Theodoros Giannakopoulos

According to our database, Theodoros Giannakopoulos authored at least 88 papers between 2005 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2023

Smart Subs Subtitling App for Watching Live Virtual Dome Performances.

Dimitrios Christopoulos, Efstathia Chatzi, Georgios Sofianopoulos, Emanuella Patiniotaki, Sofia Eleftheriou, Panagiotis Koromilas, Panagiotis Kaliosis, Nefeli Gkouti, Theodoros Giannakopoulos, Kosmas Petridis, Eleni Sismanidou

Proceedings of the 18th International Workshop on Semantic and Social Media Adaptation and Personalization, 2023

MMATR: A Lightweight Approach for Multimodal Sentiment Analysis Based on Tensor Methods.

Panagiotis Koromilas, Mihalis A. Nicolaou, Theodoros Giannakopoulos, Yannis Panagakis

Proceedings of the IEEE International Conference on Acoustics, 2023

Designing and Evaluating Speech Emotion Recognition Systems: A Reality Check Case Study with IEMOCAP.

Nikolaos Antoniou, Athanasios Katsamanis, Theodoros Giannakopoulos, Shrikanth Narayanan

Proceedings of the IEEE International Conference on Acoustics, 2023

Unsupervised Temporal Analysis of Mouse Vocalizations.

Christodoulos Bochalis, César D. M. Vargas, Erich D. Jarvis, Theodoros Giannakopoulos

Proceedings of the IEEE Conference on Computational Intelligence in Bioinformatics and Computational Biology, 2023

2022

Photography Style Analysis using Convolutional Neural Networks.

Michael Zouros, Theodoros Giannakopoulos

Proceedings of the 16th International Conference on Signal-Image Technology & Internet-Based Systems, 2022

Cross-linguistic speech emotion recognition using CNNs: a use-case in Greek Theatrical Data.

Maria Moutti, Sofia Eleftheriou, Panagiotis Koromilas, Theodoros Giannakopoulos

Proceedings of the PETRA '22: The 15th International Conference on PErvasive Technologies Related to Assistive Environments, Corfu, Greece, 29 June 2022, 2022

A Dataset for Speech Emotion Recognition in Greek Theatrical Plays.

Maria Moutti, Sofia Eleftheriou, Panagiotis Koromilas, Theodoros Giannakopoulos

Proceedings of the Thirteenth Language Resources and Evaluation Conference, 2022

A Dataset for Greek Traditional and Folk Music: Lyra.

Charilaos Papaioannou, Ioannis Valiantzas, Theodore Giannakopoulos, Maximos A. Kaliakatsos-Papakostas, Alexandros Potamianos

Proceedings of the 23rd International Society for Music Information Retrieval Conference, 2022

Film Shot Type Classification Based on Camera Movement Styles.

Antonia Petrogianni, Panagiotis Koromilas, Theodoros Giannakopoulos

Proceedings of the Pattern Recognition and Image Analysis - 10th Iberian Conference, 2022

Real-time Feasibility of a Human Intention Method Evaluated Through a Competitive Human-Robot Reaching Game.

Athanasios C. Tsitos, Maria Dagioglou, Theodoros Giannakopoulos

Proceedings of the ACM/IEEE International Conference on Human-Robot Interaction, 2022

Object Size Prediction from Hand Movement Using a Single RGB Sensor.

Maria Dagioglou, Nikolaos Soulounias, Theodoros Giannakopoulos

Proceedings of the Artificial Intelligence in HCI, 2022

Audio and ASR-based Filled Pause Detection.

Aggelina Chatziagapi, Dimitris Sgouropoulos, Constantinos Karouzos, Thomas Melistas, Theodoros Giannakopoulos, Athanasios Katsamanis, Shrikanth Narayanan

Proceedings of the 10th International Conference on Affective Computing and Intelligent Interaction, 2022

2021

Unsupervised Multimodal Language Representations using Convolutional Autoencoders.

Panagiotis Koromilas, Theodoros Giannakopoulos

CoRR, 2021

White Paper: Challenges and Considerations for the Creation of a Large Labelled Repository of Online Videos with Questionable Content.

