Sofoklis Kyriazakos

ORCID: 0000-0002-8841-6558
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About
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Research Areas
  • Wireless Communication Networks Research
  • Context-Aware Activity Recognition Systems
  • IoT and Edge/Fog Computing
  • Technology Use by Older Adults
  • IPv6, Mobility, Handover, Networks, Security
  • Advanced Wireless Network Optimization
  • Advanced MIMO Systems Optimization
  • Mobile Health and mHealth Applications
  • Stroke Rehabilitation and Recovery
  • Telemedicine and Telehealth Implementation
  • Energy Efficient Wireless Sensor Networks
  • Digital Mental Health Interventions
  • Artificial Intelligence in Healthcare
  • Cardiac Health and Mental Health
  • IoT Networks and Protocols
  • Dementia and Cognitive Impairment Research
  • Advanced Wireless Communication Techniques
  • Indoor and Outdoor Localization Technologies
  • Wireless Networks and Protocols
  • Service-Oriented Architecture and Web Services
  • Multimedia Communication and Technology
  • Wireless Body Area Networks
  • ICT Impact and Policies
  • Cloud Computing and Resource Management
  • Time Series Analysis and Forecasting

Aarhus University
2017-2023

Regionshospitalet Herning
2017

Aalborg University
2006-2016

National Technical University of Athens
2000-2007

North China University of Technology
2007

TES Electronic Solutions (Germany)
2007

National and Kapodistrian University of Athens
2003-2005

RWTH Aachen University
2005

Background In the last few years, several studies have focused on describing and understanding how virtual coaches (ie, coaching program or smart device aiming to provide support through a variety of application contexts) could be key drivers for health promotion in home care settings. As there has been enormous technological progress field artificial intelligence data processing past decade, use gains an augmented attention considerations medical innovations. Objective This scoping review...

10.2196/12805 article EN cc-by Journal of Medical Internet Research 2019-07-27

This paper addresses the current technical challenge of an impedance mismatch between requirements smart connected object applications within sensing environment and characteristics today's cloud infrastructure. We investigate possibility to offload tasks, such as storage data signal processing edge network, thus decreasing latency associated with performing those tasks cloud. The research scenario is e-Health laboratory implementation where real-time performed by home PC, while extracted...

10.1109/acssc.2015.7421170 article EN 2014 48th Asilomar Conference on Signals, Systems and Computers 2015-11-01

The modern healthcare landscape is overwhelmed by data derived from heterogeneous IoT sources and Electronic Health Record (EHR) systems. Based on the advancements in science Machine Learning (ML), an improved ability to integrate process so-called primary secondary fosters provision of real-time personalized decisions. In that direction, innovative mechanism for processing integrating health-related introduced this article. It describes details its internal subcomponents workflows, together...

10.3390/s24061739 article EN cc-by Sensors 2024-03-07

<sec> <title>BACKGROUND</title> Unhealthy lifestyle behaviors have been identified as a major cause of numerous health issues with steady global increase. Addressing this challenge requires comprehensive behavioral changes to promote sustainable healthier adoption. However, despite the prevalent need, cost effective and successful health-related behavior change virtual coaching, remain scarce. </sec> <title>OBJECTIVE</title> This paper presents holistic framework for designing, modeling...

10.2196/preprints.73807 preprint EN 2025-03-12

Admission control plays a very important role in wireless systems, as it is one of the basic mechanisms for ensuring quality service offered to users. Based on available network resources, estimates impact adding or dropping new session request. In both 2G and 3G admission refers single network. As we are moving towards heterogeneous networks referred systems beyond 4G, will need deal with many admit sessions that most appropriate supply requested QoS. this article present fundamentals...

10.1109/mnet.2008.4519962 article EN IEEE Network 2008-05-01

The way one leads their life is considered an important factor in health. In this paper we propose a system to provide risk assessment based on behavior for the health insurance sector. To do so built platform collect real-world data that enumerate different aspects of behavior, and simulator augment actual with synthetic. Using data, classifiers predict variations quantities lifestyle person. We offer service professionals by manipulating classifier predictions long-term. also address...

