Nikos Tziritas

Publication Activity (10 Years)

Years Active: 2007-2024
Publications (10 Years): 60

Top Topics

Matching Strategy

Resource Allocation

Scheduling Problem

Top Venues

IEEE Trans. Sustain. Comput.

Publications

Christian Roberto Vergara, Georgios Theodoropoulos, Rami Bahsoon, Wendy Yánez, Nikos Tziritas
Federated Digital Twins as an Enabling Technology for Collaborative Decision-Making. SIGSIM-PADS (2024)
Jingran Shen, Nikos Tziritas, Georgios Theodoropoulos
Towards a Flexible Accuracy-Oriented Deep Learning Module Inference Latency Prediction Framework for Adaptive Optimization Algorithms. Intelligent Information Processing (1) (2024)
Nan Zhang, Rami Bahsoon, Nikos Tziritas, Georgios Theodoropoulos
Knowledge Equivalence in Digital Twins of Intelligent Systems. ACM Trans. Model. Comput. Simul. 34 (1) (2024)
Nan Zhang, Christian Roberto Vergara Marcillo, Georgios Diamantopoulos, Jingran Shen, Nikos Tziritas, Rami Bahsoon, Georgios Theodoropoulos
Large Language Models for Explainable Decisions in Dynamic Digital Twins. CoRR (2024)
Georgios Diamantopoulos, Georgios Theodoropoulos, Nikos Tziritas, Rami Bahsoon
Towards LLM Augmented Discrete Event Simulation of Blockchain Systems. SIGSIM-PADS (2024)
Zhuoyao Huang, Nan Zhang, Jingran Shen, Georgios Diamantopoulos, Zhengchang Hua, Nikos Tziritas, Georgios Theodoropoulos
Distributed Simulation for Digital Twins of Large-Scale Real-World DiffServ-Based Networks. CoRR (2024)
Georgios Diamantopoulos, Nikos Tziritas, Rami Bahsoon, Georgios Theodoropoulos
Dynamic Blockchain Reconfiguration: Balancing the Trilemma Trade-off Using Digital Twins. DS-RT (2023)
Georgios Diamantopoulos, Nikos Tziritas, Rami Bahsoon, Georgios Theodoropoulos
Dynamic Data-Driven Digital Twins for Blockchain Systems. CoRR (2023)
Dimitris Papathanasiou, Konstantinos Demertzis, Nikos Tziritas
Machine Failure Prediction Using Survival Analysis. Future Internet 15 (5) (2023)
Christian Vergara, Rami Bahsoon, Georgios Theodoropoulos, Wendy Yánez, Nikos Tziritas
Federated Digital Twin. DS-RT (2023)
Georgios Diamantopoulos, Rami Bahsoon, Nikos Tziritas, Georgios Theodoropoulos
SymBChainSim: A Novel Simulation Tool for Dynamic and Adaptive Blockchain Management and its Trilemma Tradeoff. SIGSIM-PADS (2023)
Jingran Shen, Nikos Tziritas, Georgios Theodoropoulos
Towards A Flexible Accuracy-Oriented Deep Learning Module Inference Latency Prediction Framework for Adaptive Optimization Algorithms. CoRR (2023)
Nan Zhang, Rami Bahsoon, Nikos Tziritas, Georgios Theodoropoulos
A Digital Twin Approach for Adaptive Compliance in Cyber-Physical Systems: Case of Smart Warehouse Logistics. CoRR (2023)
Georgios Diamantopoulos, Nikos Tziritas, Rami Bahsoon, Georgios Theodoropoulos
Dynamic Data-Driven Digital Twins for Blockchain Systems. DDDAS (2022)
Georgios Diamantopoulos, Nikos Tziritas, Rami Bahsoon, Georgios Theodoropoulos