Thamar Solorio, Mahsa Shafaei, Christos Smailis, Mona T. Diab, Theodore Giannakopoulos, Heng Ji, Yang Liu, Rada Mihalcea, Smaranda Muresan, Ioannis A. Kakadiaris

CoRR, 2021

Multimodal Workplace Monitoring for Human Activity Recognition.

Alexandros Mitsou, Evaggelos Spyrou, Theodoros Giannakopoulos

Proceedings of the PCI 2021: 25th Pan-Hellenic Conference on Informatics, Volos, Greece, November 26, 2021

Automatic Assessment of Speaking Skills Using Aural and Textual Information.

Sofia Eleftheriou, Panagiotis Koromilas, Theodoros Giannakopoulos

Proceedings of the 4th International Conference on Natural Language and Speech Processing, 2021

2020

ARCHEO: A Dataset for Sound Event Detection in Areas of Touristic Interest.

Theodoros Psallidas, Alexander Mitsou, George Pikramenos, Evaggelos Spyrou, Theodore Giannakopoulos

Proceedings of the 15th International Workshop on Semantic and Social Media Adaptation and Personalization, 2020

2019

Real-Time Arm Gesture Recognition Using 3D Skeleton Joint Data.

Georgios Paraskevopoulos, Evaggelos Spyrou, Dimitrios Sgouropoulos, Theodoros Giannakopoulos, Phivos Mylonas

Algorithms, 2019

Fusing Handcrafted and Contextual Features for Human Activity Recognition.

Ioannis Vernikos, Eirini Mathe, Evaggelos Spyrou, Alexandros Mitsou, Theodore Giannakopoulos, Phivos Mylonas

Proceedings of the 14th International Workshop on Semantic and Social Media Adaptation and Personalization, 2019

Recognizing the quality of urban sound recordings using hand-crafted and deep audio features.

Theodoros Giannakopoulos, Stavros J. Perantonis

Proceedings of the 12th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2019

Athens Urban Soundscape (ATHUS): A Dataset for Urban Soundscape Quality Recognition.

Theodoros Giannakopoulos, Margarita Orfanidi, Stavros J. Perantonis

Proceedings of the MultiMedia Modeling - 25th International Conference, 2019

Unsupervised Low-Rank Representations for Speech Emotion Recognition.

Georgios Paraskevopoulos, Efthymios Tzinis, Nikolaos Ellinas, Theodoros Giannakopoulos, Alexandros Potamianos

Proceedings of the Interspeech 2019, 2019

Data Augmentation Using GANs for Speech Emotion Recognition.

Aggelina Chatziagapi, Georgios Paraskevopoulos, Dimitris Sgouropoulos, Georgios Pantazopoulos, Malvina Nikandrou, Theodoros Giannakopoulos, Athanasios Katsamanis, Alexandros Potamianos, Shrikanth Narayanan

Proceedings of the Interspeech 2019, 2019

Recognition of Urban Sound Events Using Deep Context-Aware Feature Extractors and Handcrafted Features.

Theodore Giannakopoulos, Evaggelos Spyrou, Stavros J. Perantonis

Proceedings of the Artificial Intelligence Applications and Innovations, 2019

Using Oliver API for emotion-aware movie content characterization.

Theodoros Giannakopoulos, Spiros Dimopoulos, Georgios Pantazopoulos, Aggelina Chatziagapi, Dimitris Sgouropoulos, Athanasios Katsamanis, Alexandros Potamianos, Shrikanth S. Narayanan

Proceedings of the 2019 International Conference on Content-Based Multimedia Indexing, 2019

2018

Curriculum learning of visual attribute clusters for multi-task classification.

Nikolaos Sarafianos, Theodoros Giannakopoulos, Christophoros Nikou, Ioannis A. Kakadiaris

Pattern Recognit., 2018

Speech-music discrimination using deep visual feature extractors.

Michalis Papakostas, Theodoros Giannakopoulos

Expert Syst. Appl., 2018

Enhanced movie content similarity based on textual, auditory and visual information.

