Browsing by Subject "Computer networks"

Now showing items 21-40 of 58

    • Article  

      Exploiting locality for scalable information retrieval in peer-to-peer networks 

      Zeinalipour-Yazdi, Constantinos D.; Kalogeraki, Vana; Gunopulos, Dimitrios (2005)
      An important problem in unstructured peer-to-peer (P2P) networks is the efficient content-based retrieval of documents shared by other peers. However, existing searching mechanisms are not scaling well because they are ...
    • Article  

      Fuzzy logic based congestion control in computer networks 

      Chrysostomou, Chrysostomos; Pitsillides, Andreas (2006)
      Network congestion control is a complex problem that requires robust, possibly intelligent, control methodologies to obtain satisfactory performance. Designing effective congestion control strategies for computer networks ...
    • Article  

      A graph-theoretic network security game 

      Mavronicolas, Marios; Lesta, Vicky Papadopoulou; Philippou, Anna; Spirakis, Paul G. (2005)
      Consider a network vulnerable to viral infection. The system security software can guarantee safety only to a limited part of the network. We model this practical network scenario as a non-cooperative multi-player game on ...
    • Article  

      Grid computing : Second European AcrossGrids Conference, AxGrids 2004, Nicosia, Cyprus, January 28-30, 2004 : revised papers 

      European Across, Grids Conference; Dikaiakos, Marios D. (2004)
    • Doctoral Thesis  Open Access

      Harnessing CPU electromagnetic emanations for power-delivery network characterization 

      Hadjilambrou, Zacharias A. (Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2020-01)
      Ο επαγωγικός θόρυβος τάσης είναι μια από τις σημαντικές αυξανόμενες ανησυχίες στους σύγχρονους επεξεργαστές. Η υπερβολική πτώση της τάσης μπορεί να προκαλέσει μη ορθή λειτουργία. Ενώ η υπερβολική αύξηση της τάσης αυξάνει ...
    • Conference Object  

      HelperCoreDB: Exploiting multicore technology to improve database performance 

      Papadopoulos, Kostas; Stavrou, Kyriakos; Trancoso, Pedro (2008)
      Due to limitations in the traditional microprocessor design, such as high complexity and power, all current commercial high-end processors contain multiple cores on the same chip (multicore). This trend is expected to ...
    • Conference Object  

      How many attackers can selfish defenders catch? 

      Mavronicolas, Marios; Monien, Burkhard; Lesta, Vicky Papadopoulou (2008)
      In a distributed system with attacks and defenses, an economic investment in defense mechanisms aims at increasing the degree of system protection against the attacks. We study such investments in the selfish setting, where ...
    • Conference Object  

      Hybrid CAC for MBMS-enabled 3G UMTS networks 

      Neophytou, Marios; Pitsillides, Andreas (2006)
      In this paper, a novel hybrid Connection Admission Control (CAC) scheme combining downlink transmission power and aggregate throughput in the case of dedicated and shared connection setup respectively, is presented ("DPTCAC: ...
    • Article  

      Hydrophilic, cationic large-core star polymers and polymer networks: Synthesis and physicochemical characterization 

      Kafouris, Demetris; Gradzielski, M.; Patrickios, Costas S. (2008)
      Group transfer polymerization was used to prepare hydrophilic, cationic large-core star polymers (LCSPs) and networks of 2-(dimethylamino)ethyl methacrylate (DMAEMA) and ethylene glycol dimethacrylate (EGDMA) in a two-step ...
    • Conference Object  

      Identifying failures in grids through monitoring and ranking 

      Zeinalipour-Yazdi, Constantinos D.; Neocleous, Kyriacos; Georgiou, Chryssis; Dikaiakos, Marios D. (2008)
      In this paper we present FailRank, a novel framework for integrating and ranking information sources that characterize failures in a grid system. After the failing sites have been ranked, these can be eliminated from the ...
    • Doctoral Thesis  Open Access

