Browsing by Subject "Network architecture"

Now showing items 1-20 of 20

    • Article  

      Artificial neural network learning: A comparative review 

      Neocleous, Costas K.; Schizas, Christos N. (2002)
      Various neural learning procedures have been proposed by different researchers in order to adapt suitable controllable parameters of neural network architectures. These can be from simple Hebbian procedures to complicated ...
    • Article  

      Behavioral plasticity through the modulation of switch neurons 

      Vassiliades, Vassilis; Christodoulou, Chris C. (2016)
      A central question in artificial intelligence is how to design agents capable of switching between different behaviors in response to environmental changes. Taking inspiration from neuroscience, we address this problem by ...
    • Article  

      Computational predictions of the tensile properties of electrospun fibre meshes: Effect of fibre diameter and fibre orientation 

      Barocas, V. Η; Stylianopoulos, T.; Bashur, C. A.; Goldstein, A. S.; Guelcher, S. A. (2008)
      The mechanical properties of biomaterial scaffolds are crucial for their efficacy in tissue engineering and regenerative medicine. At the microscopic scale, the scaffold must be sufficiently rigid to support cell adhesion, ...
    • Article  

      Direct quadrature phase shift keying modulation using compact wideband six-port networks 

      Ibrahim, S. Z.; Abbosh, A. M.; Antoniades, Marcos A. (2012)
      In this study, the operation of a compact six-port network operating as a quadrature phase shift keying (QPSK) modulator with a wide operational bandwidth is presented. The modulation has been accomplished using two types ...
    • Article  

      Distributed Calculation of Edge-Disjoint Spanning Trees for Robustifying Distributed Algorithms against Man-in-the-Middle Attacks 

      Oliva, G.; Cioaba, S.; Hadjicostis, Christoforos N. (2017)
      In this paper we provide a distributed methodology to allow a network of agents, tasked to execute a distributed algorithm, to overcome Man-in-the-middle attacks that aim at steering the result of the algorithm towards ...
    • Conference Object  

      Distributed frequency control of inertia-less AC microgrids 

      Cady, S. T.; Hadjicostis, Christoforos N.; Domínguez-Garcia, A. D. (Institute of Electrical and Electronics Engineers Inc., 2015)
      In this paper, we introduce a generation control architecture for microgrids that ensures stable and synchronized operation at a specific frequency. We also propose a distributed implementation of this architecture that ...
    • Article  

      A Distributed Frequency Regulation Architecture for Islanded Inertialess AC Microgrids 

      Cady, S. T.; Zholbaryssov, M.; Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N. (2017)
      We address the problem of frequency regulation in islanded ac microgrids with no inertia, i.e., those consisting entirely of generators interfaced through power electronics. The control architecture we propose to achieve ...
    • Article  

      A distributed generation control architecture for islanded ac microgrids 

      Cady, S. T.; Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N. (2015)
      In this paper, we propose a distributed architecture for generation control in islanded ac microgrids with both synchronous generators and inverter-interfaced power supplies. Although they are smaller and have lower ratings, ...
    • Article  

      Dynamic reconfiguration in coordination languages 

      Papadopoulos, George Angelos; Arbab, Farhad (2000)
      A rather recent approach in programming parallel and distributed systems is that of coordination models and languages. Coordination programming enjoys a number of advantages such as the ability to express different software ...
    • Conference Object  

      Fault-tolerant discrete-time linear time-invariant filters 

      Hadjicostis, Christoforos N. (Institute of Electrical and Electronics Engineers Inc., 2000)
      Modular redundancy, the traditional approach to fault tolerance, is prohibitively expensive because of the overhead in replicating the hardware. In this paper we discuss alternative methods for obtaining fault-tolerant ...
    • Article  

      A new estimation scheme for the effective number of users in internet congestion control 

      Lestas, Marios; Pitsillides, Andreas; Ioannou, Petros A.; Hadjipollas, George (2011)
      Many congestion control protocols have been recently proposed in order to alleviate the problems encountered by TCP in high-speed networks and wireless links. Protocols utilizing an architecture that is in the same spirit ...
    • Article  

      Overview of fuzzy-RED in diff-serv networks 

      Rossides, Loukas; Chrysostomou, Chrysostomos; Pitsillides, Andreas; Sekercioglu, Y. Ahmet (2002)
      The rapid growth of the Internet and increased demand to use theInternet for time-sensitive voice and video applications necessitate the designand utilization of new Internet architectures with effective congestion ...
    • Article  

      Protein secondary structure prediction with bidirectional recurrent neural nets: Can weight updating for each residue enhance performance? 

      Agathocleous, Michalis; Christodoulou, Georgia; Promponas, Vasilis J.; Christodoulou, Chris C.; Vassiliades, Vassilis; Antoniou, Antonis (2010)
      Successful protein secondary structure prediction is an important step towards modelling protein 3D structure, with several practical applications. Even though in the last four decades several PSSP algorithms have been ...
    • Conference Object  

      Rayzit: An Anonymous and Dynamic Crowd Messaging Architecture 

      Costa, Constantinos; Anastasiou, Chrysovalantis; Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2015)
      The smartphone revolution has introduced a new era of social networks where users communicate over anonymous messaging platforms to exchange opinions, ideas and even carry out commerce. These platforms enable individuals ...
    • Conference Object  

      Scalability and efficiency of database queries on future many-core systems 

      Petrides, P.; Diavastos, Andreas; Christofi, Constantinos; Trancoso, Pedro (2013)
      Decision Support System (DSS) workloads are known to be one of the most time-consuming database workloads that process large data sets. Traditionally, DSS queries have been accelerated using large-scale multiprocessors. ...
    • Article  

      Security in the cache and forward architecture for the next generation Internet 

      Hadjichristofi, G. C.; Hadjicostis, Christoforos N.; Raychaudhuri, D. (2011)
      The future Internet architecture will be comprised predominately of wireless devices. It is evident at this stage that the TCP/IP protocol that was developed decades ago will not properly support the required network ...
    • Article  

      Semi-interpenetrating polymer networks with predefined architecture for metal ion fluorescence monitoring 

      Christodoulou, Kyproula; Leontidis, Epameinondas; Achilleos, Mariliz; Polydorou, Christiana S.; Krasia‐Christoforou, Theodora (2016)
      The development of new synthetic approaches for the preparation of efficient 3D luminescent chemosensors for transition metal ions receives considerable attention nowadays, owing to the key role of the latter as elements ...
    • Article  

      Semi-interpenetrating polymer networks with predefined architecture for metal ion fluorescence monitoring 

      Christodoulou, K.; Leontidis, E.; Achilleos, M.; Polydorou, C.; Krasia-Christoforou, T. (2016)
      The development of new synthetic approaches for the preparation of efficient 3D luminescent chemosensors for transition metal ions receives considerable attention nowadays, owing to the key role of the latter as elements ...
    • Article  

      Training bidirectional recurrent neural network architectures with the scaled conjugate gradient algorithm 

      Agathocleous, Michalis; Christodoulou, Chris C.; Promponas, Vasilis J.; Kountouris, P.; Vassiliades, Vassilis (2016)
      Predictions on sequential data, when both the upstream and downstream information is important, is a difficult and challenging task. The Bidirectional Recurrent Neural Network (BRNN) architecture has been designed to deal ...
    • Article  

      A two-stage distributed architecture for voltage control in power distribution systems 

      Robbins, B. A.; Hadjicostis, Christoforos N.; Domínguez-Garcia, A. D. (2013)
      In this paper, we propose an architecture for voltage regulation in distribution networks that relies on controlling reactive power injections provided by distributed energy resources (DERs). A local controller on each bus ...