Now showing items 401-420 of 1952

    • Article  

      A survey on secure multipath routing protocols in WSNs 

      Stavrou, Eliana; Pitsillides, Andreas (2010)
      Routing protocols in wireless sensor networks (WSN) have been substantially investigated by researches. Most state-of-the-art surveys have focused on reviewing the different routing schemes that have been proposed for WSN ...
    • Conference Object  

      DDM-CMP: Data-driven multithreading on a chip multiprocessor 

      Stavrou, Kyriakos; Evripidou, Paraskevas; Trancoso, Pedro (2005)
      High-end microprocessors achieve their performance as a result of adding more features and therefore increasing their complexity. In this paper we present DDM-CMP, a Chip-Multiprocessor using the Data-Driven Multithreading ...
    • Conference Object  

      Securing mobile healthcare systems based on information classification: DITIS case study 

      Stavrou, Eliana; Pitsillides, Andreas (2006)
      Healthcare applications require special attention regarding security issues since healthcare is associated with mission critical services that are connected with the well being of life. Security raises special considerations ...
    • Conference Object  

      WSN operability during persistent attack execution 

      Stavrou, Eliana; Pitsillides, Andreas (Institute of Electrical and Electronics Engineers Inc., 2016)
      Wireless Sensor Networks (WSNs) are utilized in a number of critical infrastructures, e.g. healthcare, disaster and relief. In sensitive environments, it is vital to maintain the operability of the network in an effort to ...
    • Conference Object  

      Vulnerability assessment of intrusion recovery countermeasures in wireless sensor networks 

      Stavrou, Eliana; Pitsillides, Andreas (2011)
      Wireless sensor networks (WSNs) have become a hot research topic in recent years and are considered to be one of the building blocks of pervasive computing. Many diverse, mission-critical applications are deployed, including ...
    • Conference Object  

      Recovering from the selective forwarding attack in WSNs - Enhancing the recovery benefits of blacklisting and rerouting using directional antennas 

      Stavrou, Eliana; Pitsillides, Andreas (Institute of Electrical and Electronics Engineers Inc., 2014)
      Wireless sensor networks (WSNs) face a number of security challenges that can compromise their operation. A typical security attack that can be launched by an adversary, in order to affect the network's communication, is ...
    • Conference Object  

      Situation aware intrusion recovery policy in WSNs 

      Stavrou, Eliana; Pitsillides, Andreas (Institute of Electrical and Electronics Engineers Inc., 2016)
      Wireless Sensor Networks (WSNs) have been gaining tremendous research attention the last few years as they support a broad range of applications in the context of the Internet of Things. WSN-driven applications greatly ...
    • Conference Object  

      Security evaluation methodology for intrusion recovery protocols in wireless sensor networks 

      Stavrou, Eliana; Pitsillides, Andreas (2012)
      Researchers have designed intrusion recovery protocols in Wireless Sensor Networks (WSN) with the aim of restoring compromised services and promoting a secure and reliable environment in WSNs. Currently, evaluation frameworks ...
    • Conference Object  

      Combating persistent adversaries in wireless sensor networks using directional antennas 

      Stavrou, Eliana; Pitsillides, Andreas (2011)
      Security is an important property in applications offering services in mission-critical areas, such as in healthcare, military, transportation, etc. Wireless sensor networks (WSN) support the mission of these applications ...
    • Article  

      A study of volatile organic compounds evolved in urban waste disposal bins 

      Statheropoulos, Miltiades K.; Agapiou, Agapios; Pallis, George C. (2005)
      Volatile organic compounds (VOCs) evolved in urban waste disposal bins in different situations were studied. Waste of various loads (full, empty, partially filled bins), remained uncollected in the containers for variable ...
    • Article  

      Digitization of cypriot folk dances 

      Stavrakis, E.; Aristidou, Andreas; Savva, Maria; Himona, S. L.; Chrysanthou, Yiorgos L. (2012)
      In this article an initiative to preserve the Cypriot folk dance heritage is reported. The project aims to create a publicly accessible digital archive of folk dances that does not only include video recordings, commonly ...
    • Conference Object  

      Toward energy-aware balancing of mobile graphics 

      Stavrakis, E.; Polychronis, M.; Pelekanos, Nectarios; Artusi, A.; Hadjichristodoulou, P.; Chrysanthou, Yiorgos L. (SPIE, 2015)
      In the area of computer graphics the design of hardware and software has primarily been driven by the need to achieve maximum performance. Energy efficiency was usually neglected, assuming that a stable always-on power ...
    • Article  

      Web robot detection: A probabilistic reasoning approach 

      Stassopoulou, Athena; Dikaiakos, Marios D. (2009)
      In this paper, we introduce a probabilistic modeling approach for addressing the problem of Web robot detection from Web-server access logs. More specifically, we construct a Bayesian network that classifies automatically ...
    • Article  

      A probabilistic reasoning approach for discovering web crawler sessions 

      Stassopoulou, Athena; Dikaiakos, Marios D. (2007)
      In this paper we introduce a probabilistic-reasoning approach to detect Web robots (crawlers) from human visitors of Web sites. Our approach employs a Naive Bayes network to classify the HTTP sessions of a Web-server access ...
    • Conference Object  

      Crawler detection: A Bayesian approach 

      Stassopoulou, Athena; Dikaiakos, Marios D. (2006)
      In this paper, we introduce a probabilistic modeling approach for addressing the problem of Web robot detection from Web-server access logs. More specifically, we construct a Bayesian network that classifies automatically ...
    • Article  

      CDNsim: A simulation tool for content distribution networks 

      Stamos, Kostas; Pallis, George C.; Vakali, Athena I.; Katsaros, Dimitrios S.; Sidiropoulos, Antonis; Manolopoulos, Yannis (2010)
      Content distribution networks (CDNs) have gained considerable attention in the past few years. Hence there is need for developing frameworks for carrying out CDN simulations. In this article we present a modeling and ...
    • Conference Object  

      Evaluating the utility of content delivery networks 

      Stamos, Kostas; Vakali, Athena I.; Pallis, George C.; Dikaiakos, Marios D. (2009)
      Content Delivery Networks (CDNs) balance costs and quality in services related to content delivery. This has urged many Web entrepreneurs to make contracts with CDNs. In the literature, a wide range of techniques has been ...
    • 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 ...
    • Article  

      Mobile agents for wireless computing: The convergence of wireless computational models with mobile-agent technologies 

      Spyrou, Christiana; Samaras, George S.; Pitoura, Evaggelia 1967-; Evripidou, Paraskevas (2004)
      Wireless mobile computing breaks the stationary barrier and allows users to compute and access information from anywhere and at anytime. However, this new freedom of movement does not come without new challenges. The mobile ...
    • Conference Object  

      The evolution of ROSE: An engineering object-oriented database system 

      Spooner, David L.; Hardwick, Martin; Hvannberg, Ebba; Downie, Blair; Loffredo, Dave; Mehta, Alok; Faulstich, J. Alyce; Sanderson, Donald; Harris, Richard; Abou-Ezzi, Ghassan; Gong, Jie; Young, Jeffrey A.; Rovira, Margarita; Samaras, George S. (Publ by IEEE, 1990)
      ROSE, an object-oriented database system for engineering applications, has recently been reengineered as part of the DARPA Initiative in Concurrent Engineering (DICE). The lessons learned from the first version of the ...