(Alternatively, you can see the Google Scholar Citation list of my publications)
Journals
[11] Nikolaos Sarafianos, Theodoros Giannakopoulos, Christophoros Nikou, Ioannis A. Kakadiaris, Curriculum learning of visual attribute clusters for multi-task classification, Pattern Recognition, Volume 80, August 2018, Pages 94-108
[10] Bougiatiotis, Konstantinos, and Theodoros Giannakopoulos. "Enhanced Movie Content Similarity Based on Textual, Auditory and Visual Information." Expert Systems with Applications (2017).
[9] Papakostas, Michalis; Spyrou, Evaggelos; Giannakopoulos, Theodoros; Siantikos, Giorgos; Sgouropoulos, Dimitrios; Mylonas, Phivos; Makedon, Fillia, "Deep Visual Attributes vs. Hand-Crafted Audio Features on Multidomain Speech Emotion Recognition.", 2017 Computation 5, no. 2: 26
[8]: Nivolianitou, Z. S., Koromila, I. A., Giannakopoulos, T. "Bayesian network to predict environmental risk of a possible ship accident", International Journal of Risk Assessment and Management, 19(3), 228-239, 2016
[7]: Sarafianos, Nikolaos, Theodoros Giannakopoulos, and Sergios Petridis. "Audio-visual speaker diarization using fisher linear semi-discriminant analysis." Multimedia Tools and Applications 75.1 (2016): 115-130.
[6]: Giannakopoulos Theodoros. pyAudioAnalysis: An Open-Source Python Library for Audio Signal Analysis. PloS one 10.12 (2015): e0144610.
[5]: Petridis, S., Giannakopoulos, T., Spyropoulos, C. D. (2015). A Low Cost Pupillometry Approach. International Journal of E-Health and Medical Communications (IJEHMC), 6(4), 49-61.
[4] Theodoros Giannakopoulos and Sergios Petridis. Fisher Linear Semi-discriminant Analysis for Speaker Diarization, IEEE Transactions On Audio, Speech, And Language Processing, Vol. 20, No. 7, September 2012
[3] Thanassis Perperis, Theodoros Giannakopoulos, Alexandros Makris, Dimitrios I. Kosmopoulos, Sofia Tsekeridou, Stavros J. Perantonis and Sergios Theodoridis. Multimodal and ontology-based fusion approaches of audio and visual processing for violence detection in movies. Expert Systems with Applications, Vol 38(11), October 2011, pp: 14102-14116
[2] Aggelos Pikrakis, Theodoros Giannakopoulos, and Sergios Theodoridis. A speech - music discriminator of radio recordings based on dynamic programming and bayesian networks. Multimedia, IEEE Transactions on, 10(5):846-857, 2008.
[1] Theodoros Giannakopoulos, Nikolas Tatlas, Todor Ganchev, and Ilias Potamitis. A practical, real-time speech-driven home automation front-end. IEEE Transactions on Consumer Electronics, 51(2):514-523, 2005.
Book Chapters
[5] Sotirios Gyftakis, Ioanna Koromila, Theodore Giannakopoulos, Zoe Nivolianitou, Eleni Charou, Stavros Perantonis, Decision Support Tool Employing Bayesian Risk Framework for Environmentally Safe Shipping in Modeling, Computing and Data Handling Methodologies for Maritime Transportation pp 117-143, Part of the Intelligent Systems Reference Library book series (ISRL, volume 131)
[4] D. Sgouropoulos, Th. Giannakopoulos, G. Siantikos, E. Spyrou and S. Perantonis, Detection of Clothes Change Fusing Color, Texture, Edge and Depth Information. M.S. Obaidat, A. Holzinger and J. Filipe (eds.), E-Business and Telecommunications, vol. 554 of Communications in Computer and Information Science, pp. 383-392, Springer, 2015
[3] Giannakopoulos, Theodoros, Stasinos Konstantopoulos, Georgios Siantikos, and Vangelis Karkaletsis. "Design for a System of Multimodal Interconnected ADL Recognition Services." In Components and Services for IoT Platforms, pp. 323-333. Springer International Publishing, 2017
[2] Petridis, Sergios, Theodoros Giannakopoulos, and Stavros Perantonis. "Unobtrusive Low-Cost Physiological Monitoring Using Visual Information." Handbook of Research on Innovations in the Diagnosis and Treatment of Dementia (2015): 306.
[1] Aggelos Pikrakis, Theodoros Giannakopoulos, and Sergios Theodoridis. An overview of speech - music discrimination techniques in the context of audio recordings. Multimedia Services in Intelligent Environments (Advanced Tools and Methodologies, Studies in Computational Intelligence), 120:81-102, 2008.
