Stathes Hadjiefthymiades

Stathes Hadjiefthymiades received his B.Sc., M.Sc. and Ph.D. in Informatics and Telecommunications from the Department of Informatics & Telecommunications (DIT) of the University of Athens (UoA), Athens, Greece. He also received a joint engineering-economics M.Sc. degree from the National Technical University of Athens. In 1992 he joined the Greek consulting firm Advanced Services Group, Ltd., as an analyst/developer of telematic applications and systems. In 1995 he became a member of the Communication Networks Laboratory of UoA. From 2001 to 2002, he served as a visiting assistant professor at the University of Aegean, Department of Information and Communication Systems Engineering. In 2002 he joined the faculty of the Hellenic Open University (Department of Informatics), Patras, Greece, as an assistant professor. Since the beginning of 2004, he has been a member of the faculty of UoA, DIT where he is presently an assistant professor. He has participated in numerous projects realized in the context of EU programmes and national initiatives. His research interests are in the areas of mobile, pervasive computing, web systems engineering, and networked multimedia applications. He is the author of over 150 publications in these areas.

Publications

Internet of Things in E-Government: Applications and Challenges
Internet of Things in E-Government: Applications and Challenges
Panagiota Papadopoulou, Kostas Kolomvatsos, Stathes Hadjiefthymiades. © 2020. 20 pages.
E-government can greatly benefit by the use of IoT, enabling the creation of new innovative services or the transformation and enhancement of current ones, which are informed by...
Enhancing E-Government With Internet of Things
Enhancing E-Government With Internet of Things
Panagiota Papadopoulou, Kostas Kolomvatsos, Stathes Hadjiefthymiades. © 2019. 20 pages.
Internet of things (IoT) brings unprecedented changes to all contexts of our lives, as they can be informed by smart devices and real-time data. Among the various IoT application...
Creating, Debugging, and Testing Mobile Applications with the IPAC Application Creation Environment
Creating, Debugging, and Testing Mobile Applications with the IPAC Application Creation Environment
Kostas Kolomvatsos, George Valkanas, Petros Patelis, Stathes Hadjiefthymiades. © 2014. 24 pages.
An important challenge in software development is to have efficient tools for creating, debugging, and testing software components developed for specific business domains. This...
Creating, Debugging, and Testing Mobile Applications with the IPAC Application Creation Environment
Creating, Debugging, and Testing Mobile Applications with the IPAC Application Creation Environment
Kostas Kolomvatsos, George Valkanas, Petros Patelis, Stathes Hadjiefthymiades. © 2013. 24 pages.
An important challenge in software development is to have efficient tools for creating, debugging, and testing software components developed for specific business domains. This...
Intelligent Technologies and Techniques for Pervasive Computing
Intelligent Technologies and Techniques for Pervasive Computing
Kostas Kolomvatsos, Christos Anagnostopoulos, Stathes Hadjiefthymiades. © 2013. 351 pages.
Pervasive computing enables users to interact with information resources in their everyday lives. The development of computational technologies that can exist in ever smaller...
Swarm Intelligence in Autonomic Computing: The Particle Swarm Optimization Case
Swarm Intelligence in Autonomic Computing: The Particle Swarm Optimization Case
Christos Anagnostopoulos, Stathes Hadjiefthymiades. © 2012. 21 pages.
Autonomic computing has become increasingly popular during recent years. Many mobile autonomic and context-aware applications exhibit self-organization in dynamic environments...
On the Use of Fuzzy Logic in Electronic Marketplaces
On the Use of Fuzzy Logic in Electronic Marketplaces
Kostas Kolomvatsos, Stathes Hadjiefthymiades. © 2012. 24 pages.
Today, there is a large number of product providers in the Web. Electronic Marketplaces (EMs) enable entities to negotiate and trade products. Usually, intelligent agents assume...
Integrating Interactive TV Services and the Web through Semantics
Integrating Interactive TV Services and the Web through Semantics
Vassileios Tsetsos, Antonis Papadimitriou, Christos Anagnostopoulos, Stathes Hadjiefthymiades. © 2012. 18 pages.
Interactive TV has started to penetrate broadcasting markets, providing a new user experience through novel services to subscribers and new revenue opportunities for companies....
A Component-Based Software Architecture for Delivering Location Based Services
A Component-Based Software Architecture for Delivering Location Based Services
Ioannis Priggouris, Dimitris Spanoudakis, Manos Spanoudakis, Stathes Hadjiefthymiades. © 2010. 30 pages.
The combination of position fixing mechanisms with location-dependent, geographical information, can offer truly customized personal communication services through the mobile...
Time Constraints for Sellers in Electronic Markets
Time Constraints for Sellers in Electronic Markets
Kostas Kolomvatsos, Stathes Hadjiefthymiades. © 2010. 8 pages.
Electronic markets provide virtual places for negotiation over the exchange of products. In such places entities representing buyers and sellers can interact and agree upon a...
