• Conference Object  

      On modelling cognitive styles of users in adaptive interactive systems using artificial neural networks efi papatheocharous1 efi.papatheocharous 

      Belk, Marios; Germanakos, Panagiotis; Samaras, George S. (2012)
      User modelling in interactive Web systems is an essential quality to optimally filter, personalise and adapt their content and functionality to serve the intrinsic needs of individual users. The mechanism for obtaining the ...
    • Article  

      On supporting security and privacy-preserving interaction through adaptive usable security 

      Belk, Marios; Fidas, Christos A.; Germanakos, Panagiotis; Samaras, George S. (2014)
      The purpose of this paper is to propose a preliminary framework for supporting usable security on the World Wide Web through adaptivity in user interface designs. In particular we elaborate the concept of "Adaptive Usable ...
    • Conference Object  

      An ontological cognitive user model for adapting generic web structures 

      Germanakos, Panagiotis; Belk, Marios; Tsianos, Nikos; Lekkas, Zacharias; Mourlas, Constantinos; Samaras, George S. (2010)
      Adaptation and Personalization systems can benefit with the incorporation of ontological knowledge, especially when it comes to modeling users. In this paper we present a cognitive approach to Web Personalization based on ...
    • Conference Object  

      PALLAS: A querying interface for pervasive computing using handheld devices 

      Polyviou, S.; Evripidou, Paraskevas; Samaras, George S. (2004)
      In this paper we describe PALLAS (PALm Logic-based Algebraic Search), a prototype architecture, design and implementation for a search interface on a portable digital assistant. PALLAS is part of the UbAgent, a middleware ...
    • Article  

      A peer-to-peer based infrastructure for context distribution in mobile and ubiquitous environments 

      Hu, X.; Ding, Y.; Paspallis, Nearchos; Papadopoulos, George Angelos; Bratskas, Pyrros; Barone, P.; Mamelli, Alessandro; Vanrompay, Y.; Berbers, Y. (2007)
      The increasing proliferation of mobile devices has raised the expectations for user-customized and environment-aware services. However, mobile context-aware systems inherently feature characteristics of distribution and ...
    • Conference Object  

      Performance evaluation of mobile IPv6 handover extensions in an IEEE 802.11b wireless network environment 

      Lai, J.; Sekercioglu, Y. Ahmet; Jordan, N.; Pitsillides, Andreas (2006)
      In order to support mobile users, the basic Internet protocols have been extended with protocols (e.g., Mobile IPv6) for intercepting and forwarding packets to a mobile and possibly roaming node. Seamless roaming requires ...
    • Conference Object  

      The PersonaCheck System for Personalizing M-Commerce Checkout Processes 

      Constantinides, Anthony G.; Belk, Marios; Germanakos, Panagiotis; Samaras, George S. (Institute of Electrical and Electronics Engineers Inc., 2015)
      This demonstration paper presents a Web-based adaptive interactive system for personalizing the checkout process of M-Commerce Web environments, coined Persona Check. In particular, the system personalizes the visual and ...
    • Conference Object  

      Personalized portals for the wireless and mobile user 

      Panayiotou, Christoforos; Samaras, George S. (2003)
      The Wireless environment requires new type of services and new ways for structuring the needed content. Personalization comes into aid via the creation of personalized portals that directly tones down factors that break ...
    • Article  

      Post cardiac surgery home-monitoring system 

      Kyriacou, Efthyvoulos C.; Chimonidou, Panayiota; Pattichis, Constantinos S.; Lambrinou, Ekaterini; Barberis, Vassilis I. I.; Georghiou, Georgios P. (2011)
      One of the major factors limiting but also causing the application of modern technology in medicine is the response time to patients, should they need specialized medical care. In this work we propose a solution that is ...
    • Conference Object  

