Gang Jobs. - Helen D. Karatza (FiCloud, 2023)

Scheduling Linear Workflows with Various Levels of Privacy Requirements in a Fog - Cloud Environment. - Helen D. Karatza (ICCTA, 2023)

Scheduling Linear Workflows with Dynamically Adjustable Exit Tasks on Distributed Resources. - Georgios L. Stavrinides; Helen D. Karatza (ISADS, 2023)

Orchestrated sandboxed containers, unikernels, and virtual machines for isolation-enhanced multitenant workloads and serverless computing in cloud. - Ilias Mavridis; Helen D. Karatza (Concurr. Comput. Pract. Exp., 2023)

Cyber-physical systems, digital twins and Industry 4.0: The role of modeling and simulation. - Georgios L. Stavrinides; Helen D. Karatza (Simul. Model. Pract. Theory, 2023)

Introduction on cloud, fog and mist computing - Resource allocation and scheduling perspectives. - Helen D. Karatza (Simul. Model. Pract. Theory, 2023)

Allocation and Scheduling of Linear Workflows Incorporating Security Constraints Across Fog and Cloud Infrastructures. - Helen D. Karatza (CITS, 2024)

Scheduling Bag-of-Task Jobs with Security Requirements and Partial Computations in a Fog - Cloud System. - Helen D. Karatza (FiCloud, 2024)

Scheduling Linear Workflows with Multicriteria based Partial Computations in a Cloud-Fog-Mist Environment. - Helen D. Karatza (FMEC, 2024)

Scheduling Gang Jobs with Partial Computations in a Collaborative Fog-Cloud System. - Helen D. Karatza (ICCA, 2024)

Scheduling critical periodic jobs with selective partial computations along with gang jobs. - Helen D. Karatza (Big Data Res., 2024)

Modeling and simulation of services computing✰. - Helen D. Karatza (Simul. Model. Pract. Theory, 2024)

Modeling and Simulation of Cloud Computing for e-Business. - Helen D. Karatza (Simul. Model. Pract. Theory, 2024)

Resource allocation and aging priority-based scheduling of linear workflow applications with transient failures and selective imprecise computations. - Helen D. Karatza; Georgios L. Stavrinides (Clust. Comput., 2024)

Security, Cost and Energy Aware Scheduling of Real-Time IoT Workflows in a Mist Computing Environment. - Georgios L. Stavrinides; Helen D. Karatza (Inf. Syst. Frontiers, 2024)

Scheduling Gang Jobs with Security Requirements on a Hybrid Cloud. - Helen D. Karatza (CITS, 2025)

Scheduling Complex Workloads with Security Constraints in a Cloud-Fog-Mist System. - Helen D. Karatza (FiCloud, 2025)

Scheduling bag-of-task jobs with security requirements and dual-criteria partial computations in a fog - cloud system. - Helen D. Karatza (Simul. Model. Pract. Theory, 2025)

Research Challenges in the Edge-Cloud Continuum. - Helen D. Karatza (Simul. Model. Pract. Theory, 2025)

Guest Editors' Introduction on Cloud and Fog Computing for Real-Time IoT Applications. - Helen D. Karatza (Simul. Model. Pract. Theory, 2025)

Scheduling Data-Intensive Workloads in Large-Scale Distributed Systems: Trends and Challenges. - Georgios L. Stavrinides; Helen D. Karatza (CoRR, 2025)