Digital Twins for Dynamic Management of Blockchain Systems. WSC (2022)
Panagiotis Oikonomou, Nikos Tziritas, Thanasis Loukopoulos, Georgios Theodoropoulos, Masatoshi Hanai, Samee U. Khan
Online Algorithms for the Interval Scheduling Problem in the Cloud: Affinity Pair Threshold Based Approaches. IEEE Trans. Sustain. Comput. 7 (2) (2022)
Nan Zhang, Rami Bahsoon, Nikos Tziritas, Georgios Theodoropoulos
Explainable Human-in-the-loop Dynamic Data-Driven Digital Twins. CoRR (2022)
Jingran Shen, Nikos Tziritas, Georgios Theodoropoulos
A Baselined Gated Attention Recurrent Network for Request Prediction in Ridesharing. CoRR (2022)
Nan Zhang, Rami Bahsoon, Nikos Tziritas, Georgios Theodoropoulos
Explainable Human-in-the-Loop Dynamic Data-Driven Digital Twins. DDDAS (2022)
Nan Zhang, Rami Bahsoon, Nikos Tziritas, Georgios Theodoropoulos
Knowledge Equivalence in Digital Twins of Intelligent Systems. CoRR (2022)
Georgios Diamantopoulos, Nikos Tziritas, Rami Bahsoon, Georgios Theodoropoulos
Digital Twins for Dynamic Management of Blockchain Systems. CoRR (2022)
Jingran Shen, Nikos Tziritas, Georgios Theodoropoulos
A Baselined Gated Attention Recurrent Network for Request Prediction in Ridesharing. IEEE Access 10 (2022)
Panagiotis Oikonomou, Kostas Kolomvatsos, Christos Anagnostopoulos, Nikos Tziritas, Georgios Theodoropoulos
A Probabilistic Batch Oriented Proactive Workflow Management. ICTAI (2021)
Nikos Pappas, Panagiotis Oikonomou, Nikos Tziritas, Kostas Kolomvatsos, Thanasis Loukopoulos
Bin Packing Heuristics for the Multiple Workflow Scheduling Problem. PCI (2021)
Panagiotis Oikonomou, Nikos Tziritas, Kostas Kolomvatsos, Thanasis Loukopoulos
Fast Heuristics for Mixed Fleet Capacitated Multiple TSP with Applications to Location Based Games and Drone Assisted Transportation. PCI (2021)
Masatoshi Hanai, Nikos Tziritas, Toyotaro Suzumura, Wentong Cai, Georgios Theodoropoulos
Time-Efficient and High-Quality Graph Partitioning for Graph Dynamic Scaling. CoRR (2021)
Panagiotis Oikonomou, Nikos Tziritas, Georgios Theodoropoulos, Maria G. Koziri, Thanasis Loukopoulos, Samee U. Khan
Graph-based Approaches for the Interval Scheduling Problem. ICPADS (2020)
Panagiotis Oikonomou, Kostas Kolomvatsos, Nikos Tziritas, Georgios Theodoropoulos, Thanasis Loukopoulos, Georgios I. Stamoulis
Uncertainty Driven Workflow Scheduling Using Unreliable Cloud Resources. NCA (2020)
Konstantinos Demertzis, Lazaros Iliadis, Nikos Tziritas, Panagiotis Kikiras
Anomaly detection via blockchained deep learning smart contracts in industry 4.0. Neural Comput. Appl. 32 (23) (2020)
Shuyi Chen, Masatoshi Hanai, Zhengchang Hua, Nikos Tziritas, Georgios Theodoropoulos
Efficient Direct Agent Interaction in Optimistic Distributed Multi-Agent-System Simulations. SIGSIM-PADS (2020)
Nikos Tziritas, Samee U. Khan, Thanasis Loukopoulos, Spyros Lalis, Cheng-Zhong Xu, Keqin Li, Albert Y. Zomaya
