In this paper, we focus on privacy leakages about Twitter usersand show that simply establishing follower and friend connectionsin the Twitter network might be enough to reveal sensitive in-formation about the political ...

In this paper, we focus on privacy leakages about Twitter users and show that simply establishing follower and friend connections in the Twitter network might be enough to reveal sensitive information about the political ...

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 ...

In this paper, we propose a new architecture for managing data in a Ubiquitous Health Monitoring System (UHMS). The purpose of this architecture is to enhance the privacy of patients and furthermore to decongest the Health ...

Internet-enabled television systems (SmartTVs) are a development that introduces these devices into the interconnected environment of the Internet of Things. We propose a privacy-preserving application for computing ...

Participatory sensing is a crowd-sourcing technique which relies both on active contribution of citizens and on their location and mobility patterns. As such, it is particularly vulnerable to privacy concerns, which may ...

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 ...

In this work, we define the Nearest Doctor Problem (NDP) for finding the closest doctor in case of an emergency and present a secure multi-party computation for solving it. The solution is based on a privacy-preserving ...

In this work, we consider ubiquitous health data generated from wearable sensors in a Ubiquitous Health Monitoring System (UHMS) and examine how these data can be used within privacy preserving distributed statistical ...

Internet-enabled television systems, often referred to as Smart TVs, are a new development in television and home entertainment technologies. In this work, we propose a new, privacy-preserving, approach for Television ...

Value at Risk (VaR) is increasingly popular as a management and regulatory tool. To further its acceptance it is necessary to assess its reliability under conditions likely to be encountered in financial markets. A logical ...

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

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 ...

The particular dissertation concerns the profile delineation of Primary and Secondary School Music Teachers in Greece, as well as the determination of their professional identity. The first part initially presents in a ...

This paper investigates the profitability of technical trading rules in the Athens Stock Exchange (ASE), utilizing the FTSE/ASE-20 index over the period 1995- 2008. We focus on a less developed and efficient stock market, ...

We examine the performance of various types of technical trading rules in the emerging Cyprus Stock Market (CSE). Furthermore, we examine the predictability of daily returns for the CSE with respect to the extent that the ...

The first recorded account of project management as a separate dedicated activity has been attributed to the United States defence forces. During the 1950s the development and production of the Polaris ballistic missile ...

Tourism today is characterised by an omnivorous production of goods and services. Destinations are in a struggle to present their characteristics (nature, history, culture, food) in an attractive way and to stimulate the ...

As stated on Dimopoulos et al (2014) property tax in Greece is levied since 1985 not on Market Values but on the “objective value” of the properties as it is defined by the Ministry of Economics. It forms a non-flexible ...

Expropriation is the most traditional type of political risk. However, there is no consistency in the protection against expropriation according to international jurisprudence. This paper analyses what constitutes expropriation ...