Konstantinos Bougiatiotis, Theodoros Giannakopoulos

Expert Syst. Appl., 2018

Deep learned features for image retrieval.

Evangelos Mitsianis, Evaggelos Spyrou, Theodore Giannakopoulos, Stavros Niafas, Stavros J. Perantonis

Proceedings of the 10th Hellenic Conference on Artificial Intelligence, 2018

Speaker Verification based on extraction of Deep Features.

Evangelos Mitsianis, Evaggelos Spyrou, Theodore Giannakopoulos

Proceedings of the 10th Hellenic Conference on Artificial Intelligence, 2018

2017

Deep Visual Attributes vs. Hand-Crafted Audio Features on Multidomain Speech Emotion Recognition.

Michalis Papakostas, Evaggelos Spyrou, Theodoros Giannakopoulos, Giorgos Siantikos, Dimitrios Sgouropoulos, Phivos Mylonas, Fillia Makedon

Comput., 2017

Extracting emotions from speech using a bag-of-visual-words approach.

Evaggelos Spyrou, Theodoros Giannakopoulos, Dimitrios Sgouropoulos, Michalis Papakostas

Proceedings of the 12th International Workshop on Semantic and Social Media Adaptation and Personalization, 2017

A Fitness Monitoring System based on Fusion of Visual and Sensorial Information.

Michalis Papakostas, Theodoros Giannakopoulos, Vangelis Karkaletsis

Proceedings of the 10th International Conference on PErvasive Technologies Related to Assistive Environments, 2017

Daily Activity Recognition based on Meta-classification of Low-level Audio Events.

Theodoros Giannakopoulos, Stasinos Konstantopoulos

Proceedings of the 3rd International Conference on Information and Communication Technologies for Ageing Well and e-Health, 2017

Curriculum Learning for Multi-task Classification of Visual Attributes.

Nikolaos Sarafianos, Theodore Giannakopoulos, Christophoros Nikou, Ioannis A. Kakadiaris

Proceedings of the 2017 IEEE International Conference on Computer Vision Workshops, 2017

Towards predicting task performance from EEG signals.

Michalis Papakostas, Konstantinos Tsiakas, Theodoros Giannakopoulos, Fillia Makedon

Proceedings of the 2017 IEEE International Conference on Big Data (IEEE BigData 2017), 2017

2016

Audio-visual speaker diarization using fisher linear semi-discriminant analysis.

Nikolaos Sarafianos, Theodoros Giannakopoulos, Sergios Petridis

Multim. Tools Appl., 2016

Short-Term Recognition of Human Activities Using Convolutional Neural Networks.

Michalis Papakostas, Theodoros Giannakopoulos, Fillia Makedon, Vangelis Karkaletsis

Proceedings of the 12th International Conference on Signal-Image Technology & Internet-Based Systems, 2016

Content Representation and Similarity of Movies based on Topic Extraction from Subtitles.

Konstantinos Bougiatiotis, Theodoros Giannakopoulos

Proceedings of the 9th Hellenic Conference on Artificial Intelligence, 2016

Fusing active orientation models and mid-term audio features for automatic depression estimation.

Christos Smailis, Nikolaos Sarafianos, Theodoros Giannakopoulos, Stavros J. Perantonis

Proceedings of the 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2016

A ROS framework for audio-based activity recognition.

Theodoros Giannakopoulos, Georgios Siantikos

Proceedings of the 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2016

Monitoring Activities of Daily Living Using Audio Analysis and a RaspberryPI: A Use Case on Bathroom Activity Monitoring.

Georgios Siantikos, Theodoros Giannakopoulos, Stasinos Konstantopoulos

Proceedings of the Information and Communication Technologies for Ageing Well and e-Health, 2016

A Low-cost Approach for Detecting Activities of Daily Living using Audio Information: A Use Case on Bathroom Activity Monitoring.

Georgios Siantikos, Theodoros Giannakopoulos, Stasinos Konstantopoulos

Proceedings of the 2nd International Conference on Information and Communication Technologies for Ageing Well and e-Health, 2016

Computation and communication challenges to deploy robots in assisted living environments.

