Theofanis Orphanoudakis

79 papers A 2B 2C 10Misc 1Journal 34Unranked 30

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Delphi-Based Expert Evaluation of the XR2Learn Hybrid Instructional Design Framework for XR Education. Comput. Christoforos Karachristos, Theodora Kouvara, Vasilis Zafeiropoulos, Theofanis Orphanoudakis, Giorgos Anastasakis, Alessandra Antonaci, Ioannis Chatzigiannakis, Maria Paola Conte, Angelica Marsico, Sindi Devole, Silvia Giordano, Matteo Besenzoni
2025	—	`conf`	Evaluating the Efficiency of ARM Cortex-M85 Architectural Extensions on Facial Recognition Machine Learning Workloads. DSP Anastasios Fanariotis, Theofanis Orphanoudakis, Vassilis E. Fotopoulos
2025	J	`jnl`	Evaluating the Energy Efficiency of NPU-Accelerated Machine Learning Inference on Embedded Microcontrollers. CoRR Anastasios Fanariotis, Theofanis Orphanoudakis, Vasilis Fotopoulos
2025	—	`conf`	Integration of AIS Data for Efficient Drone Navigation in Maritime Real-Time Ship Inspection Missions. SII Theodoros Karachalios, Panagiotis Moschos, Anastasios Fanariotis, Theofanis Orphanoudakis, Helen-Catherine Leligou
2025	J	`jnl`	MORA: A Multicriteria Optimal Resource Allocation and Decision Support Toolkit for Wildfire Management. Algorithms Theofanis Orphanoudakis, Christos Betzelos, Helen-Catherine Leligou
2024	C	`conf`	Expanding the 'A' in STEAM: Integrating Poetry and AI for Educational Evolution. EDUCON Theodora Kouvara, Vassilis E. Fotopoulos, Christoforos Karachristos, Theofanis Orphanoudakis
2024	C	`conf`	From Classroom to Sky: The Drones4STEM Initiative in Secondary Education. EDUCON Theodoros Karachalios, Christoforos Karachristos, Theodora Kouvara, Anastasios Fanariotis, Vassilis E. Fotopoulos, Theofanis Orphanoudakis
2024	J	`jnl`	Maritime Emission Monitoring: Development and Testing of a UAV-Based Real-Time Wind Sensing Mission Planner Module. Sensors Theodoros Karachalios, Panagiotis Moschos, Theofanis Orphanoudakis
2024	J	`jnl`	Reducing the Power Consumption of Edge Devices Supporting Ambient Intelligence Applications. Inf. Anastasios Fanariotis, Theofanis Orphanoudakis, Vassilis E. Fotopoulos
2024	J	`jnl`	The V-Lab VR Educational Application Framework. CoRR Vasilis Zafeiropoulos, George Anastassakis, Theofanis Orphanoudakis, Dimitris Kalles, Anastasios Fanariotis, Vassilis E. Fotopoulos
2024	J	`jnl`	The XR2Learn Project Approach to Empowering Immersive Learning and Training Leveraging European XR Industry Technologies. ERCIM News Ioannis Chatzigiannakis, Silvia Giordano, Theofanis Orphanoudakis
2023	—	`conf`	Evaluation of Contemporary UAV-Based Measurement Techniques for Gas Emissions Monitoring. PCI Theodoros Karachalios, Panagiotis Moschos, Anastasios Fanariotis, Theofanis Orphanoudakis
2023	B	`conf`	MobiSpaces: An Architecture for Energy-Efficient Data Spaces for Mobility Data. IEEE Big Data Christos Doulkeridis, Georgios M. Santipantakis, Nikolaos Koutroumanis, George Makridis, Vasilis Koukos, George S. Theodoropoulos, Yannis Theodoridis, Dimosthenis Kyriazis, Pavlos Kranas, Diego Burgos, Ricardo Jiménez-Peris, Mariana M. G. Duarte, Mahmoud Attia Sakr, Esteban Zimányi, Anita Graser, Clemens Heistracher, Kristian Torp, Ioannis Chrysakis, Theofanis Orphanoudakis, Evgenia Kapassa, Marios Touloupou, Jürgen Neises, Petros Petrou, Sophia Karagiorgou, Rosario Catelli, Domenico Messina, Marcelo Corrales Compagnucci, Matteo Falsetta
2023	J	`jnl`	Power Efficient Machine Learning Models Deployment on Edge IoT Devices. Sensors Anastasios Fanariotis, Theofanis Orphanoudakis, Konstantinos Kotrotsios, Vassilis E. Fotopoulos, Georgios Keramidas, Panagiotis Karkazis
