We focus on personal data generated by the sensors and through the everyday usage of smart devices and take advantage of these data to build a non-invasive contextual suggestion system for tourism. The system, which we ...

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 ...

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 ...

In this work, we define the Nearest Doctor Problem for finding the nearest doctor in case of an emergency and present a privacy-preserving protocol for solving it. The solution is based on cryptographic primitives and makes ...

This paper presents a privacy-preserving system for participatory sensing, which relies on cryptographic techniques and distributed computations in the cloud. Each individual user is represented by a personal software ...

We propose a method for search privacy on the Internet, focusing on enhancing plausible deniability against search engine query-logs. The method approximates the target search results, without submitting the intended query ...

Κατά τη Μέση Βυζαντινή Περίοδο (8 0 ς - 1 σος αι.), το ζήτημα της εμφάνισης αλλόδοξων εθνοτήτων στη βυζαντινή περιφέρεια δεν ήταν νέο. Η διαφορετική ωστόσο αντιμετώπιση, κατανόηση και αποδοχή όλων αυτών των λαών ...

βυζαντινός ναός της Αγίας Παρασκευής στη Γεροσκήπου αποτελεί αντικείμενο μελέτης και αναφοράς Ελλήνων και ξένων βυζαντινολόγων και ερευνητών. Το μνημείο βρίσκεται στο δρόμο προς την Πάφο, εντούτοις είναι αξιοσημείωτο ...

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 ...

Introduction: eHealth emerged as an interdisciplinary research area about 70 years ago. This study employs probabilistic techniques to semantically analyse scientific literature related to the field of eHealth in order to ...

A signifcant proportion of Internet of Tings (IoT) devices, which according to published reports will be more than 75 billion by 2025 [1], will soon surround users and will collect data that are likely to threaten users’ ...

Blockchain is a distributed, immutable ledger technology introduced as the enabling mechanism to support cryptocurrencies. Blockchain solutions are currently being proposed to address diverse problems in different domains. ...

Online gambling, unlike other offline addiction forms, provides unprecedented opportunities for monitoring users’ behaviour in real-time, along with the ability to adapt persuasive interactions and messages that would match ...

Biomedical research and clinical decision depend increasingly on scientific evidence realized by a number of au-thoritative databases, mostly public and continually enriched via peer scientific contributions. Given the ...

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 ...

The purpose of this study was to examine the variables of ethnic identity, collective self-esteem, person perception, individualism, collectivism, and prejudice in Caucasian (North and South), African-American, and ...

The current study aimed to identify potential psychosocial risk and protective factors contributing to eating disorders in adolescents, and observe any differences between genders and Body Mass Index (BMI) categories. A ...

Dear Reader, Both body image as a construct and eating disorders as diagnoses are complex and multidimensional. Therefore, their continuous research and in-depth assessment is a necessity in order to better understand ...

The current study aimed to examine possible differences among females in three age groups (adolescent, early and middle adulthood) on body-image-related variables, media influences and self-esteem. The relationships between ...

In the Internet of Things (IoT) ecosystem, the volume of data generated by devices in the user’s environment is continuallyincreasing and becoming of particular value. In such an environment the average user is bound to ...