Georgios Keramidas, Christos P. Antonopoulos, Nikolaos S. Voros, Fynn Schwiegelshohn, Philipp Wehner, Jens Rettkowski, Diana Göhringer, Michael Hübner, Stasinos Konstantopoulos, Theodoros Giannakopoulos, Vangelis Karkaletsis, Vaggelis Mariatos

Proceedings of the 2016 Design, Automation & Test in Europe Conference & Exhibition, 2016

2015

A Low Cost Pupillometry Approach.

Sergios Petridis, Theodoros Giannakopoulos, Constantine D. Spyropoulos

Int. J. E Health Medical Commun., 2015

Visual-Based Classification of Figures from Scientific Literature.

Theodoros Giannakopoulos, Ioannis Foufoulas, Elefterios Stamatogiannakis, Harry Dimitropoulos, Natalia Manola, Yannis E. Ioannidis

Proceedings of the 24th International Conference on World Wide Web Companion, 2015

Counting and tracking people in a smart room: An IoT approach.

Dimitris Sgouropoulos, Evaggelos Spyrou, Giorgos Siantikos, Theodoros Giannakopoulos

Proceedings of the 10th International Workshop on Semantic and Social Media Adaptation and Personalization, 2015

A multimodal adaptive dialogue manager for depressive and anxiety disorder screening: a Wizard-of-Oz experiment.

Konstantinos Tsiakas, Lynette Watts, Cyril Lutterodt, Theodoros Giannakopoulos, Alexandros Papangelis, Robert Gatchel, Vangelis Karkaletsis, Fillia Makedon

Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2015

A two-step identification method for human-robot interaction in assistive environments.

Alexandros Lioulemes, Nikolaos Sarafianos, Theodoros Giannakopoulos, Vangelis Karkaletsis

Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2015

Automatic soundscape quality estimation using audio analysis.

Theodoros Giannakopoulos, Giorgos Siantikos, Stavros J. Perantonis, Nefta-Eleftheria Votsi, John Pantis

Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2015

Exploiting future internet technologies: the smart room case.

Charilaos Akasiadis, Evaggelos Spyrou, Georgios Pierris, Dimitris Sgouropoulos, Giorgos Siantikos, Alexandros Mavrommatis, Costas Vrakopoulos, Theodoros Giannakopoulos

Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2015

Fusing multiple audio sensors for acoustic event detection.

Giorgos Siantikos, Dimitris Sgouropoulos, Theodoros Giannakopoulos, Evaggelos Spyrou

Proceedings of the 9th International Symposium on Image and Signal Processing and Analysis, 2015

Visual sentiment analysis for brand monitoring enhancement.

Theodoros Giannakopoulos, Michalis Papakostas, Stavros J. Perantonis, Vangelis Karkaletsis

Proceedings of the 9th International Symposium on Image and Signal Processing and Analysis, 2015

A dynamic model for environmentally safe shipping through the Aegean Sea.

Ioanna A. Koromila, Zoe Nivolianitou, Theodoros Giannakopoulos, Stavros J. Perantonis, Eleni Charou, Sotirios Gyftakis

Proceedings of the 6th International Conference on Information, 2015

A maritime data analytics platform for policy recommendation.

Sotirios Gyftakis, Theodoros Giannakopoulos, Angelos Makrygiorgos, Eleni Charou, Stavros J. Perantonis, Ioanna A. Koromila, Zoe Nivolianitou

Proceedings of the 6th International Conference on Information, 2015

Use of Sentinel-1 data for Maritime Domain Awareness: Preliminary results.

Eleni Charou, Emmanuel Bratsolis, Sotirios Gyftakis, Theodoros Giannakopoulos, Stavros J. Perantonis

Proceedings of the 6th International Conference on Information, 2015

Robots in Assisted Living Environments as an Unobtrusive, Efficient, Reliable and Modular Solution for Independent Ageing: The RADIO Perspective.