2023	—	`conf`	The V-Lab VR Educational Application Framework: A Beacon Application of the XR2Learn Project. MobileHCI (Companion) Vasilis Zafeiropoulos, George Anastassakis, Theofanis Orphanoudakis, Dimitris Kalles, Anastasios Fanariotis, Vassilis E. Fotopoulos
2023	C	`conf`	Why Re-Focus on IoT in Education? Evidence of the PARADIGM Project. FIE Theodora Kouvara, Anastasios Fanariotis, Vasilios Fotopoulos, Christoforos Karachristos, Theofanis Orphanoudakis
2022	J	`jnl`	Design Space Exploration of a Multi-Model AI-Based Indoor Localization System. Sensors Konstantinos Kotrotsios, Anastasios Fanariotis, Helen-Catherine Leligou, Theofanis Orphanoudakis
2022	C	`conf`	Optimizing UAV location awareness telemetry data for Low Power Wide Area Network. DSD Theodoros Karachalios, Christos Xouris, Theofanis Orphanoudakis
2022	C	`conf`	Virtual Museum Tours for Schools: Teachers' Experiences and Expectations. EDUCON Maria Aristeidou, Theodora Kouvara, Christoforos Karachristos, Natalia D. Spyropoulou, Ana Benavides-Lahnstein, Bojana Vulicevic, Alexis Lacapelle, Theofanis Orphanoudakis, Zoe Batsi
2021	—	`conf`	Accurate Gridless Indoor Localization Based on Multiple Bluetooth Beacons and Machine Learning. ICARA Konstantinos Kotrotsios, Theofanis Orphanoudakis
2021	J	`jnl`	User Experience Evaluation: A Validation Study of a Tool-based Approach for Automatic Stress Detection Using Physiological Signals. Int. J. Hum. Comput. Interact. Alexandros Liapis, Christos Katsanos, Nikos Karousos, Michalis Xenos, Theofanis Orphanoudakis
2020	—	`conf`	Stress Heatmaps: A Fuzzy-Based Approach that Uses Physiological Signals. HCI (22) Alexandros Liapis, Christos Katsanos, Nikos Karousos, Dimitris Sotiropoulos, Michalis Xenos, Theofanis Orphanoudakis
2019	J	`jnl`	An embedded framework enabling access of elderly and disabled persons to IP-based emergency communications. Microprocess. Microsystems Anastasios Fanariotis, Foteini Andriopoulou, Theofanis Orphanoudakis, Ilias Politis
2019	—	`conf`	Bluetooth Beacon Based Accurate Indoor Positioning Using Machine Learning. SEEDA-CECNSM Konstantinos Kotrotsios, Theofanis Orphanoudakis
2019	C	`conf`	DSD-i1: A Mixed Functionality Development Board Geared Towards Digital Systems Design Education. DSD Anastasios Fanariotis, Theofanis Orphanoudakis, Vasilios Fotopoulos, Paris Kitsos
2019	—	`conf`	Effect of Personality Traits on UX Evaluation Metrics: A Study on Usability Issues, Valence-Arousal and Skin Conductance. CHI Extended Abstracts Alexandros Liapis, Christos Katsanos, Michalis Xenos, Theofanis Orphanoudakis
2019	J	`jnl`	Effect of Personality Traits on UX Evaluation Metrics: A Study on Usability Issues, Valence-Arousal and Skin Conductance. CoRR Alexandros Liapis, Christos Katsanos, Michalis Xenos, Theofanis Orphanoudakis
2019	—	`conf`	Exploiting IoT and Big-Data for Building Multiservice Capable Intelligent Transportation Systems. SEEDA-CECNSM Theofanis Orphanoudakis, Anastasios Fanariotis, Ilias Politis, Theodoros Karachalios, Konstantinos P. Demestichas, Stavros Xynogalas, Ioannis V. Loumiotis, Efstathios D. Sykas
2019	—	`conf`	UDSP+: stress detection based on user-reported emotional ratings and wearable skin conductance sensor. UbiComp/ISWC Adjunct Alexandros Liapis, Christos Katsanos, Nikos Karousos, Michalis Xenos, Theofanis Orphanoudakis
2018	C	`conf`	SEEK: SIP-Based Emergency Embedded Framework Supports Elderly and Disabled to Perform Emergency Calls. DSD Foteini Andriopoulou, Anastasios Fanariotis, Theofanis Orphanoudakis
2017	C	`conf`	Efficient IoT data aggregation for connected health applications. ISCC Konstantinos Karamitsios, Theofanis Orphanoudakis
