Niki Efthymiou

35 papers A* 2A 2B 2Misc 5Journal 13Unranked 11
YearRankTypeTitle / Venue / Authors
2026 J jnl
Mind the Shape Gap: A Benchmark and Baseline for Deformation-Aware 6D Pose Estimation of Agricultural Produce.
CoRR
Nikolas Chatzis, Angeliki Tsinouka, Katerina Papadimitriou, Niki Efthymiou, Marios Glytsos, George Retsinas, Paris Oikonomou, Gerasimos Potamianos, Petros Maragos, Panagiotis Paraskevas Filntisis
2025 J jnl
Age-Inclusive 3D Human Mesh Recovery for Action-Preserving Data Anonymization.
CoRR
Georgios Chatzichristodoulou, Niki Efthymiou, Panagiotis Paraskevas Filntisis, Georgios Pavlakos, Petros Maragos
2025 J jnl
Baby Sophia: A Developmental Approach to Self-Exploration through Self-Touch and Hand Regard.
CoRR
Stelios Zarifis, Ioannis Chalkiadakis, Artemis Chardouveli, Vasiliki Moutzouri, Aggelos Sotirchos, Katerina Papadimitriou, Panagiotis Paraskevas Filntisis, Niki Efthymiou, Petros Maragos, Katerina Pastra
2024 Misc conf
Augmenting Transformer Autoencoders with Phenotype Classification for Robust Detection of Psychotic Relapses.
ICASSP
Niki Efthymiou, George Retsinas, Panagiotis Paraskevas Filntisis, Petros Maragos
2024 J jnl
Mushroom Segmentation and 3D Pose Estimation from Point Clouds using Fully Convolutional Geometric Features and Implicit Pose Encoding.
CoRR
George Retsinas, Niki Efthymiou, Petros Maragos
2024 — conf
The 2nd E-Prevention Challenge: Psychotic and Non-Psychotic Relapse Detection Using Wearable-Based Digital Phenotyping.
ICASSP Workshops
Panagiotis Paraskevas Filntisis, Niki Efthymiou, George Retsinas, Athanasia Zlatintsi, Christos Garoufis, Thomas Sounapoglou, Panayotis Tsanakas, Nikolaos Smyrnis, Petros Maragos
2023 — conf
A Realistic Synthetic Mushroom Scenes Dataset.
CVPR Workshops
Dafni Anagnostopoulou, George Retsinas, Niki Efthymiou, Panayiotis Paraskevas Filntisis, Petros Maragos
2023 Misc conf
E-Prevention: The ICASSP-2023 Challenge on Person Identification and Relapse Detection from Continuous Recordings of Biosignals.
ICASSP
Athanasia Zlatintsi, Panagiotis Paraskevas Filntisis, Niki Efthymiou, Christos Garoufis, George Retsinas, Thomas Sounapoglou, Ilias Maglogiannis, Panayiotis Tsanakas, Nikolaos Smyrnis, Petros Maragos
2023 — conf
From Digital Phenotype Identification To Detection Of Psychotic Relapses.
ICHI
Niki Efthymiou, George Retsinas, Panagiotis Paraskevas Filntisis, Christos Garoufis, Athanasia Zlatintsi, Emmanouil Kalisperakis, Vasiliki Garyfalli, Thomas Karantinos, Marina Lazaridi, Nikolaos Smyrnis, Petros Maragos
2023 J jnl
Mushroom Detection and Three Dimensional Pose Estimation from Multi-View Point Clouds.
Sensors
George Retsinas, Niki Efthymiou, Dafni Anagnostopoulou, Petros Maragos
2023 — conf
Mushroom Segmentation and 3D Pose Estimation from Point Clouds using Fully Convolutional Geometric Features and Implicit Pose Encoding.
CVPR Workshops
George Retsinas, Niki Efthymiou, Petros Maragos
2023 Misc conf
Relapse Prediction from Long-Term Wearable Data Using Self-Supervised Learning and Survival Analysis.
ICASSP
E. Fekas, Athanasia Zlatintsi, Panagiotis Paraskevas Filntisis, Christos Garoufis, Niki Efthymiou, Petros Maragos
2022 — conf
A comparative study of autoencoder architectures for mental health analysis using wearable sensors data.
EUSIPCO
M. Panagiotou, Athanasia Zlatintsi, Panagiotis Paraskevas Filntisis, Anargyros J. Roumeliotis, Niki Efthymiou, Petros Maragos
2022 A conf
Child Engagement Estimation in Heterogeneous Child-Robot Interactions Using Spatiotemporal Visual Cues.
IROS
Dafni Anagnostopoulou, Niki Efthymiou, Christina Papailiou, Petros Maragos
2022 J jnl
ChildBot: Multi-robot perception and interaction with children.
Robotics Auton. Syst.
Niki Efthymiou, Panagiotis Paraskevas Filntisis, Petros Koutras, Antigoni Tsiami, Jack Hadfield, Gerasimos Potamianos, Petros Maragos
2022 J jnl
E-Prevention: Advanced Support System for Monitoring and Relapse Prevention in Patients with Psychotic Disorders Analyzing Long-Term Multimodal Data from Wearables and Video Captures.
Sensors
Athanasia Zlatintsi, Panagiotis Paraskevas Filntisis, Christos Garoufis, Niki Efthymiou, Petros Maragos, Andreas Menychtas, Ilias Maglogiannis, Panayiotis Tsanakas, Thomas Sounapoglou, Emmanouil Kalisperakis, Thomas Karantinos, Marina Lazaridi, Vasiliki Garyfalli, Asimakis Mantas, Leonidas Mantonakis, Nikolaos Smyrnis
2022 — conf
Towards Unsupervised Subject-Independent Speech-Based Relapse Detection in Patients with Psychosis using Variational Autoencoders.