Christos P. Antonopoulos, Georgios Keramidas, Nikolaos S. Voros, Michael Hübner, Diana Göhringer, Maria Dagioglou, Theodoros Giannakopoulos, Stasinos Konstantopoulos, Vangelis Karkaletsis

Proceedings of the Applied Reconfigurable Computing - 11th International Symposium, 2015

2014

Discovering and Visualizing Interdisciplinary Content Classes in Scientific Publications.

Theodoros Giannakopoulos, Ioannis Foufoulas, Elefterios Stamatogiannakis, Harry Dimitropoulos, Natalia Manola, Yannis E. Ioannidis

D Lib Mag., 2014

Discovering Similarities for Content-Based Recommendation and Browsing in Multimedia Collections.

Taras Lehinevych, Nikolaos Kokkinis-Ntrenis, Giorgos Siantikos, A. Seza Dogruöz, Theodoros Giannakopoulos, Stasinos Konstantopoulos

Proceedings of the Tenth International Conference on Signal-Image Technology and Internet-Based Systems, 2014

Clothes Change Detection Using the Kinect Sensor.

Dimitris Sgouropoulos, Theodoros Giannakopoulos, Sergios Petridis, Stavros J. Perantonis, Antonis Korakis

Proceedings of the SIGMAP 2014, 2014

Bayesian network to predict environmental risk of a possible ship accident.

Ioanna A. Koromila, Zoe Nivolianitou, Theodoros Giannakopoulos

Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments, 2014

AMINESS: a platform for environmentally safe shipping.

Theodoros Giannakopoulos, Ioannis A. Vetsikas, Ioanna A. Koromila, Vangelis Karkaletsis, Stavros J. Perantonis

Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments, 2014

Detection of Clothes Change Fusing Color, Texture, Edge and Depth Information.

Dimitrios Sgouropoulos, Theodoros Giannakopoulos, Giorgos Siantikos, Evaggelos Spyrou, Stavros J. Perantonis

Proceedings of the E-Business and Telecommunications - 11th International Joint Conference, 2014

Realtime depression estimation using mid-term audio features.

Theodoros Giannakopoulos, Christos Smailis, Stavros J. Perantonis, Constantine D. Spyropoulos

Proceedings of the 3rd International Workshop on Artificial Intelligence and Assistive Medicine co-located with the 21th European Conference on Artificial Intelligence (ECAI 2014), 2014

2013

Unobtrusive Low Cost Pupil Size Measurements using Web cameras.

Sergios Petridis, Theodoros Giannakopoulos, Constantine D. Spyropoulos

CoRR, 2013

Supervised Content Visualization of Scientific Publications: A Case Study on the ArXiv Dataset.

Theodoros Giannakopoulos, Harry Dimitropoulos, Omiros Metaxas, Natalia Manola, Yannis E. Ioannidis

Proceedings of the Language Processing and Intelligent Information Systems, 2013

Content Visualization of Scientific Corpora Using an Extensible Relational Database Implementation.

Theodoros Giannakopoulos, Elefterios Stamatogiannakis, Ioannis Foufoulas, Harry Dimitropoulos, Natalia Manola, Yannis E. Ioannidis

Proceedings of the Theory and Practice of Digital Libraries - TPDL 2013 Selected Workshops, 2013

2012

Fisher Linear Semi-Discriminant Analysis for Speaker Diarization.

Theodoros Giannakopoulos, Sergios Petridis

IEEE Trans. Speech Audio Process., 2012

Detection and clustering of musical audio parts using Fisher linear semi-discriminant analysis.

Theodoros Giannakopoulos, Sergios Petridis

Proceedings of the 20th European Signal Processing Conference, 2012

2011

Multimodal and ontology-based fusion approaches of audio and visual processing for violence detection in movies.

Thanassis Perperis, Theodoros Giannakopoulos, Alexandros Makris, Dimitrios I. Kosmopoulos, Sofia Tsekeridou, Stavros J. Perantonis, Sergios Theodoridis

Expert Syst. Appl., 2011

2010

User-driven recognition of audio events in news videos.