2017	B	`conf`	IoTA: IoT automated SIP-based emergency call triggering system for general eHealth purposes. WiMob Foteini Andriopoulou, Theofanis Orphanoudakis, Tasos Dagiuklas
2016	—	`conf`	Evaluation of IoT-based Distributed Health Management Systems. PCI Konstantinos Karamitsios, Theofanis Orphanoudakis, Tasos Dagiuklas
2016	J	`jnl`	Providing entertainment app lications in VANET environments. IEEE Wirel. Commun. Lambros Sarakis, Theofanis Orphanoudakis, Helen-Catherine Leligou, Stamatis Voliotis, Artemis C. Voulkidis
2016	J	`jnl`	Switchless Elastic Rate Node (SERANO) Architecture: A Universal Node for Optical Grooming and Adaptive Networking. JOCN Evangelos A. Kosmatos, Theofanis Orphanoudakis, Chris Matrakidis, Alexandros A. Stavdas, Andrew Lord
2015	—	`conf`	Dynamic resource allocation in elastic optical networks. ICTON Christina Tanya Politi, Theofanis Orphanoudakis, Evangelos A. Kosmatos, Helen C. Leligou
2015	—	`conf`	Fiber Access network architecture featuring distributed processing and function virtualization. BlackSeaCom Theofanis Orphanoudakis, Evangelos A. Kosmatos, Chris Matrakidis, Alexandros A. Stavdas
2015	—	`conf`	IDEALIST data plane solutions for elastic optical networks. EuCNC Patricia Layec, Annachiara Dupas, Markus Nölle, Johannes Karl Fischer, Colja Schubert, Josep M. Fabrega, Michela Svaluto Moreolo, Nicola Sambo, Gianluca Meloni, Francesco Fresi, Antonio Napoli, Danish Rafique, Marc Bohn, Antonio D'Errico, Talha Rahman, Emilio Hugues-Salas, Yan Yan, Shuangyi Yan, Georgios Zervas, Dimitra Simeonidou, Alexandros A. Stavdas, Chris Matrakidis, Theofanis Orphanoudakis
2015	—	`conf`	Low-power/cost intra-datacentre architecture exploiting transmission and multiplexing in the interconnection fabric. ECOC Chris Matrakidis, Theofanis Orphanoudakis, Alexandros A. Stavdas, Romain Brenot, H.-G. Bach, Patrick Runge, Xin Yin
2015	J	`jnl`	Next generation optical nodes: The vision of the European research project IDEALIST. IEEE Commun. Mag. Emilio Hugues-Salas, Georgios Zervas, Dimitra Simeonidou, Evangelos A. Kosmatos, Theofanis Orphanoudakis, Alexandros A. Stavdas, Marc Bohn, Antonio Napoli, Talha Rahman, Filippo Cugini, Nicola Sambo, Silvano Frigerio, Antonio D'Errico, Annachiara Pagano, Emilio Riccardi, Víctor López, Juan Pedro Fernández-Palacios Gimenez
2015	—	`conf`	Remote FPGA laboratory course development based on an open multimodal laboratory facility. Panhellenic Conference on Informatics Vassilis E. Fotopoulos, Anastasios Fanariotis, Theofanis Orphanoudakis, Athanassios N. Skodras
2014	J	`jnl`	An 802.11p Compliant System Prototype Supporting Road Safety and Traffic Management Applications. Int. J. Wirel. Networks Broadband Technol. Helen-Catherine Leligou, Periklis Chatzimisios, Lambros Sarakis, Theofanis Orphanoudakis, Panagiotis Karkazis, Theodore B. Zahariadis
2014	—	`conf`	Hybrid resource reservation scheme for transparent integration of access and core optical transport networks. ICTON Theofanis Orphanoudakis, Evangelos A. Kosmatos, Chris Matrakidis, Alexandros A. Stavdas, Helen-Catherine Leligou
2014	—	`conf`	Network optimization exploiting traffic grooming techniques under fixed and elastic spectrum allocation. ECOC Chris Matrakidis, Theofanis Orphanoudakis, Alexandros A. Stavdas, Andrew Lord
2014	—	`conf`	Next generation optical network architecture featuring distributed aggregation, network processing and information routing. EuCNC Theofanis Orphanoudakis, Chris Matrakidis, Alexandros A. Stavdas