EUSIPCO
Christos Garoufis, Athanasia Zlatintsi, Panayiotis Paraskevas Filntisis, Niki Efthymiou, Emmanouil Kalisperakis, Thomas Karantinos, Vasiliki Garyfalli, Marina Lazaridi, Nikolaos Smyrnis, Petros Maragos
2021 — conf
A robotic edutainment framework for designing child-robot interaction scenarios.
PETRA
Niki Efthymiou, Panagiotis Paraskevas Filntisis, Gerasimos Potamianos, Petros Maragos
2021 — conf
An Audiovisual Child Emotion Recognition System for Child-Robot Interaction Applications.
EUSIPCO
Panagiotis Paraskevas Filntisis, Niki Efthymiou, Gerasimos Potamianos, Petros Maragos
2021 — conf
An Unsupervised Learning Approach for Detecting Relapses from Spontaneous Speech in Patients with Psychosis.
BHI
Christos Garoufis, Athanasia Zlatintsi, Panagiotis Paraskevas Filntisis, Niki Efthymiou, Emmanouil Kalisperakis, Vasiliki Garyfalli, Thomas Karantinos, L. Mantonakis, Nikolaos Smyrnis, Petros Maragos
2021 A* conf
Engagement Estimation During Child Robot Interaction Using Deep Convolutional Networks Focusing on ASD Children.
ICRA
Dafni Anagnostopoulou, Niki Efthymiou, Christina Papailiou, Petros Maragos
2020 — conf
An Intelligent Cloud-Based Platform for Effective Monitoring of Patients with Psychotic Disorders.
AIAI (2)
Ilias Maglogiannis, Athanasia Zlatintsi, Andreas Menychtas, Dennis Papadimatos, Panayiotis Paraskevas Filntisis, Niki Efthymiou, George Retsinas, Panayiotis Tsanakas, Petros Maragos
2020 J jnl
ChildBot: Multi-Robot Perception and Interaction with Children.
CoRR
Niki Efthymiou, Panagiotis Paraskevas Filntisis, Petros Koutras, Antigoni Tsiami, Jack Hadfield, Gerasimos Potamianos, Petros Maragos
2020 — conf
Emotion Understanding in Videos Through Body, Context, and Visual-Semantic Embedding Loss.
ECCV Workshops (1)
Panagiotis Paraskevas Filntisis, Niki Efthymiou, Gerasimos Potamianos, Petros Maragos
2020 J jnl
Emotion Understanding in Videos Through Body, Context, and Visual-Semantic Embedding Loss.
CoRR
Panagiotis Paraskevas Filntisis, Niki Efthymiou, Gerasimos Potamianos, Petros Maragos
2020 J jnl
Identifying differences in physical activity and autonomic function patterns between psychotic patients and controls over a long period of continuous monitoring using wearable sensors.
CoRR
Panagiotis Paraskevas Filntisis, Athanasia Zlatintsi, Niki Efthymiou, Emmanouil Kalisperakis, Thomas Karantinos, Marina Lazaridi, Nikolaos Smyrnis, Petros Maragos
2020 Misc conf
Person Identification Using Deep Convolutional Neural Networks on Short-Term Signals from Wearable Sensors.
ICASSP
George Retsinas, Panayiotis Paraskevas Filntisis, Niki Efthymiou, Emmanouil Theodosis, Athanasia Zlatintsi, Petros Maragos
2019 J jnl
Fusing Body Posture With Facial Expressions for Joint Recognition of Affect in Child-Robot Interaction.
IEEE Robotics Autom. Lett.
Panagiotis Paraskevas Filntisis, Niki Efthymiou, Petros Koutras, Gerasimos Potamianos, Petros Maragos
2019 J jnl
Fusing Body Posture with Facial Expressions for Joint Recognition of Affect in Child-Robot Interaction.
CoRR
Panagiotis Paraskevas Filntisis, Niki Efthymiou, Petros Koutras, Gerasimos Potamianos, Petros Maragos
2018 Misc conf
Far-Field Audio-Visual Scene Perception of Multi-Party Human-Robot Interaction for Children and Adults.
ICASSP
Antigoni Tsiami, Panagiotis Paraskevas Filntisis, Niki Efthymiou, Petros Koutras, Gerasimos Potamianos, Petros Maragos
2018 B conf
Multi- View Fusion for Action Recognition in Child-Robot Interaction.
ICIP
Niki Efthymiou, Petros Koutras, Panagiotis Paraskevas Filntisis, Gerasimos Potamianos, Petros Maragos
2018 A* conf
Multi3: Multi-Sensory Perception System for Multi-Modal Child Interaction with Multiple Robots.
ICRA
Antigoni Tsiami, Petros Koutras, Niki Efthymiou, Panagiotis Paraskevas Filntisis, Gerasimos Potamianos, Petros Maragos
2018 A conf
Object Assembly Guidance in Child-Robot Interaction using RGB-D based 3D Tracking.
IROS
Jack Hadfield, Petros Koutras, Niki Efthymiou, Gerasimos Potamianos, Costas S. Tzafestas, Petros Maragos
2017 J jnl
COGNIMUSE: a multimodal video database annotated with saliency, events, semantics and emotion with application to summarization.
EURASIP J. Image Video Process.
Athanasia Zlatintsi, Petros Koutras, Georgios Evangelopoulos, Nikolaos Malandrakis, Niki Efthymiou, Katerina Pastra, Alexandros Potamianos, Petros Maragos
2015 B conf
Quality evaluation of computational models for movie summarization.
QoMEX
Athanasia Zlatintsi, Petros Koutras, Niki Efthymiou, Petros Maragos, Alexandros Potamianos, Katerina Pastra