Anyfantis, Dionysios, Athanasios Koutras, George Apostolopoulos, and Ioanna Christoyianni. “Breast Density Transformations Using CycleGANs for Revealing Undetected Findings in Mammograms.” Signals 4, no. 2 (June 2023): 421–38.
https://doi.org/10.3390/signals4020022.

Apostolopoulos, George, Athanasios Koutras, Dionysios Anyfantis, and Ioanna Christoyianni. “A Comparative Analysis of Breast Cancer Diagnosis by Fusing Visual and Semantic Feature Descriptors.” In 2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE), 1–6. Kragujevac, Serbia: IEEE, 2021.
https://doi.org/10.1109/BIBE52308.2021.9635481.

Apostolopoulos, George, Athanasios Koutras, Dionysios Anyfantis, Ioanna Christoyianni, and Evangelos Dermatas. “Improving the Diagnosis of Breast Cancer by Combining Visual and Semantic Feature Descriptors.” In Proceedings of the 22nd Engineering Applications of Neural Networks Conference, edited by Lazaros Iliadis, John Macintyre, Chrisina Jayne, and Elias Pimenidis, 3:83–94. Proceedings of the International Neural Networks Society. Cham: Springer International Publishing, 2021.
https://doi.org/10.1007/978-3-030-80568-5_7

Apostolopoulos, George, Athanasios Koutras, Dionysios Anyfantis, Ioanna Christoyianni, and Evaggelos Dermatas. “Fusing Low-Level Visual Features and High-Level Semantic Features for Breast Cancer Diagnosis in Digital Mammograms.” In 2020 IEEE 20th International Conference on Bioinformatics and Bioengineering (BIBE), 877–83. Cincinnati, OH, USA: IEEE, 2020.
https://doi.org/10.1109/BIBE50027.2020.00149.

Apostolopoulos, G., A. Koutras, I. Christoyianni, and E. Dermatas. “A New Method for Breast Cancer Identification Using Multi-Modal Features in Quaternionic Form.” In 2017 25th European Signal Processing Conference (EUSIPCO), 56–60. Kos, Greece: IEEE, 2017.
https://doi.org/10.23919/EUSIPCO.2017.8081168.

Koutras, Athanasios. “Song Emotion Recognition Using Music Genre Information.” In Speech and Computer, edited by Alexey Karpov, Rodmonga Potapova, and Iosif Mporas, 10458:669–79. Lecture Notes in Computer Science. Cham: Springer International Publishing, 2017.
https://doi.org/10.1007/978-3-319-66429-3_67.

Koutras, Athanasios, and George K. Kostopoulos. “EEG-Based Person Identification Using Rhythmic Brain Activity During Sleep.” In Artificial Neural Networks and Machine Learning – ICANN 2018, edited by Věra Kůrková, Yannis Manolopoulos, Barbara Hammer, Lazaros Iliadis, and Ilias Maglogiannis, 11141:682–92. Lecture Notes in Computer Science. Cham: Springer International Publishing, 2018.
https://doi.org/10.1007/978-3-030-01424-7_67.

Apostolopoulos, George, Athanasios Koutras, Ioanna Christoyianni, and Evaggelos Dermatas. “Computer Aided Classification of Mammographic Tissue Using Shapelets and Support Vector Machines.” In Artificial Intelligence: Methods and Applications, edited by Aristidis Likas, Konstantinos Blekas, and Dimitris Kalles, 8445:510–20. Lecture Notes in Computer Science. Cham: Springer International Publishing, 2014.
https://doi.org/10.1007/978-3-319-07064-3_44.

Koutras, A., G. K. Kostopoulos, and A. A. Ioannides. “Exploring the Variability of Single Trials in Somatosensory Evoked Responses Using Constrained Source Extraction and RMT.” IEEE Transactions on Bio-Medical Engineering 55, no. 3 (March 2008): 957–69.
https://doi.org/10.1109/TBME.2008.915708.

Zouridis, Ioannis, Athanasios Koutras, and George K. Kostopoulos. “Are Sleep Spindles and K-Complexes Related to Cardiac Activity?” Athens, Greece, 2016.

Koutras, Athanasios, Ioannis Zouridis, Aspasia Giannakopoulou, and George K. Kostopoulos. “Comparison of Sleep Spindles’ Characteristics in Descending Compared to Ascending Slope of the Nrem/Rem Sleep Cycle.” Budapest, Hungary, 2016.

Apostolopoulos, George, Athanasios Koutras, Ioanna Christoyianni, and Evaggelos Dermatas. “Computer Aided Diagnosis of Mammographic Tissue Using Shapelets in Quaternionic Representation.” In XIV Mediterranean Conference on Medical and Biological Engineering and Computing 2016, edited by Efthyvoulos Kyriacou, Stelios Christofides, and Constantinos S. Pattichis, 57:222–27. IFMBE Proceedings. Cham: Springer International Publishing, 2016.
https://doi.org/10.1007/978-3-319-32703-7_45.