2014	—	`conf`	Switchless elastic rate node (SERANO) architecture for flexgrid and elastic rate networks. ECOC Evangelos A. Kosmatos, Theofanis Orphanoudakis, Chris Matrakidis, Alexandros A. Stavdas, Andrew Lord
2014	A	`conf`	Unified representation of monitoring information across federated cloud infrastructures. ITC Yahya Al-Hazmi, José González, Pablo Rodriguez-Archilla, Federico Alvarez, Theofanis Orphanoudakis, Panagiotis Karkazis, Thomas Magedanz
2013	J	`jnl`	A Node Clustering Algorithm for the CANON Architecture. IEEE Commun. Lett. Andreas Drakos, Chris Matrakidis, Theofanis Orphanoudakis, Alexandros A. Stavdas
2013	J	`jnl`	Exploiting PONs for mobile backhaul. IEEE Commun. Mag. Theofanis Orphanoudakis, Evangelos A. Kosmatos, John D. Angelopoulos, Alexandros A. Stavdas
2012	—	`conf`	Adding mobile base station support to PONs. Future Network & Mobile Summit Evangelos A. Kosmatos, Theofanis Orphanoudakis, John D. Angelopoulos, Alexandros A. Stavdas
2012	—	`conf`	Converged access network infrastructure based on Virtual PONs. TEMU Theofanis Orphanoudakis, Chris Matrakidis, Christina Tanya Politi, Alexandros A. Stavdas, Helen-Catherine Leligou
2012	—	`conf`	Geographical routing in wireless sensor networks. TEMU Panagiotis Karkazis, Helen-Catherine Leligou, Theofanis Orphanoudakis, Theodore B. Zahariadis
2012	—	`conf`	Impact of node clustering on network cost and resource utilization. ONDM Theofanis Orphanoudakis, Andreas Drakos, Alexandros A. Stavdas
2010	J	`jnl`	Design and implementation of high-speed buffered crossbars with efficient load balancing for multi-core SoCs. Microprocess. Microsystems George Kornaros, Theofanis Orphanoudakis
2010	J	`jnl`	Evaluation of optical core networks based on the CANON architecture. Photonic Netw. Commun. Andreas Drakos, Theofanis Orphanoudakis, Christina Tanya Politi, Alexandros A. Stavdas, Andrew Lord
2010	—	`conf`	Statistical Traffic Multiplexing with Service Guarantees over Optical Core Networks. DCNET/OPTICS Andreas Drakos, Theofanis Orphanoudakis, Christina Tanya Politi, Alexandros A. Stavdas
2009	J	`jnl`	Dynamic resource allocation with service guarantees over large scale optical networks. IEEE Commun. Lett. Theofanis Orphanoudakis, Andreas Drakos, Helen-Catherine Leligou, Alexandros A. Stavdas, Anthony C. Boucouvalas
2009	J	`jnl`	Future Internet Infrastructure Based on the Transparent Integration of Access and Core Optical Transport Networks. JOCN Theofanis Orphanoudakis, Helen C. Leligou, Evangelos A. Kosmatos, Alexandros A. Stavdas
2009	J	`jnl`	Performance evaluation of GPON vs EPON for multi-service access. Int. J. Commun. Syst. Theofanis Orphanoudakis, Helen-Catherine Leligou, Evangelos A. Kosmatos, John D. Angelopoulos
2008	J	`jnl`	Dynamic CANON: a scalable multidomain core network. IEEE Commun. Mag. Alexandros A. Stavdas, Theofanis Orphanoudakis, Helen-Catherine Leligou, Konstantinos Kanonakis, Chris Matrakidis, Andreas Drakos, John D. Angelopoulos, Andrew Lord
2008	J	`jnl`	Optical Communications Reservations inside clusters of all-optical core nodes achieve distributed burst aggregation and switching improving efficiency and loss. Eur. Trans. Telecommun. Alexandros A. Stavdas, Konstantinos Kanonakis, G. Koukouvakis, Helen-Catherine Leligou, Theofanis Orphanoudakis, John D. Angelopoulos
2007	—	`conf`	An Efficient Optical Switch Architecture with Controlled Latency for GRID Networks. ICNS Theofanis Orphanoudakis, Andreas Drakos, Chris Matrakidis, Christina Tanya Politi, Alexandros A. Stavdas
2007	C	`conf`	An Embedded Networking SoC for purely Ethernet MANs/WANs. ISCC Theofanis Orphanoudakis, George Kornaros, Ioannis Mavroidis, Aristides Nikologiannis, Ioannis Papaefstathiou
