Browsing NUP Academic Publications - Ακαδημαϊκές Δημοσιεύσεις ΠΝΠ by Author "Efraimidis, Pavlos S."

Now showing items 21-26 of 26

  • Revealing the political affinity of online entities through their Twitter followers 

    Stamatelatos, Giorgos; Gyftopoulos, Sotirios; Drosatos, George; Efraimidis, Pavlos S. (Elsevier Ltd., 2020-03)
    In this work, we show that the structural features of the Twitter online social network can divulge valuable information about the political affinity of the participating nodes. More precisely, we show that Twitter followers ...

  • Towards Privacy by Design in Personal e-Health Systems 

    Drosatos, George; Efraimidis, Pavlos S.; Williams, Garrath; Kaldoudi, Eleni (SCITEPRESS - Science and Technology Publications, Lda, 2016)
    Personal e-health systems are the next generation of e-health applications and their goal is to assist patientsin managing their disease and to help both patients and healthy people maintain behaviours that ...

  • Towards privacy in personal data management 

    Efraimidis, Pavlos S.; Drosatos, Georgios; Nalbadis, Fotis; Tasidou, Aimilia (2009)
    Purpose – In order to enhance privacy protection during electronic transactions, the purpose of this paper is to propose, develop, and evaluate a personal data management framework called Polis that abides by the following ...

  • User-Centric Privacy-Preserving Statistical Analysis of Ubiquitous Health Monitoring Data 

    Drosatos, George; Efraimidis, Pavlos S. (ComSIS Consortium, 2014)
    In this paper, we propose a user-centric software architecture for managing Ubiquitous Health Monitoring Data (UHMD) generated from wearable sensors in a Ubiquitous Health Monitoring System (UHMS), and examine how these ...

  • Versatile Query Scrambling for Private Web Search 

    Arampatzis, Avi; Drosatos, George; Efraimidis, Pavlos S. (Springer Link, 2015-05-16)
    We consider the problem of privacy leaks suffered by Internet users when they perform web searches, and propose a framework to mitigate them. In brief, given a ‘sensitive’ search query, the objective of our work is to ...

  • A Versatile Tool for Privacy-Enhanced Web Search 

    Arampatzis, Avi; Drosatos, George; Efraimidis, Pavlos S. (European Conference on Information Retrieval, 2013)
    We consider the problem of privacy leaks suffered by Internet users when they perform web searches, and propose a framework to mitigate them. Our approach, which builds upon and improves recent work on search privacy, ...