Book Translations - Editing
[2] Tranlation (to Greek) of the book: Multimedia Systems: Algorithms, Standards, and Industry Practices, Parag Havaldar and Gerard Medioni
[1] Translation (to Greek) and editing of the book: Pattern Recognition, Sergios Theodoridis and Konstantinos Koutroumbas
Conference Proceedings
[49] Spyrou, E., Giannakopoulos, T., Sgouropoulos, D., and Papakostas, M. (2017, July). Extracting emotions from speech using a bag-of-visual-words approach. In Semantic and Social Media Adaptation and Personalization (SMAP), 2017 12th International Workshop on (pp. 80-83). IEEE.
[48] N. Sarafianos, T. Giannakopoulos, C. Nikou, and I.A. Kakadiaris, Curriculum Learning for Multi-Task Classification of Visual Attributes, Proc. IEEE International Conference on Computer Vision Workshops 2017
[47] Papakostas, M., Giannakopoulos, T., \& Karkaletsis, V. (2017, June). A Fitness Monitoring System based on Fusion of Visual and Sensorial Information. In Proceedings of the 10th International Conference on PErvasive Technologies Related to Assistive Environments (pp. 280-285). ACM. ISO 690
[46] Theodoros Giannakopoulos and Stasinos Konstantopoulos, Daily Activity Recognition based on Meta-classification of Low-level Audio Events, Proceedings of ICT4AWE 2017, ISBN: 978-989-758-251-6
[45] M.Papakostas, T. Giannakopoulos,F. Makedon, V. Karkaletsis,"Short-term Recognition of Human Activities using Convolutional Neural Networks" ,2016 International Conference on Signal-Image Technology \& Internet Based Systems (SITIS). IEEE, 2016
[44] Georgios Siantikos, Theodoros Giannakopoulos, Stasinos Konstantopoulos, A Low-cost Approach for Detecting Activities of Daily Living using Audio Information: A Use Case on Bathroom Activity Monitoring, 2nd International Conference on Information and Communication Technologies for Ageing Well and e-Health (ICT4AWE 2016), Rome, Italy, 21-22 April 2016
[43] Theodoros Giannakopoulos, Georgios Siantikos, "A ROS Framework for Audio-Based Activity Recognition", In Proceedings of the 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA 2016)
[42] Christos Smailis, Nikolaos Sarafianos, Theodoros Giannakopoulos, Stavros Perantonis, "Fusing Active Orientation Models and Mid-term Audio Features for Automatic Depression Estimation", In Proceedings of the 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA 2016)
[41] Bougiatiotis, Konstantinos, and Theodoros Giannakopoulos. "Content Representation and Similarity of Movies based on Topic Extraction from Subtitles." Proceedings of the 9th Hellenic Conference on Artificial Intelligence. ACM, 2016.
[40] Antonopoulos, Christos, Georgios Keramidas, Nikolaos S. Voros, Michael Hübner, Diana Göhringer, Maria Dagioglou, Theodore Giannakopoulos, Stasinos Konstantopoulos, and Vangelis Karkaletsis. "Robots in assisted living environments as an unobtrusive, efficient, reliable and modular solution for independent ageing: The RADIO perspective." In International Symposium on Applied Reconfigurable Computing, pp. 519-530. Springer International Publishing, 2015.
[39] Charou, E., Bratsolis, E., Gyftakis, S., Giannakopoulos, T., \& Perantonis, S. (2015, July). Use of Sentinel-1 data for Maritime Domain Awareness: Preliminary results. In Information, Intelligence, Systems and Applications (IISA), 2015 6th International Conference on (pp. 1-4). IEEE.
[38] Sgouropoulos, D., Spyrou, E., Siantikos, G., \& Giannakopoulos, T. (2015, November). Counting and tracking people in a smart room: An IoT approach. In Semantic and Social Media Adaptation and Personalization (SMAP), 2015 10th International Workshop on (pp. 1-5). IEEE.
[37] Siantikos, G., Sgouropoulos, D., Giannakopoulos, T., Spyrou, E. (2015, September). Fusing multiple audio sensors for acoustic event detection. In Image and Signal Processing and Analysis (ISPA), 2015 9th International Symposium on (pp. 265-269). IEEE.
[36] Giannakopoulos, T., Papakostas, M., Perantonis, S., Karkaletsis, V. (2015, September). Visual sentiment analysis for brand monitoring enhancement. In Image and Signal Processing and Analysis (ISPA), 2015 9th International Symposium on (pp. 1-6). IEEE.
