• Conference Object  

      Exploiting context in location-based information systems 

      Mettouris, Christos; Papadopoulos, George Angelos (2010)
      The area of mobile location-based information systems enumerates many systems that enable their users to digitally annotate physical locations, providing in this way information to others about these locations, communicating ...
    • Conference Object  

      Identification of key locations based on online social network activity 

      Efstathiades, Hariton; Antoniades, Demetris; Pallis, George C.; Dikaiakos, Marios D. (Association for Computing Machinery, Inc, 2015)
      Ubiquitous Internet connectivity enables users to update their Online Social Network profile from any location and at any point in time. These, often geo-tagged, data can be used to provide valuable information to closely ...
    • 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  

      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  

      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 ...
    • Conference Object  

      Optical sensors for urban search and rescue operations 

      Mäyrä, A. P.; Agapiou, Agapios; Hildebrand, L.; Ojala, K. M.; Mikedi, Katerina; Statheropoulos, Miltiades K. (2011)
      The Second Generation Locator for Urban Search and Rescue Operations (SGL for USaR) is an EC-funded project solving critical problems following massive destruction and large scale structural collapses in urban locations. ...
    • Article  

      Privacy-Preserving Indoor Localization on Smartphones 

      Konstantinidis, Andreas; Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D.; Mpeis, P.; Pelekis, N.; Theodoridis, Y. (2015)
      Indoor Positioning Systems (IPS) have recently received considerable attention, mainly because GPS is unavailable in indoor spaces and consumes considerable energy. On the other hand, predominant Smartphone OS localization ...
    • Conference Object  

      Privacy-preserving indoor localization on smartphones 

      Konstantinidis, Andreas; Chatzimilioudis, Georgios; Zeinalipour-Yazdi, Constantinos D.; Mpeis, P.; Pelekis, N.; Theodoridis, Y. (Institute of Electrical and Electronics Engineers Inc., 2016)
      Predominant smartphone OS localization subsystems currently rely on server-side localization processes, allowing the service provider to know the location of a user at all times. In this paper, we propose an innovative ...
    • Article  

      A spatiotemporal precipitation generator based on a censored latent Gaussian field 

      Baxevani, Anastassia; Lennartsson, J. (2015)
      A daily stochastic spatiotemporal precipitation generator that yields precipitation realizations that are quantitatively consistent is described. The methodology relies on a latent Gaussian field that drives both the ...