      A post cardiac surgery home-monitoring system 

      Matheou, George; Kyriacou, Efthyvoulos C.; Chimonidou, Panayiota; Pattichis, Constantinos S.; Lambrinou, Ekaterini; Barberis, Vassilis I. I.; Georghiou, Georgios P. (2011)
      The aim of this work was to develop a system that will be used for remote monitoring of patients at home after a cardiac surgery so as to keep their rehabilitation period as smooth as possible and avoid unnecessary visits ...
    • Conference Object  

      Preserving quality in the development of mobile commerce services and applications 

      Andreou, Andreas S.; Panayidou, D.; Andreou, Panayiotis G.; Pitsillides, Andreas (2005)
      Mobile commerce is nowadays a continuously growing area, driving the need for advances in both the network characteristics and infrastructure, as well as in the available mobile devices used. The same need requires the ...
    • Article  

      The price of selfish routing 

      Mavronicolas, Marios; Spirakis, Paul G. (2007)
      We study the problem of routing traffic through a congested network. We focus on the simplest case of a network consisting of m parallel links. We assume a collection of n network users
    • Conference Object  

      RAN selection for converged networks supporting IMS signalling and MBMS service 

      Antoniou, Josephina; Stylianou, Marios; Pitsillides, Andreas (2007)
      Future Communication Networks are envisioned to be based upon a common, flexible and scalable convergence platform, where different access networks, different terminals and different services can coexist. The new user ...
    • Conference Object  

      Real-time web crawler detection 

      Balla, A.; Stassopoulou, Athena; Dikaiakos, Marios D. (2011)
      In this paper we present a methodology for detecting web crawlers in real time. We use decision trees to classify requests in real time, as originating from a crawler or human, while their session is ongoing. For this ...
    • Article  

      Realizing comprehensive user profile as the core element of adaptive and personalized communication environments and systems 

      Germanakos, Panagiotis; Tsianos, Nikos; Lekkas, Zacharias; Mourlas, Constantinos; Samaras, George S. (2009)
      Challenges today in the Web personalization and adaptation research area range from heterogeneous user needs and user environment issues such as current location and time to multi-channel delivery of applications concerning ...
    • Conference Object  

      Scalable Mockup Experiments on Smartphones Using Smart Lab 

      Larkou, G.; Mintzis, M.; Andreou, Panayiotis G.; Konstantinidis, Andreas; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2015)
      In this paper we present a comprehensive architecture to carry out experimental repeatability studies on clusters of smartphones. Our architecture is founded on Smart Lab1, our in-house architecture for managing real and ...
    • Conference Object  

      Security and usability in knowledge-based user authentication: A review 

      Katsini, Christina P.; Belk, Marios; Fidas, Christos A.; Avouris, Nikolaos M.; Samaras, George S. (Association for Computing Machinery, 2016)
      This paper presents a comprehensive review of state-of-the-art research works in knowledge-based user authentication, covering the security and usability aspects of the most prominent user authentication schemes
    • Article  

      The Smart Home meets the Web of Things 

      Kamilaris, Andreas; Pitsillides, Andreas; Trifa, V. (2011)
      In recent years, the merging of computing with physical things, enabled the transformation of everyday objects into information appliances. We propose to reuse the central principles of the modern Web architecture to fully ...
    • Conference Object  

      SmartTrace: Finding similar trajectories in smartphone networks without disclosing the traces 

      Costa, Constantinos; Laoudias, Christos; Zeinalipour-Yazdi, Constantinos D.; Gunopulos, Dimitrios (2011)
      In this demonstration paper, we present a powerful distributed framework for finding similar trajectories in a smartphone network, without disclosing the traces of participating users. Our framework, exploits opportunistic ...
    • Article  

      Structuring topologically aware overlay networks using domain names 

      Zeinalipour-Yazdi, Constantinos D.; Kalogeraki, Vana (2006)
      Overlay networks are application layer systems which facilitate users in performing distributed functions such as searches over the contents of other users. An important problem in such networks is that the connections ...