Online Inter-Datacenter Service Migrations. IEEE Trans. Cloud Comput. 8 (4) (2020)
Panagiotis Oikonomou, Kostas Kolomvatsos, Nikos Tziritas, Georgios Theodoropoulos, Thanasis Loukopoulos, Georgios I. Stamoulis
A Fuzzy Logic Controller for Tasks Scheduling Using Unreliable Cloud Resources. CoRR (2020)
Nikos Tziritas, Thanasis Loukopoulos, Samee Khan, Cheng-Zhong Xu, Albert Y. Zomaya
Online Live VM Migration Algorithms to Minimize Total Migration Time and Downtime. IPDPS (2019)
Natalia Panagou, Maria G. Koziri, Panos K. Papadopoulos, Panagiotis Oikonomou, Nikos Tziritas, Kostas Kolomvatsos, Thanasis Loukopoulos, Samee U. Khan
Evaluation of Heterogeneous Scheduling Algorithms for Wavefront and Tile Parallelism in Video Coding. ICIOT (2019)
Aftab Ahmed Chandio, Nikos Tziritas, Muhammad Saleem Chandio, Cheng-Zhong Xu
Energy efficient VM scheduling strategies for HPC workloads in cloud data centers. Sustain. Comput. Informatics Syst. 24 (2019)
Konstantinos Demertzis, Lazaros S. Iliadis, Panayiotis Kikiras, Nikos Tziritas
Cyber-Typhon: An Online Multi-task Anomaly Detection Framework. AIAI (2019)
Konstantinos Demertzis, Nikos Tziritas, Panayiotis Kikiras, Salvador Llopis Sánchez, Lazaros Iliadis
The Next Generation Cognitive Security Operations Center: Adaptive Analytic Lambda Architecture for Efficient Defense against Adversarial Attacks. Big Data Cogn. Comput. 3 (1) (2019)
Thanasis Loukopoulos, Nikos Tziritas, Maria G. Koziri, George I. Stamoulis, Samee U. Khan, Cheng-Zhong Xu, Albert Y. Zomaya
Data Stream Processing at Network Edges. IPDPS Workshops (2018)
Panos K. Papadopoulos, Maria G. Koziri, Nikos Tziritas, Thanasis Loukopoulos, Ioannis Anagnostopoulos, Petr Saloun, David Andresic
On the Evaluation of Coarse Grained Parallelism in AV1 Video Coding. SMAP (2018)
Maria G. Koziri, Panos K. Papadopoulos, Nikos Tziritas, Thanasis Loukopoulos, Samee U. Khan, Albert Y. Zomaya
Efficient Cloud Provisioning for Video Transcoding: Review, Open Challenges and Future Opportunities. IEEE Internet Comput. 22 (5) (2018)
Thanasis Loukopoulos, Nikos Tziritas, Maria G. Koziri, Georgios I. Stamoulis, Samee Khan
A Pareto-Efficient Algorithm for Data Stream Processing at Network Edges. CloudCom (2018)
Nikos Tziritas, Saad Mustafa, Maria G. Koziri, Thanasis Loukopoulos, Samee U. Khan, Cheng-Zhong Xu, Albert Y. Zomaya
Server Consolidation in Cloud Computing. ICPADS (2018)
Tahir Maqsood, Nikos Tziritas, Thanasis Loukopoulos, Sajjad Ahmad Madani, Samee U. Khan, Cheng-Zhong Xu, Albert Y. Zomaya
Energy and communication aware task mapping for MPSoCs. J. Parallel Distributed Comput. 121 (2018)
Konstantinos Demertzis, Panayiotis Kikiras, Nikos Tziritas, Salvador Llopis Sánchez, Lazaros Iliadis
The Next Generation Cognitive Security Operations Center: Network Flow Forensics Using Cybersecurity Intelligence. Big Data Cogn. Comput. 2 (4) (2018)
Nikos Tziritas, Thanasis Loukopoulos, Samee Khan, Cheng-Zhong Xu, Albert Y. Zomaya