Semantic Web Services and Mobile Agents Integration for Efficient Mobile Services
Semantic Web Services and Mobile Agents Integration for Efficient Mobile Services
Vasileios Baousis, Vassilis Spiliopoulos, Elias Zavitsanos, Stathes Hadjiefthymiades, Lazaros Merakos. © 2010. 19 pages.
The requirement for ubiquitous service access in wireless environments presents a great challenge in light of well-known problems like high error rate and frequent...
Integrating Interactive TV Services and the Web through Semantics
Integrating Interactive TV Services and the Web through Semantics
Vassileios Tsetsos, Antonis Papadimitriou, Christos Anagnostopoulos, Stathes Hadjiefthymiades. © 2010. 18 pages.
Interactive TV has started to penetrate broadcasting markets, providing a new user experience through novel services to subscribers and new revenue opportunities for companies....
Sensor and Computing Infrastructure for Environmental Risks: The SCIER System
Sensor and Computing Infrastructure for Environmental Risks: The SCIER System
Odysseas Sekkas, Dimitrios V. Manatakis, Elias S. Manolakos, Stathes Hadjiefthymiades. © 2010. 17 pages.
The SCIER platform is an integrated system of networked sensors and distributed computing facilities, aiming to detect and monitor a hazard, predict its evolution and assist the...
Matching Relational Schemata to Semantic Web Ontologies
Matching Relational Schemata to Semantic Web Ontologies
Polyxeni Katsiouli, Petros Papapanagiotou, Vassileios Tsetsos, Christos Anagnostopoulos, Stathes Hadjiefthymiades. © 2009. 9 pages.
The Semantic Web (SW; Berners-Lee, Hendler, & Lassila, 2001) is already in its implementation phase and an indication of this is the intense research and development activity in...
Location-Based Network Resource Management
Location-Based Network Resource Management
Ioannis Priggouris, Evangelos Zervas, Stathes Hadjiefthymiades. © 2009. 24 pages.
The vision that wireless technology in the near future will provide mobile users with at least similar multimedia services as those available to the fixed hosts is quite...
Ontological Engineering in Pervasive Computing Environments
Ontological Engineering in Pervasive Computing Environments
Athanasios Tsounis, Christos Anagnostopoulos, Stathes Hadjiefthymiades, Izambo Karali. © 2009. 22 pages.
Pervasive computing is a broad and compelling research topic in computer science that focuses on the applications of technology to assist users in everyday life situations. It...
How Can We Trust Agents in Multi-Agent Environments? Techniques and Challenges
How Can We Trust Agents in Multi-Agent Environments? Techniques and Challenges
Kostas Kolomvatsos, Stathes Hadjiefthymiades. © 2009. 22 pages.
The field of Multi-agent systems (MAS) has been an active area for many years due to the importance that agents have to many disciplines of research in computer science. MAS are...
How Can We Trust Agents in Multi-Agent Environments? Techniques and Challenges
How Can We Trust Agents in Multi-Agent Environments? Techniques and Challenges
Kostas Kolomvatsos, Stathes Hadjiefthymiades. © 2009. 22 pages.
The field of Multi-agent systems (MAS) has been an active area for many years due to the importance that agents have to many disciplines of research in computer science. MAS are...
Semantic Web Services and Mobile Agents Integration for Efficient Mobile Services
Semantic Web Services and Mobile Agents Integration for Efficient Mobile Services
Vasileios Baousis, Vassili Spiliopoulos, Elias Zavitsanos, Stathes Hadjiefthymiades, Lazaros Merakos. © 2008. 19 pages.
The requirement for ubiquitous service access in wireless environments presents a great challenge in light of well-known problems like high error rate and frequent...
Open Middleware Architecture for the LBS Domain
Open Middleware Architecture for the LBS Domain
Ioannis Priggouris, Dimitris Spanoudakis, Manos Spanoudakis, Stathes Hadjiefthymiades. © 2008. 19 pages.
The combination of position fixing mechanisms with location-dependent, geographical information can offer truly customized personal communication services through the mobile...
Semantic Enrichment of Location-Based Services
Semantic Enrichment of Location-Based Services
Vassileios Tsetsos, Christos Anagnostopoulos, Stathes Hadjiefthymiades. © 2007. 7 pages.
In this article, we describe issues related to the development of intelligent and human-centered LBS for indoor environments. We focus on the navigation service. Navigation is...
Location-Based Network Resource Management
Location-Based Network Resource Management
Ioannis Priggouris, Evangelos Zervas, Stathes Hadjiefthymiades. © 2006. 26 pages.
The vision that wireless technology in the near future will provide mobile users with at least similar multimedia services as those available to the fixed hosts is quite...
Extensible Platform for Location-Based Services Deployment and Provisioning
Extensible Platform for Location-Based Services Deployment and Provisioning
Manos Spanoudakis, Angelos Batistakis, Ioannis Priggouris, Anastasios Ioannidis, Stathes Hadjiefthymiades, Lazaros Merakos. © 2005. 33 pages.
Location-based services can be considered the most rapidly expanding field of the mobile communications sector. The proliferation of mobile-wireless Internet, the constantly...