10.3390/risks9030046 article EN cc-by Risks 2021-03-01

Cardiovascular diseases (CVDs) are the leading cause of mortality in Europe, with potentially more than 60 million deaths per year, an age-standardized rate morbidity-mortality higher men women, exceeding from cancer. Heart attacks and strokes account for four out every five CVD fatalities globally. After a patient overcomes acute cardiovascular event, they referred rehabilitation to help them restore most their normal cardiac functions. One effective way provide this activity regimen is via...

10.3390/ijerph20053937 article EN International Journal of Environmental Research and Public Health 2023-02-22

A modern way of life needs a coaching.Despite the proliferation ICT solutions for personalized health care, there is still no easy to provide older adults with integrated coaching services.In this paper we introduce concept Council Coaches -a radically new virtual based on multiple autonomous, embodied coaches, which form together personal council that fulfills in an way.In concept, takes open dialog clients co-construct selected number coaches their own plans go healthier lifestyle.Virtual...

10.5220/0006787702190226 preprint EN cc-by-nc-nd 2018-01-01

Field trials of subscriber locations in a cellular network are discussed. The vehicular position location applied is hybrid method based on pattern recognition and time arrival (TOA) measurements. performed by hidden Markov models (HMMs) trained with prediction data to model the strength received signals for particular areas. TOA gives first estimations where active mobile located which set HMMs be used estimation. To assess accuracy proposed method, calls have been from car, driving through...

10.1109/vetecf.1999.798435 article EN 2005-08-24

Independent living of senior citizens is one the main challenges linked to ageing population, due impact on: (1) life elderly people, (2) national health systems, (3) insurance companies, (4) relatives and (5) care-givers. Senior may suffer from a number diseases, including decline in cardiopulmonary conditions, weaker muscle functions declined neuromuscular control movements, which result higher risk fall vulnerability for cardiovascular pulmonary diseases. With respect cognitive functions,...

10.1109/smc.2014.6974251 article EN 2022 IEEE International Conference on Systems, Man, and Cybernetics (SMC) 2014-10-01

Home-based rehabilitation after an acute episode or following exacerbation of a chronic disease is often problematic with clear lack continuity care between hospital and home care. Secondary prevention essential element long-term where strategies oriented toward risk reduction, treatment adherence, optimization quality life need to be applied. Frail sometimes isolated, the patient fails adhere proposed post-discharge clinical pathway due appropriate clinical, emotional, informational...

10.3389/fdgth.2020.546562 article EN cc-by Frontiers in Digital Health 2020-10-05

Discovery of biomarkers is a continuous activity the research community in clinical domain that recently shifted its focus toward digital, non-traditional often use physiological, psychological, social, and environmental data to derive an intermediate biomarker. Such biomarkers, by triggering smart services, can be used trial framework eHealth or digital therapeutic services. In this work, we discuss APACHE for determining quality life (QoL) cervical cancer patients demonstrate how are...

10.3389/fdgth.2021.648190 article EN cc-by Frontiers in Digital Health 2021-09-06

Today's IoT deployments are highly complex, heterogeneous and constantly changing. This poses severe security challenges such as limited end-to-end support, lack of cross-platform cross-vertical interoperability well the services that can be readily applied by practitioners third party developers. Overall, these require scalable, decentralized intelligent mechanisms which addressed SecureIoT project. paper presents definition, implementation validation a SecureIoT-enabled socially assisted...

10.3390/s21206912 article EN cc-by Sensors 2021-10-18

Over the last few years wireless local area networking (WLAN) has become a very important technology that offers high-speed communication services to mobile users in indoor environments. WLAN some attractive characteristics such as high data rates, increased QoS capabilities, and low installation costs which made many professionals claim it will be main opponent of IMT-2000, despite enormous effort needed for specification implementation 3G systems. However, WLANs also present constraints...

10.1109/mwc.2005.1561940 article EN IEEE Wireless Communications 2005-12-01

Pervasive health technologies can increase the effectiveness of personal monitoring and training, but more user studies are necessary to understand interest for these technologies, how they should be designed implemented. In present study, we evaluated eWALL, a user-centered pervasive technology consisting platform that monitors users’ physical cognitive behavior, providing feedback motivation via an easy-to-use, touch-based interface. The eWALL was placed one month in home 48 subjects with...

10.3390/ijerph17217893 article EN International Journal of Environmental Research and Public Health 2020-10-28
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