Browsing by Subject "Information management"

Now showing items 1-20 of 39

    • Conference Object  

      ACCES: Offline accuracy estimation for fingerprint-based localization 

      Nikitin, A.; Laoudias, Christos; Chatzimilioudis, Georgios; Karras, P.; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2017)
      In this demonstration we present ACCES, a novel framework that enables quality assessment of arbitrary fingerprint maps and offline accuracy estimation for the task of fingerprint-based indoor localization. Our framework ...
    • Conference Object  

      The airplace indoor positioning platform for Android smartphones 

      Laoudias, Christos; Constantinou, George; Constantinides, Marios; Nicolaou, Silouanos; Zeinalipour-Yazdi, Constantinos D.; Panayiotou, Christos G. (2012)
      In this demonstration paper, we present an indoor positioning system developed for Android smartphones, coined Airplace. To infer the unknown user location we rely on ubiquitous WLANs and exploit Received Signal Strength ...
    • Conference Object  

      Anyplace: A Crowdsourced Indoor Information Service 

      Georgiou, K.; Constambeys, T.; Laoudias, Christos; Petrou, L.; Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2015)
      People do most of their activities, business, commerce, entertainment and socializing indoors. As all of these are increasingly aided by online services and indoor spaces are becoming bigger and more complex, there is a ...
    • Conference Object  

      Assessment of the risk of coronary heart event based on data mining 

      Karaolis, Minas A.; Moutiris, Joseph Antoniou; Pattichis, Constantinos S. (2008)
      Coronary heart disease (CHD) is a major cause of morbidity and mortality in the western world. Although significant progress has been made in the diagnosis and treatment of CHD, further investigation is still needed. The ...
    • Conference Object  

      Characterization of computational grid resources using low-level benchmarks 

      Tsouloupas, George; Dikaiakos, Marios D. (2006)
      An important factor that needs to be taken into account by end-users and systems (schedulers, resource brokers, policy brokers) when mapping applications to the Grid is the performance capacity of hardware resources attached ...
    • Conference Object  

      CLODA: A crowdsourced linked open data architecture 

      Larkou, G.; Metochi, J.; Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D. (2013)
      In this paper we present our Crowdsourced Linked Open Data Architecture (CLODA), a first attempt to combine crowdsourcing, localization and location-based services to generate, collect, validate and relate real-world, ...
    • Article  

      Context aware multiparty session support for adaptive multicasting in heterogeneous mobile networks 

      Antoniou, Josephina; Riede, C.; Pinto, F. C.; Pitsillides, Andreas (2009)
      The paper addresses the issue of achieving context-aware, adaptive multiparty sessions in a heterogeneous system by illustrating how to add elements of adaptivity and context-awareness to the session management functionality ...
    • Conference Object  

      Continuous all k-nearest-neighbor querying in smartphone networks 

      Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D.; Lee, W. -C; Dikaiakos, Marios D. (2012)
      Consider a centralized query operator that identifies to every smart phone user its k geographically nearest neighbors at all times, a query we coin Continuous All k-Nearest Neighbor (CAkNN). Such an operator could be ...
    • Conference Object  

      Crowdsourcing for mobile data management 

      Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D. (2013)
      Crowdsourcing refers to a distributed problemsolving model in which a crowd of undefined size is engaged in the task of solving a complex problem through an open call. This novel problem-solving model found its way into ...
    • Conference Object  

      Disclosure-free GPS trace search in smartphone networks 

      Zeinalipour-Yazdi, Constantinos D.; Laoudias, Christos; Andreou, Maria I.; Gunopulos, Dimitrios (2011)
      In this paper we present a powerful distributed framework for finding similar trajectories in a smart phone network, without disclosing the traces of participating users. Our framework, coined Smart Trace, exploits ...
    • Conference Object  

      Enhancing virtual reality systems with smart wearable devices 

      Alshaal, S. E.; Michael, S.; Pamporis, A.; Herodotou, H.; Samaras, George S.; Andreou, Panayiotis G. (Institute of Electrical and Electronics Engineers Inc., 2016)
      The proliferation of wearable and smartphone devices with embedded sensors has enabled researchers and engineers to study and understand user behavior at an extremely high fidelity, particularly for use in industries such ...
    • Conference Object  

      GridBench: A workbench for Grid benchmarking 

      Tsouloupas, George; Dikaiakos, Marios D. (2005)
      In this article we present the GridBench, an extensible tool for benchmarking and testing Grid resources. We give an overview of the GridBench services and tools that provide easy invocation of benchmarks and management ...
    • Conference Object  

      Human Mobility Computing and Privacy: Fad or Reality? 

      Lee, A. J.; Pelechrinis, K.; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2015)
      The advent of mobile computing and sensing technologies, in conjunction with omni-present and high-speed mobile networks, allow nowadays the capture of human mobility data at an extremely high fidelity. Modern mobile ...
    • Article  

      Improving content delivery by exploiting the utility of CDN servers 

      Pallis, George C. (2012)
      As more aspects of our work and life move online and the Internet expands beyond a communication medium to become a platform for business and society, Content Delivery Networks (CDNs) have recently gained momentum in the ...
    • Article  

      In-network data acquisition and replication in mobile sensor networks 

      Andreou, Panayiotis G.; Zeinalipour-Yazdi, Constantinos D.; Chrysanthis, Panos K.; Samaras, George S. (2011)
      This paper assumes a set of n mobile sensors that move in the Euclidean plane as a swarm. Our objectives are to explore a given geographic region by detecting and aggregating spatiooral events of interest and to store these ...
    • Conference Object  

      Indoor localization accuracy estimation from fingerprint data 

      Nikitin, A.; Laoudias, Christos; Chatzimilioudis, Georgios; Karras, P.; Zeinalipour-Yazdi, Constantinos D. (Institute of Electrical and Electronics Engineers Inc., 2017)
      The demand for indoor localization services has led to the development of techniques that create a Fingerprint Map (FM) of sensor signals (e.g., magnetic, Wi-Fi, bluetooth) at designated positions in an indoor space and ...
    • Article  

      Intelligent search in social communities of smartphone users 

      Konstantinidis, Andreas; Zeinalipour-Yazdi, Constantinos D.; Andreou, Panayiotis G.; Samaras, George S.; Chrysanthis, Panos K. (2013)
      Social communities of smartphone users have recently gained significant interest due to their wide social penetration. The applications in this domain, however, currently rely on centralized or cloud-like architectures for ...
    • Article  

      Internet-based Indoor Navigation Services 

      Zeinalipour-Yazdi, Constantinos D.; Laoudias, Christos; Georgiou, K.; Chatzimilioudis, Georgios (2017)
      The advances of smartphone technology in recent years is leading to the uptake of a new class of Internet-based Indoor Navigation (IIN) services, which might soon diminish the need of Satellite-based technologies in urban ...
    • 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 ...
    • Article  

      Managing big data experiments on smartphones 

      Larkou, G.; Mintzis, M.; Andreou, Panayiotis G.; Konstantinidis, Andreas; Zeinalipour-Yazdi, Constantinos D. (2016)
      The explosive number of smartphones with ever growing sensing and computing capabilities have brought a paradigm shift to many traditional domains of the computing field. Re-programming smartphones and instrumenting them ...