A Communication-Aware Energy-Efficient Graph-Coloring Algorithm for VM Placement in Clouds. SmartWorld/SCALCOM/UIC/ATC/CBDCom/IOP/SCI (2018)
Panagiotis Oikonomou, Maria G. Koziri, Nikos Tziritas, Antonios N. Dadaliaris, Thanasis Loukopoulos, Georgios I. Stamoulis, Samee U. Khan
Scheduling Video Transcoding Jobs in the Cloud. iThings/GreenCom/CPSCom/SmartData (2018)
Maria G. Koziri, Panos K. Papadopoulos, Nikos Tziritas, Nikos Giachoudis, Thanasis Loukopoulos, Samee U. Khan, Georgios I. Stamoulis
Heuristics for tile parallelism in HEVC. EUSIPCO (2017)
Muhammad Qasim, Touseef Iqbal, Ehsan Ullah Munir, Nikos Tziritas, Samee U. Khan, Laurence T. Yang
Dynamic Mapping of Application Workflows in Heterogeneous Computing Environments. IPDPS Workshops (2017)
Dimitris Skoumpourdis, Panos K. Papadopoulos, Maria G. Koziri, Nikos Tziritas, Thanasis Loukopoulos, Ioannis Anagnostopoulos
On Improving the Speedup of Slice and Tile Level Parallelism in HEVC Using AVX2. PCI (2017)
Maria G. Koziri, Panos K. Papadopoulos, Nikos Tziritas, Antonios N. Dadaliaris, Thanasis Loukopoulos, Georgios I. Stamoulis
On planning the adoption of new video standards in social media networks: a general framework and its application to HEVC. Soc. Netw. Anal. Min. 7 (1) (2017)
Nikos Tziritas, Maria G. Koziri, Areti Bachtsevani, Thanasis Loukopoulos, George I. Stamoulis, Samee U. Khan, Cheng-Zhong Xu
Data Replication and Virtual Machine Migrations to Mitigate Network Overhead in Edge Computing Systems. IEEE Trans. Sustain. Comput. 2 (4) (2017)
Tahir Maqsood, Nikos Tziritas, Thanasis Loukopoulos, Sajjad Ahmad Madani, Samee U. Khan, Cheng-Zhong Xu
Leveraging on Deep Memory Hierarchies to Minimize Energy Consumption and Data Access Latency on Single-Chip Cloud Computers. IEEE Trans. Sustain. Comput. 2 (2) (2017)
Nikos Tziritas, Thanasis Loukopoulos, Samee U. Khan, Cheng-Zhong Xu, Albert Y. Zomaya
On Improving Constrained Single and Group Operator Placement Using Evictions in Big Data Environments. IEEE Trans. Serv. Comput. 9 (5) (2016)
Aftab Ahmed Chandio, Nikos Tziritas, Fan Zhang, Ling Yin, Cheng-Zhong Xu
Towards adaptable and tunable cloud-based map-matching strategy for GPS trajectories. Frontiers Inf. Technol. Electron. Eng. 17 (12) (2016)
Maria G. Koziri, Panos Papadopoulos, Nikos Tziritas, Antonios N. Dadaliaris, Thanasis Loukopoulos, Samee U. Khan
Slice-based parallelization in HEVC encoding: Realizing the potential through efficient load balancing. MMSP (2016)
Abdul Hameed, Alireza Khoshkbarforoushha, Rajiv Ranjan, Prem Prakash Jayaraman, Joanna Kolodziej, Pavan Balaji, Sherali Zeadally, Qutaibah Marwan Malluhi, Nikos Tziritas, Abhinav Vishnu, Samee U. Khan, Albert Y. Zomaya
A survey and taxonomy on energy efficient resource allocation techniques for cloud computing systems. Computing 98 (7) (2016)
Amine Roukh, Ladjel Bellatreche, Nikos Tziritas, Carlos Ordonez
