• A communication-aware energy-efficient graph-coloring algorithm for VM placement in clouds 

      Tziritas N., Loukopoulos T., Khan S., Xu C.-Z., Zomaya A. (2018)
      The problem of virtual machine (VM) consolidation has received a lot of attention over the past years. Most of the proposed techniques tackling the VM consolidation problem focus on energy consumption ignoring the network ...
    • Coordination strategies for agent migrations in wireless sensor networks 

      Tziritas N., Loukopoulos T., Lalis S., Khan S.U., Xu C.-Z. (2016)
      Agent-based middleware platforms for wireless sensor networks (WSNs) have received a lot of attention during the last years, due to their great flexibility in re-programming, monitoring, handling, and optimizing the ...
    • Distributed Algorithms for the Operator Placement Problem 

      Tziritas N., Loukopoulos T., Khan S.U., Xu C.-Z. (2015)
      Operator placement plays a key role in reducing the aggregate network overhead within a wireless sensor network (WSN) to extend battery life and the longevity of the network. Consequently, optimal algorithms for the operator ...
    • A Probabilistic Batch Oriented Proactive Workflow Management 

      Oikonomou P., Kolomvatsos K., Anagnostopoulos C., Tziritas N., Theodoropoulos G. (2021)
      Workflow management is a widely studied research subject due to its criticality for the efficient execution of various processing activities towards concluding innovative applications. The ultimate goal is to eliminate the ...