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National Technical University of Athens (NTUA): Athens, GR

2002-05-21 to present | Associate Professor (School of Electrical and Computer Engineering)
Employment
Source: Self-asserted source
Costas Tzafestas

Works (50 of 84)

Items per page:
Page 1 of 2

Modeling, Simulation and Control of the Double Delta Surgical Robot

Machines
2024-09 | Journal article | Author
Contributors: George Moustris; Costas Tzafestas
Source: check_circle
Multidisciplinary Digital Publishing Institute

A Review of Real-Time Implementable Cooperative Aerial Manipulation Systems

Drones
2024-05 | Journal article | Author
Contributors: Stamatina Barakou; Costas Tzafestas; Kimon Valavanis
Source: check_circle
Multidisciplinary Digital Publishing Institute

Bio-inspired meta-learning for active exploration during non-stationary multi-Armed bandit tasks

2017 Intelligent Systems Conference, IntelliSys 2017
2018 | Conference paper
EID:

2-s2.0-85051062840

Contributors: Velentzas, G.; Tzafestas, C.; Khamassi, M.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Robot fast adaptation to changes in human engagement during simulated dynamic social interaction with active exploration in parameterized reinforcement learning

IEEE Transactions on Cognitive and Developmental Systems
2018 | Journal article
EID:

2-s2.0-85049464358

Contributors: Khamassi, M.; Velentzas, G.; Tsitsimis, T.; Tzafestas, C.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

User-Oriented Evaluation of a Robotic Rollator That Provides Navigation Assistance in Frail Older Adults with and without Cognitive Impairment

Gerontology
2018 | Journal article
EID:

2-s2.0-85035748482

Contributors: Werner, C.; Moustris, G.P.; Tzafestas, C.S.; Hauer, K.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Active exploration and parameterized reinforcement learning applied to a simulated human-robot interaction task

Proceedings - 2017 1st IEEE International Conference on Robotic Computing, IRC 2017
2017 | Conference paper
EID:

2-s2.0-85020210232

Contributors: Khamassi, M.; Velentzas, G.; Tsitsimis, T.; Tzafestas, C.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Comparative experimental validation of human gait tracking algorithms for an intelligent robotic rollator

Proceedings - IEEE International Conference on Robotics and Automation
2017 | Conference paper
EID:

2-s2.0-85028012127

Contributors: Chalvatzaki, G.; Papageorgiou, X.S.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Estimating double support in pathological gaits using an HMM-based analyzer for an intelligent robotic walker

RO-MAN 2017 - 26th IEEE International Symposium on Robot and Human Interactive Communication
2017 | Conference paper
EID:

2-s2.0-85045830084

Contributors: Chalvatzaki, G.; Papageorgiou, X.S.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Intelligent assistive robotic systems for the elderly: Two real-life use cases

ACM International Conference Proceeding Series
2017 | Conference paper
EID:

2-s2.0-85025146448

Contributors: Papageorgiou, X.S.; Chalvatzaki, G.; Dometios, A.C.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Intention-based front-following control for an intelligent robotic rollator in indoor environments

2016 IEEE Symposium Series on Computational Intelligence, SSCI 2016
2017 | Conference paper
EID:

2-s2.0-85016046202

Contributors: Moustris, G.P.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Real-time end-effector motion behavior planning approach using on-line point-cloud data towards a user adaptive assistive bath robot

IEEE International Conference on Intelligent Robots and Systems
2017 | Conference paper
EID:

2-s2.0-85041964348

Contributors: Dometios, A.C.; Papageorgiou, X.S.; Arvanitakis, A.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Social human-robot interaction for the elderly: Two real-life use cases

ACM/IEEE International Conference on Human-Robot Interaction
2017 | Conference paper
EID:

2-s2.0-85016397261

Contributors: Zlatintsi, A.; Rodomagoulakis, I.; Pitsikalis, V.; Koutras, P.; Kardaris, N.; Papageorgiou, X.; Tzafestas, C.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