Theodoros Giannakopoulos, Sergios Petridis, Stavros J. Perantonis

Proceedings of the 5th International Workshop on Semantic Media Adaptation and Personalization, 2010

A Multi-class Method for Detecting Audio Events in News Broadcasts.

Sergios Petridis, Theodoros Giannakopoulos, Stavros J. Perantonis

Proceedings of the Artificial Intelligence: Theories, 2010

Audio-Visual Fusion for Detecting Violent Scenes in Videos.

Theodoros Giannakopoulos, Alexandros Makris, Dimitrios I. Kosmopoulos, Stavros J. Perantonis, Sergios Theodoridis

Proceedings of the Artificial Intelligence: Theories, 2010

A Multimodal Approach to Violence Detection in Video Sharing Sites.

Theodoros Giannakopoulos, Aggelos Pikrakis, Sergios Theodoridis

Proceedings of the 20th International Conference on Pattern Recognition, 2010

Unsupervised Speaker Clustering in a Linear Discriminant Subspace.

Theodoros Giannakopoulos, Sergios Petridis

Proceedings of the Ninth International Conference on Machine Learning and Applications, 2010

2009

Study and application of acoustic information for the detection of harmful content and fusion with visual information

Theodoros Giannakopoulos

PhD thesis, 2009

A dimensional approach to emotion recognition of speech from movies.

Theodoros Giannakopoulos, Aggelos Pikrakis, Sergios Theodoridis

Proceedings of the IEEE International Conference on Acoustics, 2009

2008

A Speech/Music Discriminator of Radio Recordings Based on Dynamic Programming and Bayesian Networks.

Aggelos Pikrakis, Theodoros Giannakopoulos, Sergios Theodoridis

IEEE Trans. Multim., 2008

Music tracking in audio streams from movies.

Theodoros Giannakopoulos, Aggelos Pikrakis, Sergios Theodoridis

Proceedings of the International Workshop on Multimedia Signal Processing, 2008

A novel efficient approach for audio segmentation.

Theodoros Giannakopoulos, Aggelos Pikrakis, Sergios Theodoridis

Proceedings of the 19th International Conference on Pattern Recognition (ICPR 2008), 2008

Gunshot detection in audio streams from movies by means of dynamic programming and Bayesian networks.

Aggelos Pikrakis, Theodoros Giannakopoulos, Sergios Theodoridis

Proceedings of the IEEE International Conference on Acoustics, 2008

2007

A Multi-Class Audio Classification Method With Respect To Violent Content In Movies Using Bayesian Networks.

Theodoros Giannakopoulos, Aggelos Pikrakis, Sergios Theodoridis

Proceedings of the IEEE 9th Workshop on Multimedia Signal Processing, 2007

A dynamic programming approach to speech/music discrimination of radio recordings.

Aggelos Pikrakis, Theodoros Giannakopoulos, Sergios Theodoridis

Proceedings of the 15th European Signal Processing Conference, 2007

2006

Violence Content Classification Using Audio Features.

Theodoros Giannakopoulos, Dimitrios I. Kosmopoulos, Andreas Aristidou, Sergios Theodoridis

Proceedings of the Advances in Artificial Intelligence, 4th Helenic Conference on AI, 2006

A computationally efficient speech/music discriminator for radio recordings.

Aggelos Pikrakis, Theodoros Giannakopoulos, Sergios Theodoridis

Proceedings of the ISMIR 2006, 2006

A Speech/Music Discriminator for Radio Recordings Using Bayesian Networks.

Theodoros Giannakopoulos, Aggelos Pikrakis, Sergios Theodoridis

Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

Speech/music discrimination for radio broadcasts using a hybrid HMM-Bayesian Network architecture.

Aggelos Pikrakis, Theodoros Giannakopoulos, Sergios Theodoridis

Proceedings of the 14th European Signal Processing Conference, 2006

2005

A practical, real-time speech-driven home automation front-end.

Theodoros Giannakopoulos, Nicolas-Alexander Tatlas, Todor Ganchev, Ilyas Potamitis

IEEE Trans. Consumer Electron., 2005