Browsing Τμήμα Πληροφορικής / Department of Computer Science by Title

Conference Object

“I Recall this Picture”: Understanding Picture Password Selections based on Users’ Sociocultural Experiences

Constantinides, Argyris; Fidas, Christos; Belk, Marios; Pitsillides, Andreas (2019)

Graphical passwords leverage the picture superiority effect to enhance memorability, and reflect today's haptic user interaction realms. Image content related to users' past sociocultural experiences assists users with the ...

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ICGrid: Enabling intensive care medical research on the EGEE grid

Gjermundrød, H.; Dikaiakos, Marios D.; Zeinalipour-Yazdi, Constantinos D.; Panayi, G.; Kyprianou, T. (2007)

Healthcare Information Systems are nowadays among the world's largest, fastest-growing and most information intensive industries. Additionally, Intensive Care Units are widely considered as the most technologically advanced ...

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ICT systems and services for Ageing Well: Identification and assessment of an important set (package) of ICT services for active ageing and independent living

Christophorou, C.; Georgiadis, Dimosthenis; Andreou, Panayiotis G.; Kleanthous, Styliani; Cereghetti, D. M.; Meijers, J.; Christodoulou, Eleni; Samaras, George S. (Springer Verlag, 2016)

Currently, the main care model for supporting elderly people living alone at home is based on informal and formal caregivers assistance. Considering the demographic changes of older population, which increases rapidly, ...

Article

Identification of an individual’s frustration in the work environment through a multi-sensor computer mouse

Portugal, D.; Belk, Marios; Quintas, J.; Christodoulou, Eleni; Samaras, George S. (2016)

Older adults traditionally face major challenges at work when it comes to dealing with new technological tools. A sense of overwhelm and frustration can quickly arise under these circumstances. Continuous negative feelings ...

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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 ...

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Identifying clusters with attribute homogeneity and similar connectivity in information networks

Papadopoulos, Antonios I.; Pallis, George C.; Dikaiakos, Marios D. (2013)

With the rapid emergence of the internet world, a lot of information networks become available every day. In many cases, these information networks contain objects connected by multiple links and described by different ...

Article

Identifying context information in datasets

Kapitsaki, Georgia M.; Kalaitzidou, Giouliana; Mettouris, Christos; Achilleos, Achilleas P.; Papadopoulos, George Angelos (2015)

Datasets are used in various applications assisting in performing reasoning and grouping actions on available data (e.g., clustering, classification, recommendations). Such sources of information may contain aspects relevant ...

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Identifying context sources towards context-aware adapted web services

Kapitsaki, Georgia M. (2011)

Context-awareness refers to the ability of services and applications to proactively adapt their behavior to the characteristics of the execution environment, such as weather conditions, location, etc., namely context. Web ...

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Identifying Developers' Expertise in Social Coding Platforms

Constantinou, Eleni; Kapitsaki, Georgia M. (Institute of Electrical and Electronics Engineers Inc., 2016)

Social coding platforms provide a means for software developers to acquire hands-on development experience. Their source code contributions can be used to showcase their expertise and skills in specific areas of software ...

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Identifying failures in grids through monitoring and ranking

Zeinalipour-Yazdi, Constantinos D.; Neocleous, Kyriacos; Georgiou, Chryssis; Dikaiakos, Marios D. (2008)

In this paper we present FailRank, a novel framework for integrating and ranking information sources that characterize failures in a grid system. After the failing sites have been ranked, these can be eliminated from the ...

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IEEE ICDM 2010 Contest: TomTom Traffic prediction for intelligent GPS Navigation

Wojnarski, M.; Gora, P.; Szczuka, M.; Nguyen, H. S.; Swietlicka, J.; Zeinalipour-Yazdi, Constantinos D. (2010)

In this foreword, we summarize the IEEE ICDM 2010 Contest: "

Article

Ignoring irrelevant facts and operators in plan generation

Nebel, B.; Dimopoulos, Yannis; Koehler, J. (1997)

It is traditional wisdom that one should start from the goals when generating a plan in order to focus the plan generation process on potentially relevant actions. The graphplan system, however, which is the most efficient ...

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IHIP: Towards a user centric Individual Human Interaction Proof framework

Fidas, Christos A.; Hussmann, H.; Belk, Marios; Samaras, George S. (Association for Computing Machinery, 2015)

A Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA) is a widely used Human Interaction Proof mechanism to protect on-line services against automated software agents. Nowadays, there is a ...

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Image analysis system for automated detection of breast cancer nuclei

Tsapatsoulis, Nicolas; Schnorrenberg, Frank; Pattichis, Constantinos S.; Kollias, Stefanos (IEEE Comp Soc, 1997)

A study for breast cancer nuclei detection is presented in this paper. The proposed algorithm determines the centers of nuclei in biopsy images using block-based processing of the images followed by singular value decomposition ...

Article

Image-based crowd rendering

Tecchia, F.; Loscos, C.; Chrysanthou, Yiorgos L. (2002)

Rendering crowded scenes with thousands of different animated virtual people in real time is challenging. An image-based rendering approach for displaying multiple avatars is proposed. The system allows real-time rendering ...

Article

The impact of network structure on the stability of greedy protocols

Koukopoulos, D.; Mavronicolas, Marios; Nikoletseas, Sotiris E.; Spirakis, Paul G. (2003)

A packet-switching network is stable if the number of packets in the network remains bounded at all times. A very natural question that arises in the context of stability and instability properties of such networks is how ...

Article

The impact of network structure on the stability of greedy protocols

Koukopoulos, D.; Mavronicolas, Marios; Nikoletseas, Sotiris E.; Spirakis, Paul G. (2005)

Some examples of the impact network structure has on stability behavior of greedy protocols and networks were presented. An important problem was to study the impact of network structure parameters on other greedy protocols. ...

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The impact of randomization in smoothing networks

Mavronicolas, Marios; Sauerwald, T. (2008)

We revisit smoothing networks[3], which are made up of balancers and wires. Tokens arrive arbitrarily on w input wires and propagate asynchronously through the network

Article

The impact of randomization in smoothing networks

Mavronicolas, Marios; Sauerwald, T. (2010)

We revisit randomized smoothing networks (Herlihy and Tirthapura in J Parallel Distrib Comput 66(5):626-632, 2006), which are made up of balancers and wires. We assume that balancers are oriented independently and uniformly ...

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The impact of remote sensing on the everyday lives of mobile users in urban areas

Kamilaris, Andreas; Pitsillides, Andreas (IEEE Computer Society, 2014)

Increasing urbanism creates serious ambient problems that downgrade the quality of life of citizens. Environmental awareness may help people to take more informed decisions in their everyday lives, ensuring their health ...