The MOBOT rollator human-robot interaction model and user evaluation process

2016 IEEE Symposium Series on Computational Intelligence, SSCI 2016
2017 | Conference paper
EID:

2-s2.0-85014849100

Contributors: Efthimiou, E.; Fotinea, S.-E.; Goulas, T.; Koutsombogera, M.; Karioris, P.; Vacalopoulou, A.; Rodomagoulakis, I.; Maragos, P.; Tzafestas, C.; Pitsikalis, V. et al.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Towards a user-adaptive context-aware robotic walker with a pathological gait assessment system: First experimental study

IEEE International Conference on Intelligent Robots and Systems
2017 | Conference paper
EID:

2-s2.0-85041946702

Contributors: Chalvatzaki, G.; Papageorgiou, X.S.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Assistive front-following control of an intelligent robotic rollator based on a modified dynamic window planner

Proceedings of the IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics
2016 | Conference paper
EID:

2-s2.0-84983458998

Contributors: Moustris, G.P.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Experimental comparison of human gait tracking algorithms: Towards a context-aware mobility assistance robotic walker

24th Mediterranean Conference on Control and Automation, MED 2016
2016 | Conference paper
EID:

2-s2.0-84986212727

Contributors: Chalvatzaki, G.; Papageorgiou, X.S.; Werner, C.; Hauer, K.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Experimental validation of human pathological gait analysis for an assisted living intelligent robotic walker

Proceedings of the IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics
2016 | Conference paper
EID:

2-s2.0-84983394520

Contributors: Papageorgiou, X.S.; Chalvatzaki, G.; Lianos, K.-N.; Werner, C.; Hauer, K.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Human joint angle estimation and gesture recognition for assistive robotic vision

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2016 | Book
EID:

2-s2.0-84996606622

Contributors: Guler, A.; Kardaris, N.; Chandra, S.; Pitsikalis, V.; Werner, C.; Hauer, K.; Tzafestas, C.; Maragos, P.; Kokkinos, I.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Model-free learning on robot kinematic chains using a nested multi-agent topology

Journal of Experimental and Theoretical Artificial Intelligence
2016 | Journal article
EID:

2-s2.0-84932094855

Contributors: Karigiannis, J.N.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Simplifying mobile robot tracking control through feedback equivalence

24th Mediterranean Conference on Control and Automation, MED 2016
2016 | Conference paper
EID:

2-s2.0-84986193722

Contributors: Moustris, G.P.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

The MOBOT human-robot communication model

6th IEEE Conference on Cognitive Infocommunications, CogInfoCom 2015 - Proceedings
2016 | Conference paper
EID:

2-s2.0-84966658383

Contributors: Fotinea, S.-E.; Efthimiou, E.; Koutsombogera, M.; Dimou, A.-L.; Goulas, T.; Maragos, P.; Tzafestas, C.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

The MOBOT human-robot interaction-Showcasing assistive HRI

ACM International Conference Proceeding Series
2016 | Conference paper
EID:

2-s2.0-85014870649

Contributors: Fotinea, S.-E.; Dimou, A.-L.; Efthimiou, E.; Tzafestas, C.; Goulas, T.; Pitsikalis, V.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

The MOBOT platform – Showcasing multimodality in human-assistive robot interaction

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2016 | Book
EID:

2-s2.0-84978909801

Contributors: Efthimiou, E.; Fotinea, S.-E.; Goulas, T.; Dimou, A.-L.; Koutsombogera, M.; Pitsikalis, V.; Maragos, P.; Tzafestas, C.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Towards ICT-supported bath robots: Control architecture description and localized perception of user for robot motion planning

24th Mediterranean Conference on Control and Automation, MED 2016
2016 | Conference paper
EID:

2-s2.0-84986195527

Contributors: Dometios, A.C.; Papageorgiou, X.S.; Tzafestas, C.S.; Vartholomeos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Gait modelling for a context-awa re user-adaptive robotic assistant platform

8th International Conference on Integrated Modeling and Analysis in Applied Control and Automation, IMAACA 2015
2015 | Conference paper
EID:

2-s2.0-84960923058

Contributors: Chalvatzaki, G.G.; Papageorgiou, X.S.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Hidden markov modeling of human pathological gait using laser range finder for an assisted living intelligent robotic walker

IEEE International Conference on Intelligent Robots and Systems
2015 | Conference paper
EID:

2-s2.0-84958157458

Contributors: Papageorgiou, X.S.; Chalvatzaki, G.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Recent algorithms for fuzzy and neurofuzzy path planning and navigation of autonomous mobile robots

European Control Conference, ECC 1999 - Conference Proceedings
2015 | Conference paper
EID:

2-s2.0-84930606291

Contributors: Tzafestas, C.S.; Tzafestas, S.G.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Towards an intelligent robotic walker for assisted living using multimodal sensorial data

Proceedings of the 2014 4th International Conference on Wireless Mobile Communication and Healthcare - "Transforming Healthcare Through Innovations in Mobile and Wireless Technologies", MOBIHEALTH 2014
2015 | Conference paper
EID:

2-s2.0-84925379515

Contributors: Chalvatzaki, G.G.; Pavlakos, G.; Maninis, K.; Papageorgiou, X.S.; Pitsikalis, V.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

User front-following behaviour for a mobility assistance robot: A kinematic control approach

8th International Conference on Integrated Modeling and Analysis in Applied Control and Automation, IMAACA 2015
2015 | Conference paper
EID:

2-s2.0-84960849458

Contributors: Moustris, G.P.; Dometios, A.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Advances in intelligent mobility assistance robot integrating multimodal sensory processing

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2014 | Book
EID:

2-s2.0-84903484978

Contributors: Papageorgiou, X.S.; Tzafestas, C.S.; Maragos, P.; Pavlakos, G.; Chalvatzaki, G.; Moustris, G.; Kokkinos, I.; Peer, A.; Stanczyk, B.; Fotinea, E.-S. et al.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Data acquisition towards defining a multimodal interaction model for human - Assistive robot communication

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2014 | Book
EID:

2-s2.0-84903441769

Contributors: Fotinea, E.-S.; Efthimiou, E.; Dimou, A.-L.; Goulas, T.; Karioris, P.; Peer, A.; Maragos, P.; Tzafestas, C.; Kokkinos, I.; Hauer, K. et al.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Hidden Markov modeling of human normal gait using laser range finder for a mobility assistance robot

Proceedings - IEEE International Conference on Robotics and Automation
2014 | Conference paper
EID:

2-s2.0-84929172797

Contributors: Papageorgiou, X.S.; Chalvatzaki, G.; Tzafestas, C.S.; Maragos, P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

RMAP: A rectangular cuboid approximation framework for 3D environment mapping

Autonomous Robots
2014 | Journal article
EID:

2-s2.0-84905719330

Contributors: Khan, S.; Dometios, A.; Verginis, C.; Tzafestas, C.; Wollherr, D.; Buss, M.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Active motion compensation in robotic cardiac surgery

2013 European Control Conference, ECC 2013
2013 | Conference paper
EID:

2-s2.0-84893241696

Contributors: Moustris, G.P.; Mantelos, A.I.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Enhancing surgical accuracy using virtual fixtures and motion compensation in robotic beating heart surgery

2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Conference Proceedings
2013 | Conference paper
EID:

2-s2.0-84885216656

Contributors: Moustris, G.P.; Mantelos, A.I.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Shared control for motion compensation in robotic beating heart surgery

Proceedings - IEEE International Conference on Robotics and Automation
2013 | Conference paper
EID:

2-s2.0-84887269867

Contributors: Moustris, G.P.; Mantelos, A.I.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Telehaptic perception of delayed stiffness using adaptive impedance control: Experimental psychophysical analysis

Presence: Teleoperators and Virtual Environments
2013 | Journal article
EID:

2-s2.0-84899765480

Contributors: Tzafestas, C.S.; Velanas, S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

An optimization approach for 3D environment mapping using normal vector uncertainty