[35] Koromila, I., Nivolianitou, Z., Perantonis, S., Giannakopoulos, T., Charou, E., Gyftakis, S., Spyrou, K. (2015). Environmental Risk Assessment for the Aegean Sea. 11th International Conference on Marine Navigation and Safety of Sea Transportation (TransNav 2015)
[34] Tsiakas, Konstantinos, Lynette Watts, Cyril Lutterodt, Theodoros Giannakopoulos, Alexandros Papangelis, Robert Gatchel, Vangelis Karkaletsis, and Fillia Makedon. A Multimodal Adaptive Dialogue Manager for Depressive and Anxiety Disorder Screening: A Wizard-of-Oz Experiment, . In Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments
[33] Lioulemes, A., Sarafianos, N., Giannakopoulos, T., Karkaletsis, V. (2015, July). A two-step identification method for human-robot interaction in assistive environments. In Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments (p. 71)
[32] Akasiadis, C., Spyrou, E., Pierris, G., Sgouropoulos, D., Siantikos, G., Mavrommatis, A., Vrakopoulos C., Giannakopoulos, T. (2015, July). Exploiting future internet technologies: the smart room case. In Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments (p. 85)
[31] Giannakopoulos, T., Siantikos, G., Perantonis, S., Votsi, N. E., Pantis, J. (2015, July). Automatic soundscape quality estimation using audio analysis. In Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments (p. 19)
[30] Giannakopoulos, T., Foufoulas, I., Stamatogiannakis, E., Dimitropoulos, H., Manola, N., Ioannidis, Y. (2015, May). Visual-Based Classification of Figures from Scientific Literature. In Proceedings of the 24th International Conference on World Wide Web Companion (pp. 1059-1060)
[29] Giannakopoulos, T., Gyftakis, S., Charou, E., Perantonis, S., Nivolianitou, Z., Koromila, I., Makrygiorgos, A. (2015). Long-term marine traffic monitoring for environmental safety in the aegean sea. 36th Int’l Symposium on Remote Sensing of Environment, May 2015, Berlin, Germany
[28] Lehinevych, T., Kokkinis-Ntrenis, N., Siantikos, G., Giannakopoulos, T., Konstantopoulos, S. ``Discovering similarities for content-based recommendation and browsing in multimedia collections'' Signal-Image Technology and Internet-Based Systems (SITIS), 2014 Tenth International Conference on. IEEE, 2014.
[27] Dimitris Sgouropoulos, Theodoros Giannakopoulos, Sergios Petridis, Stavros Perantonis and Antonis Korakis, ``Clothes Change Detection Using the Kinect Sensor'' in 11th International Conference on Signal Processing and Multimedia Applications, 2014
[26] Giannakopoulos, Theodoros, et al. "Realtime depression estimation using mid-term audio features." Artificial Intelligence and Assistive Medicine (AI-AM/NetMed 2014) (2014): 41.
[25] Theodoros Giannakopoulos, Ioannis Foufoulas, Eleftherios Stamatogiannakis, Harry Dimitropoulos, Natalia Manola and Yannis Ioannidis, ``Discovering and visualizing interdisciplinary content classes in scientific publications'', 3rd International Workshop on Mining Scientific Publications, 2014
[24] Theodoros Giannakopoulos, Ioannis A. Vetsikas, Ioanna Koromila, Vangelis Karkaletsis, Stavros Perantonis, ``AMINESS: A Platform for Environmentally Safe Shipping'', the 7th International Conference on PErvasive Technologies Related to Assistive Environments , PETRA 2014
[23] Ioanna Koromila, Zoe Nivolianitou and Theodoros Giannakopoulos, ``Bayesian network to Predict Environmental Risk of a Possible Ship Accident'', the 7th International Conference on PErvasive Technologies Related to Assistive Environments , PETRA 2014
[22] Konstantinos Tsiakas, Thedoros Giannakopoulos, Stasinos Konstantopoulos, ``A Semi-Automatic Multimodal Annotation Environment for Robot Sensor Data``, 6th International Conferences on Advances in Multimedia, MMEDIA 2014
[21] Giannakopoulos, T., Stamatogiannakis, E., Foufoulas, I., Dimitropoulos, H., Manola, N. and Ioannidis, Y.. ``Content Visualization of Scientific Corpora Using an Extensible Relational Database Implementation.'' Theory and Practice of Digital Libraries--TPDL 2013
[20] Petridis, Sergios, Theodoros Giannakopoulos, and Constantine D. Spyropoulos. Unobtrusive Low Cost Pupil Size Measurements using Web cameras. International Workshop on Artificial Intelligence and NetMedicine. 2013.