Energy-Aware Query Processing on a Parallel Database Cluster Node. ICA3PP (2016)
Saif Ur Rehman Malik, Samee U. Khan, Sam J. Ewen, Nikos Tziritas, Joanna Kolodziej, Albert Y. Zomaya, Sajjad Ahmad Madani, Nasro Min-Allah, Lizhe Wang, Cheng-Zhong Xu, Qutaibah M. Malluhi, Johnatan E. Pecero, Pavan Balaji, Abhinav Vishnu, Rajiv Ranjan, Sherali Zeadally, Hongxiang Li
Performance analysis of data intensive cloud systems based on data management and replication: a survey. Distributed Parallel Databases 34 (2) (2016)
Maria G. Koziri, Panos K. Papadopoulos, Nikos Tziritas, Antonios N. Dadaliaris, Thanasis Loukopoulos, Samee U. Khan, Cheng-Zhong Xu
Adaptive Tile Parallelization for Fast Video Encoding in HEVC. iThings/GreenCom/CPSCom/SmartData (2016)
Maria G. Koziri, Panos Papadopoulos, Nikos Tziritas, Antonios N. Dadaliaris, Thanasis Loukopoulos, Georgios I. Stamoulis
A framework for scheduling the encoding of multiple smart user videos. SMAP (2016)
Rizwana Irfan, Christine K. King, Daniel Grages, Sam J. Ewen, Samee U. Khan, Sajjad Ahmad Madani, Joanna Kolodziej, Lizhe Wang, Dan Chen, Ammar Rayes, Nikos Tziritas, Cheng-Zhong Xu, Albert Y. Zomaya, Ahmed Saeed Alzahrani, Hongxiang Li
A survey on text mining in social networks. Knowl. Eng. Rev. 30 (2) (2015)
Nikos Tziritas, Thanasis Loukopoulos, Spyros Lalis, Samee Ullah Khan, Cheng-Zhong Xu
Coordination Strategies for Agent Migrations in Wireless Sensor Networks. ICPADS (2015)
Nikos Tziritas, Thanasis Loukopoulos, Samee U. Khan, Cheng-Zhong Xu
Distributed Algorithms for the Operator Placement Problem. IEEE Trans. Comput. Soc. Syst. 2 (4) (2015)
Aftab Ahmed Chandio, Nikos Tziritas, Fan Zhang, Cheng-Zhong Xu
An Approach for Map-Matching Strategy of GPS-Trajectories Based on the Locality of Road Networks. IOV (2015)
Saad Mustafa, Kashif Bilal, Sajjad Ahmad Madani, Nikos Tziritas, Samee Ullah Khan, Laurence T. Yang
Performance Evaluation of Energy-Aware Best Fit Decreasing Algorithms for Cloud Environments. DSDIS (2015)
Nikos Tziritas, Samee Ullah Khan, Thanasis Loukopoulos, Spyros Lalis, Cheng-Zhong Xu, Petros Lampsas
Single and Group Agent Migration: Algorithms, Bounds, and Optimality Issues. IEEE Trans. Computers 63 (12) (2014)
Aftab Ahmed Chandio, Kashif Bilal, Nikos Tziritas, Zhibin Yu, Qingshan Jiang, Samee Ullah Khan, Cheng-Zhong Xu
A comparative study on resource allocation and energy efficient job scheduling strategies in large-scale parallel computing systems. Clust. Comput. 17 (4) (2014)
Muhammad Bilal Qureshi, Maryam Mehri Dehnavi, Nasro Min-Allah, Muhammad Shuaib Qureshi, Hameed Hussain, Ilias Rentifis, Nikos Tziritas, Thanasis Loukopoulos, Samee Ullah Khan, Cheng-Zhong Xu, Albert Y. Zomaya
Survey on Grid Resource Allocation Mechanisms. J. Grid Comput. 12 (2) (2014)
Aftab Ahmed Chandio, Cheng-Zhong Xu, Nikos Tziritas, Kashif Bilal, Samee Ullah Khan