      Improving content delivery with OSN-awareness 

      Koilanioti, Eirini T. (Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2016-11)
      Τα Δίκτυα Παράδοσης Περιεχομένου (CDN) χρειάζεται συχνά να ανακαλέσουν περιεχόμενο απαιτητικό σε εύρος ζώνης για καταναλωτές πληθώρας εφαρμογών (ηλεκτρονικής μάθησης, υγείας, κοινωνικής δικτύωσης, έξυπνων πολέων κ.ά.). ...
    • Article  

      The increase of the instability of networks due to Quasi-Static link capacities 

      Koukopoulos, D.; Mavronicolas, Marios; Spirakis, Paul G. (2007)
      In this work, we study the impact of the dynamic changing of the network link capacities on the stability properties of packet-switched networks. Especially, we consider the Adversarial, Quasi-Static Queuing Theory model, ...
    • Doctoral Thesis  Open Access

      Information dissemination in vehicular ad hoc networks 

      Xeros, Andreas G. (Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2013-01)
      Τα μη δομημένα οδικά δίκτυα (VANETs) αξιοποιούν τις δυνατότητες της τεχνολογίας πληροφορικής και επικοινωνιών για τη δημιουργία ενός ασφαλέστερου και πιο αποδοτικού δικτύου μεταφορών. Πολλές από τις εφαρμογές των VANETs ...
    • Article  

      Insight and perspectives for Content Delivery Networks 

      Pallis, George C.; Vakali, Athena I. (2006)
      Content delivery over the Web has become an important element of improving web performance. Content delivery Networks (CDN) has been proposed to maximize bandwidth, improve accessibility, and maintain correctness through ...
    • Article  

      Integrating caching techniques on a content distribution network 

      Stamos, Kostas; Pallis, George C.; Vakali, Athena I. (2006)
      Web caching and replication tune capacity with performance and they have become essential components of the Web. In practice, caching and replication techniques have been applied in proxy servers and Content Distribution ...
    • Conference Object  

      A latency-based object placement approach in content distribution networks 

      Pallis, George C.; Vakali, Athena I.; Stamos, Kostas; Sidiropoulos, Antonis; Katsaros, Dimitrios S.; Manolopoulos, Yannis (2005)
      Content Distribution Networks (CDNs) are increasingly being used to disseminate data in today's Internet. The growing interest in CDNs is motivated by a common problem across disciplines: how does one reduce the load on ...
    • Conference Object  

      A local search mechanism for peer-to-peer networks 

      Kalogeraki, Vana; Gunopulos, Dimitrios; Zeinalipour-Yazdi, Constantinos D. (2002)
      One important problem in peer-to-peer (P2P) networks is searching and retrieving the correct information. However, existing searching mechanisms in pure peer-to-peer networks are inefficient due to the decentralized nature ...
    • Doctoral Thesis  Open Access

      MmWave heterogeneous cellular networks and applications : a stochastic geometry approach 

      Skouroumounis, Christodoulos A. (Πανεπιστήμιο Κύπρου, Πολυτεχνική Σχολή / University of Cyprus, Faculty of Engineering, 2019-12)
      Η ευρεία χρήση των κινητών συσκευών και η εμφάνιση νέων ασύρματων υπηρεσιών έχουν οδηγήσει σε μια εντυπωσιακή κλιμάκωση της ζήτησης της κυκλοφορίας δεδομένων, η οποία δημιουργεί εξαιρετικά τεράστιες προκλήσεις στα σημερινά ...
    • Article  

      Mobile agents for World Wide Web distributed database access 

      Papastavrou, Stavros; Samaras, George S.; Pitoura, Evaggelia 1967- (2000)
      The popularity of the Web as a universal access mechanism for network information has created the need for developing web-based DBMS client/server applications. However, the current commercial applet-based approaches for ...
    • Conference Object  

      Mobile commerce: Vision and challenges (location and its management) 

      Samaras, George S. (Institute of Electrical and Electronics Engineers Inc., 2002)
      Mobile computing is distributed computing that involves elements whose location changes in the course of computation. Elements may be software components such as mobile agents or moving objects-data or hardware such as ...