2007	J	`jnl`	Design and performance evaluation of a Programmable Packet Processing Engine (PPE) suitable for high-speed network processors units. Microprocess. Microsystems Kyriakos Vlachos, Theofanis Orphanoudakis, Ioannis Papaefstathiou, Nikos A. Nikolaou, Dionisios N. Pnevmatikatos, George E. Konstantoulakis, Jorge-A. Sanchez-Papaspiliou
2007	J	`jnl`	Queue Management in Network Processors CoRR Ioannis Papaefstathiou, Theofanis Orphanoudakis, George Kornaros, Christopher Kachris, Ioannis Mavroidis, Aristides Nikologiannis
2006	J	`jnl`	Efficient medium arbitration of FSAN-compliant GPONs. Int. J. Commun. Syst. Helen-Catherine Leligou, Charalambos Linardakis, Konstantinos Kanonakis, John D. Angelopoulos, Theofanis Orphanoudakis
2006	J	`jnl`	Optical Communications Efficient burst aggregation for QoS-aware slotted OBS systems. Eur. Trans. Telecommun. Helen-Catherine Leligou, Konstantinos Kanonakis, John D. Angelopoulos, Ioannis E. Pountourakis, Theofanis Orphanoudakis
2005	J	`jnl`	Leaky-bucket shaper design based on time interval grouping. IEEE Commun. Lett. Theofanis Orphanoudakis, Christos N. Charopoulos, Helen-Catherine Leligou
2005	A	`conf`	Queue Management in Network Processors. DATE Ioannis Papaefstathiou, Theofanis Orphanoudakis, George Kornaros, Christopher Kachris, Ioannis Mavroidis, Aristides Nikologiannis
2004	J	`jnl`	PRO3: A Hybrid NPU Architecture. IEEE Micro Ioannis Papaefstathiou, Stylianos Perissakis, Theofanis Orphanoudakis, Nikos A. Nikolaou, George Kornaros, Nicholas Zervos, George E. Konstantoulakis, Dionisios N. Pnevmatikatos, Kyriakos Vlachos
2003	—	`conf`	Active flow identifiers for scalable, QoS scheduling in 10-Gbps network processors. ISCAS (2) George Kornaros, Theofanis Orphanoudakis, Ioannis Papaefstathiou
2003	C	`conf`	An Efficient Implementation of Fair Load Balancing over Multi-CPU SOC Architectures. DSD George Kornaros, Theofanis Orphanoudakis, Nicholaos Zervos
2003	—	`conf`	An innovative scheduling scheme for high-speed network processors. ISCAS (2) Ioannis Papaefstathiou, Helen-Catherine Leligou, Theofanis Orphanoudakis, George Kornaros, Nicholaos Zervos, George E. Konstantoulakis
2003	—	`conf`	GFS: An Efficient Implementation of Fair Scheduling for Mult-Gigabit Packet Networks. ASAP George Kornaros, Theofanis Orphanoudakis, Ioannis Papaefstathiou
2003	J	`jnl`	Hardware Architectures for the Efficient Implementation of Multi-Service Broadband Access and Multimedia Home Networks. Telecommun. Syst. Theofanis Orphanoudakis, Stylianos Perissakis, Kostas Pramataris, Nikos A. Nikolaou, Nicholas Zervos, Matthias Steck, Christoph Baumhof, Diederik Verkest, Chantal Ykman-Couvreur, Gregory Doumenis, Fotis Karoubalis, Ioanna Theologitou, Dionisios I. Reisis, George E. Konstantoulakis, Nikos Vogiatzis
2003	Misc	`conf`	Processing and Scheduling Components in an Innovative Network Processor Architecture. VLSI Design Kyriakos Vlachos, Nikos A. Nikolaou, Theofanis Orphanoudakis, Stylianos Perissakis, Dionisios N. Pnevmatikatos, George Kornaros, J. A. Sanchez, George E. Konstantoulakis
2002	J	`jnl`	Using a multiple priority reservation MAC to support differentiated services over HFC systems. Int. J. Commun. Syst. John D. Angelopoulos, Nelly Leligou, Theofanis Orphanoudakis, Giannis Pikrammenos
2000	—	`conf`	Access Control in Shared Access Networks Supporting Internet DiffServ. ONDM John D. Angelopoulos, Nelly Leligou, Theofanis Orphanoudakis, Giannis Pikrammenos, J. Sifnaios, Iakovos S. Venieris
1998	J	`jnl`	An ATM-friendly MAC for traffic concentration in HFC systems. Comput. Commun. John D. Angelopoulos, Theofanis Orphanoudakis