A Comparative Study of Job Scheduling Strategies in Large-Scale Parallel Computational Systems. TrustCom/ISPA/IUCC (2013)
Nikos Tziritas, Cheng-Zhong Xu, Thanasis Loukopoulos, Samee Ullah Khan, Zhibin Yu
Application-Aware Workload Consolidation to Minimize Both Energy Consumption and Network Load in Cloud Environments. ICPP (2013)
Nikos Tziritas, Spyros Lalis, Samee Ullah Khan, Thanasis Loukopoulos, Cheng-Zhong Xu, Petros Lampsas
Distributed Online Algorithms for the Agent Migration Problem in WSNs. Mob. Networks Appl. 18 (5) (2013)
Nikos Tziritas, Samee Ullah Khan, Cheng-Zhong Xu, Thanasis Loukopoulos, Spyros Lalis
On minimizing the resource consumption of cloud applications using process migrations. J. Parallel Distributed Comput. 73 (12) (2013)
Ilias Rentifis, Nikos Tziritas, Petros Lampsas, Spyros Lalis, Thanasis Loukopoulos
Improving Application Availability in Wireless Sensor Networks with Energy-Harvesting Capability. PDCAT (2012)
Nikos Tziritas, Samee Ullah Khan, Cheng-Zhong Xu, Jue Hong
An Optimal Fully Distributed Algorithm to Minimize the Resource Consumption of Cloud Applications. ICPADS (2012)
Nikos Tziritas, Giorgis Georgakoudis, Spyros Lalis, Tomasz Paczesny, Jaroslaw Domaszewicz, Petros Lampsas, Thanasis Loukopoulos
Middleware Mechanisms for Agent Mobility in Wireless Sensor and Actuator Networks. S-CUBE (2012)
Nikos Tziritas, Samee Ullah Khan, Cheng-Zhong Xu, Jue Hong
An Optimal Fully Distributed Algorithm to Minimize the Resource Consumption of Cloud Applications CoRR (2012)
Nikos Tziritas, Petros Lampsas, Spyros Lalis, Thanasis Loukopoulos, Samee Ullah Khan, Cheng-Zhong Xu
Introducing Agent Evictions to Improve Application Placement in Wireless Distributed Systems. ICPP (2012)
Nikos Tziritas, Thanasis Loukopoulos, Spyros Lalis, Petros Lampsas
Algorithms for energy-driven agent placement in wireless embedded systems with memory constraints. Simul. Model. Pract. Theory 19 (6) (2011)
Nikos Tziritas, Thanasis Loukopoulos, Spyros Lalis, Petros Lampsas
GRAL: A Grouping Algorithm to Optimize Application Placement in Wireless Embedded Systems. IPDPS (2011)
Nikos Tziritas, Thanasis Loukopoulos, Spyros Lalis, Petros Lampsas
On Deploying Tree Structured Agent Applications in Networked Embedded Systems. Euro-Par (2) (2010)
Nikos Tziritas, Thanasis Loukopoulos, Spyros Lalis, Petros Lampsas
Agent placement in wireless embedded systems: Memory space and energy optimizations. IPDPS Workshops (2010)
Nikos Tziritas, Thanasis Loukopoulos, Petros Lampsas, Spyros Lalis
Using Multicast Transfers in the Replica Migration Problem: Formulation and Scheduling Heuristics. Euro-Par (2009)
Nikos Tziritas, Thanasis Loukopoulos, Petros Lampsas, Spyros Lalis
Formal Model and Scheduling Heuristics for the Replica Migration Problem. Euro-Par (2008)
Thanasis Loukopoulos, Nikos Tziritas, Petros Lampsas, Spyros Lalis
Implementing Replica Placements: Feasibility and Cost Minimization. IPDPS (2007)