Browsing by Author "Votis, Konstantinos"
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Item Boosting Data Monetisation with DATAMITE(Springer Science and Business Media Deutschland GmbH, 2024) Aroca, Jordi Arjona; Osa, María José López; Barturen, Urtza Iturraspe; Siopidis, Vasileios; Votis, Konstantinos; Nikolakopoulos, Anastasios; Chondrogiannis, Efthymios; Plociennik, Marcin; Himanen, Joel; Marinakis, Achilleas; Nestorakis, Konstantinos; Maglogiannis, Ilias; Iliadis, Lazaros; Karydis, Ioannis; Papaleonidas, Antonios; Chochliouros, Ioannis; HPACompanies around the globe store large quantities of data they cannot monetise. Regarding internal monetisation, they lack tools to facilitate the governance and quality assessment of their data, resulting not really knowing what data they own or it being non reliable due to its poor quality. External monetisation is usually hindered by the unavailability of trustable mechanisms to perform this exchange or enabling the company to participate in ecosystems like EU data spaces or Gaia-X. DATAMITE is an open-source modular and multi-domain framework that focuses on monetisation through interoperability and data exchange. Its modules offer tools for enhancing data governance, quality and security, but also enabling data sharing to a collection of ecosystems like data spaces, Gaia-X, EOSC or AIoD through a plugin-based approach. It also includes a series of additional support tools to assist on data discovery, ingestion, harmonization or evaluate data fairness, among other.Item ELECTRON: An Architectural Framework for Securing the Smart Electrical Grid with Federated Detection, Dynamic Risk Assessment and Self-Healing(Association for Computing Machinery, 2023-08-29) Radoglou-Grammatikis, Panagiotis; Liatifis, Athanasios; Dalamagkas, Christos; Lekidis, Alexios; Voulgaridis, Konstantinos; Lagkas, Thomas; Fotos, Nikolaos; Menesidou, Sofia Anna; Krousarlis, Thomas; Alcazar, Pedro Ruzafa; Martinez, Juan Francisco; Skarmeta Gomez, Antonio Fernando; Martín, Alberto Molinuevo; Angulo, Inaki; Nieto, Jesus Villalobos; Koshutanski, Hristo; Rodriguez, Rodrigo Diaz; Siniosoglou, Ilias; Mavropoulos, Orestis; Kyranou, Konstantinos; Saoulidis, Theocharis; Adir, Allon; Masalha, Ramy; Jimenez, Pablo Gallegos; Bellini, Emanuele; Kolokotronis, Nicholas; Shiaeles, Stavros; Franquelo, Jose Garcia; Lalas, George; Zalonis, Andreas; Voulgaridis, Antonis; Bintoudi, Angelina; Votis, Konstantinos; Pampliega, David; Sarigiannidis, Panagiotis; SWT; DIGITAL ENERGYThe electrical grid has significantly evolved over the years, thus creating a smart paradigm, which is well known as the smart electrical grid. However, this evolution creates critical cybersecurity risks due to the vulnerable nature of the industrial systems and the involvement of new technologies. Therefore, in this paper, the ELECTRON architecture is presented as an integrated platform to detect, mitigate and prevent potential cyberthreats timely. ELECTRON combines both cybersecurity and energy defence mechanisms in a collaborative way. The key aspects of ELECTRON are (a) dynamic risk assessment, (b) asset certification, (c) federated intrusion detection and correlation, (d) Software Defined Networking (SDN) mitigation, (e) proactive islanding and (f) cybersecurity training and certification.Item A peer-to-peer verifiable and secure energy trading framework based on blockchain technology(Institute of Electrical and Electronics Engineers Inc., 2021-07-29) De Diego, Santiago; Seco, Inaki; Escalante, Marisa; Vakakis, Nikolaos; Alexandros, Schoinas; Drosou, Anastasis; Tzovaras, Dimitrios; Votis, Konstantinos; Thomas, Thomman; Colet, Alba; Paradell, Pol; CIBERSEC&DLTBlockchain technology is currently being adopted in several domains and applications, including the energy domain and specifically in smart grids. One of the principal applications of blockchain technology is peer-to-peer energy trading among stakeholders of smart grids, providing trusted transactions without the need of third parties. Also, e-auctions are rapidly growing as a mean of e-commerce that allows direct product bidding through the internet. One of the major issues of e-auctions is the reliance on a third-party to host the e-auction platform which not only induces extra cost and complexity of transactions, but also the third-party should be trusted by buyers and sellers, as it handles all the e-auction processes. In addition, trust may also be undermined by potential malicious sellers or buyers. This paper introduces a blockchain-based energy trading framework based on a sealed bid auction type to offer a safe, trusted and privacy preserving energy exchange mechanism between EPES stakeholders of an islanded part of the grid that constitute an energy community, developed in context of the SDN-microSENSE. Furthermore, this framework utilises blockchain solutions for monitoring the security status of smart grid devices in order to confront any transactions involving malicious parties or parties with compromised equipment.Item Promoting Obesity Prevention and Healthy Habits in Childhood: The OCARIoT Experience(2023) Bastida, Leire; Cea, Gloria; Moya, Ana; Gallego, Alba; Gaeta, Eugenio; Sillaurren, Sara; Barbosa, Paulo; Souto, Sabrina; Rodrigues, Eujessika; Torrego-Ellacuria, Macarena; Triantafyllidis, Andreas; Alexiadis, Anastasios; Votis, Konstantinos; Tzovaras, Dimitrios; Rocha, Cleilton; Alves, Lucas; Malo, Pedro; Mateus, Marcio; Ferreira, Fernando; Arredondo, Maria Teresa; ADV_INTER_PLATObjective: Long term behavioural disturbances and interventions in healthy habits (mainly eating and physical activity) are the primary cause of childhood obesity. Current approaches for obesity prevention based on health information extraction lack the integration of multi-modal datasets and the provision of a dedicated Decision Support System (DSS) for health behaviour assessment and coaching of children. Methods: Continuous co-creation process has been applied in the frame of the Design Thinking Methodology, involving children, educators and healthcare professional in the whole process. Such considerations were used to derive the user needs and the technical requirements needed for the conception of the Internet of Things (IoT) platform based on microservices. Results: To promote the adoption of healthy habits and the prevention of the obesity onset for children (9-12 years old), the proposed solution empowers children -including families and educators- in taking control of their health by collecting and following-up real-time information about nutrition, physical activity data coming from IoT devices, and interconnecting healthcare professionals to provide a personalised coaching solution. The validation has two phases involving +400 children (control/intervention group), on four schools in three countries: Spain, Greece and Brazil. The prevalence of obesity decreased in 75.5% from baseline levels in the intervention group. The proposed solution created a positive impression and satisfaction from the technology acceptance perspective. Conclusions: Main findings confirm that this ecosystem can assess behaviours of children, motivating and guiding them towards achieving personal goals. Clinical and Translational Impact Statement - This study presents Early Research on the adoption of a smart childhood obesity caring solution adopting a multidisciplinary approach; it involves researchers from biomedical engineering, medicine, computer science, ethics and education. The solution has the potential to decrease the obesity rates in children aiming to impact to get a better global health.