2012 12th International Conference on Control, Automation, Robotics and Vision, ICARCV 2012
2012 | Conference paper
EID:

2-s2.0-84876052322

Contributors: Khan, S.; Mitsou, N.; Wollherr, D.; Tzafestas, C.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Model-mediated telehaptic perception of delayed curvature

Proceedings - IEEE International Workshop on Robot and Human Interactive Communication
2012 | Conference paper
EID:

2-s2.0-84870851746

Contributors: Velanas, S.V.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Online semantic mapping of urban environments

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2012 | Book
EID:

2-s2.0-84868250808

Contributors: Mitsou, N.; De Nijs, R.; Lenz, D.; Frimberger, J.; Wollherr, D.; Kühnlenz, K.; Tzafestas, C.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Robustness and generalization of model-free learning for robot kinematic control using a nested-hierarchical multi-agent topology

Proceedings of the IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics
2012 | Conference paper
EID:

2-s2.0-84867429627

Contributors: Karigiannis, J.N.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Revealing cluster formation over huge volatile robotic data

Proceedings - IEEE International Conference on Data Mining, ICDM
2011 | Conference paper
EID:

2-s2.0-84857172394

Contributors: Mitsou, N.; Ntoutsi, I.; Wollherr, D.; Tzafestas, C.; Kriegel, H.-P.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Fuzzy rule based neuro-dynamic programming for mobile robot skill acquisition on the basis of a nested multi-agent architecture

2010 IEEE International Conference on Robotics and Biomimetics, ROBIO 2010
2010 | Conference paper
EID:

2-s2.0-79952937967

Contributors: Karigiannis, J.N.; Rekatsinas, T.I.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Human telehaptic perception of stiffness using an adaptive impedance reflection bilateral teleoperation control scheme

Proceedings - IEEE International Workshop on Robot and Human Interactive Communication
2010 | Conference paper
EID:

2-s2.0-78649883188

Contributors: Velanas, S.V.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Stereo analysis of archaelogical scenes using monogenic signal representation

Communications in Computer and Information Science
2010 | Book
EID:

2-s2.0-77957608649

Contributors: Alifragis, M.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Gestural teleoperation of a mobile robot based on visual recognition of sign language static handshapes

Proceedings - IEEE International Workshop on Robot and Human Interactive Communication
2009 | Conference paper
EID:

2-s2.0-72849116354

Contributors: Tzafestas, C.; Mitsou, N.; Georgakarakos, N.; Diamanti, O.; Maragos, P.; Fotinea, S.-E.; Efthimiou, E.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Stereo pair matching of archaeological scenes using phase domain methods

IMAGAPP 2009 - Proceedings of the 1st International Conference on Computer Imaging Theory and Applications
2009 | Conference paper
EID:

2-s2.0-67650551468

Contributors: Alifragis, M.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Adaptive impedance control in haptic teleoperation to improve transparency under time-delay

Proceedings - IEEE International Conference on Robotics and Automation
2008 | Conference paper
EID:

2-s2.0-51649115071

Contributors: Tzafestas, C.; Velanas, S.; Fakiridis, G.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Multi-agent hierarchical architecture modeling kinematic chains employing continuous RL learning with fuzzified state space

Proceedings of the 2nd Biennial IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics, BioRob 2008
2008 | Conference paper
EID:

2-s2.0-63049091027

Contributors: Karigiannis, J.N.; Tzafestas, C.S.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier

Pilot evaluation study of a virtual paracentesis simulator for skill training and assessment: The beneficial effect of haptic display

Presence: Teleoperators and Virtual Environments
2008 | Journal article
EID:

2-s2.0-41549149197

Contributors: Tzafestas, C.S.; Birbas, K.; Koumpouros, Y.; Christopoulos, D.
Source: Self-asserted source
Costas Tzafestas via Scopus - Elsevier
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Page 1 of 2

Peer review (7 reviews for 3 publications/grants)

Review activity for Advanced intelligent systems. (1)
Review activity for Autonomous robots. (1)
Review activity for Journal of intelligent & robotic systems. (5)