[19] Giannakopoulos, T., Dimitropoulos, H., Metaxas, O., Manola, N., & Ioannidis, Y. Supervised Content Visualization of Scientific Publications: A Case Study on the ArXiv Dataset. In Language Processing and Intelligent Information Systems 2013, pp. 206-211
[18] Theodoros Giannakopoulos and Sergios Petridis. Detection and Clustering of Musical Audio Parts Using Fisher Linear Semi-Discriminant Analysis, in 20th European Signal Processing Conference (EUSIPCO2012), 2012.
[17] Theodoros Giannakopoulos and Sergios Petridis. Unsupervised speaker clustering in a linear discriminant subspace. In Ninth International Conference on Machine Learning and Applications, 2010.
[16] Theodoros Giannakopoulos, Makris Alexandros, Dimitrios Kosmopoulos, Stavros Perantonis, and Sergios Theodoridis. Audio-visual fusion for detecting violent scenes in videos. In 6th Hellenic Conference on Artificial Intelligence (SETN10), 2010.
[15] Sergios Petridis, Theodoros Giannakopoulos, and Stavros Perantonis. A multi-class method for detecting audio events in news broadcasts. In 6th Hellenic Conference on Artificial Intelligence (SETN10), 2010.
[14] Theodoros Giannakopoulos, Sergios Petridis, and Stavros Perantonis. User-driven recognition of audio events in news videos. In 5th International Workshop on Semantic Media Adaptation and Personalization (SMAP2010), 2010.
[13] Sergios Petridis, Katernia Papantoniou, Theodoros Giannakopoulos, Georgios Paliouras, Miltiadis Koutsokeras, Ilias Zavitsanos, George Tsatsaronis, Girorgos Akrivas, Basilis Gatos, Kostas Ntirogiannis and Stavros Perantonis, Joint analysis of audio and text data in CASAM, in Proceedings of the 5th International Conference on Semantic and Digital Media Technologies (SAMT 2010), 2010
[12] Theodoros Giannakopoulos, Aggelos Pikrakis, and Sergios Theodoridis. A multimodal approach to violence detection in video sharing sites. In 20th International Conference on Pattern Recognition (ICPR2010), 2010.
[11] Theodoros Giannakopoulos, Aggelos Pikrakis, and Sergios Theodoridis. A dimensional approach to emotion recognition of speech from movies. In 34th International Conference on Acoustics, Speech, and Signal Processing (ICASSP2009), 2009.
[10] Theodoros Giannakopoulos Aggelos Pikrakis and Sergios Theodoridis. Gunshot detection in audio streams from movies by means of dynamic programming and bayesian networks. In 33rd International Conference on Acoustics, Speech, and Signal Processing (ICASSP08), 2008.
[9] Theodoros Giannakopoulos, Aggelos Pikrakis, and Sergios Theodoridis. A novel efficient approach for audio segmentation. In 19th International Conference on Pattern Recognition, 2008 (ICPR08), 2008.
[8] Theodoros Giannakopoulos, Aggelos Pikrakis, and Sergios Theodoridis. Music tracking in audio streams from movies. In IEEE International Workshop on Multimedia Signal Processing (MMSP08), 2008.
[7] Aggelos Pikrakis, Theodoros Giannakopoulos, and Sergios Theodoridis. A dynamic programming approach to speech - music discrimination of radio recordings. In 15th European Signal Processing Conference (EUSIPCO07), 2007.
[6] Theodoros Giannakopoulos, Aggelos Pikrakis, and Sergios Theodoridis. A multi-class audio classification method with respect to violent content in movies, using bayesian networks. In IEEE International Workshop on Multimedia Signal Processing (MMSP07), 2007.
[5] Aggelos Pikrakis, Theodoros Giannakopoulos, and Sergios Theodoridis. A computationally efficient speech - music discriminator for radio recordings. In 2006 International Conference on Music Information Retrieval and Related Activities (ISMIR06), 2006.
[4] Theodoros Giannakopoulos, Dimitrios Kosmopoulos, Andreas Aristidou, and Sergios Theodoridis. Violence content classification using audio features. In 4th Hellenic Conference on Artificial Intelligence (SETN06), 2006.
[3] Theodoros Giannakopoulos, Aggelos Pikrakis, and Sergios Theodoridis. A speech - music discriminator for radio recordings using bayesian networks. In 2006 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP06), 2006.
[2] Aggelos Pikrakis, Theodoros Giannakopoulos, and Sergios Theodoridis. Speech - music discrimination for radio broadcasts using a hybrid hmm-bayesian network architecture. In 14th European Signal Processing Conference (EUSIPCO06), 2006.
[1] T. Giannakopoulos, D. Cavouras, N. Dimitropoulos, and S. Theodoridis. Design and implementation of a semi-automatic algorithm for boundary detection of breast nodules in high-resolution ultrasound images. In 3rd European Symposium on Biomedical Engineering and Medical Physics, 2002.