Publications

Books

1. S. Manoharan, Alexandru Tugui, Isidoros Perikos, Proceedings of 6th International Conference on Artificial Intelligence and Smart Energy, Springer, 2026 (https://link.springer.com/book/9783032235435).
2. S. Manoharan, Alexandru Tugui, Isidoros Perikos, Proceedings of 5th International Conference on Artificial Intelligence and Smart Energy, Springer, 2025 (https://link.springer.com/book/9783031904776).
3. Vrince Vimal, Isidoros Perikos, Amrit Mukherjee, Vincenzo Piuri, Multi-Strategy Learning Environment, Springer, 2024 (https://link.springer.com/book/9789819714872).
4. Jennifer S. Raj, Isidoros Perikos, Valentina Emilia Balas, Intelligent Sustainable Systems, Springer, 2023 (https://link.springer.com/book/10.1007/978-981-99-1726-6).
5. P. Karuppusamy, Isidoros Perikos, FPG Márquez, Ubiquitous Intelligent Systems, Springer, 2022 (https://link.springer.com/book/10.1007/978-981-16-3675-2).
6. Jennifer S. Raj, Ram Palanisamy, Isidoros Perikos, Yong Shi, Intelligent Sustainable Systems, Springer, 2022 (https://link.springer.com/book/10.1007/978-981-16-2422-3).
7. P. Karrupusamy, Isidoros Perikos, Fuqian Shi and Tu Nguyen, Sustainable Communication Networks and Application, Springer, 2021 (https://www.springer.com/gp/book/9789811586767).
8. Ioannis Hatzilygeroudis, Isidoros Perikos and Foteini Grivokostopoulou, Advances in Integrations of Intelligent Methods, Smart Innovation, Systems and Technologies, Springer, 2020 (https://www.springer.com/gp/book/9789811519178).

Journals

1. Isidoros Perikos and Theodoros Kontopoulos, “Explainable Context-Aware Emotion Recognition in Conversations Through Attribution Analysis, Layer-Wise Probing and Representation Geometry”, IEEE Access, 2026. [DOI]
2. Athanasios Christopoulos, Stylianos Mystakidis, Isidoros Perikos, Aikaterini Bourazeri, Andria Michael, Mikko-Jussi Laakso, “The Thinking Behind the Prompt: Evidence from Collaborative Student Problem Solving with Generative Artificial Intelligence”, Applied Cognitive Psychology, Wiley, 2026. [DOI]
3. Athanasios Christopoulos, Stylianos Mystakidis, Isidoros Perikos, Aikaterini Bourazeri, Andria Michael, Mikko-Jussi Laakso, “How does collaborative prompting behaviour develop and relate to effectiveness in problem-solving with Generative Artificial Intelligence?”, Computers in Human Behavior: Artificial Humans, Elsevier, 9, 100378, 2026. [DOI]
4. Athanasios Christopoulos, Stylianos Mystakidis and Isidoros Perikos, “Digital Chemistry Laboratories: A Systematic Review of Immersive Technologies in Secondary Education”, Social Sciences & Humanities Open, Elsevier, 14, 103268, 2026. [DOI]
5. Georgios Sigalos, Ioannis Hatzilygeroudis and Isidoros Perikos, “Deep Learning for Age and Gender Recognition from Facial Images: A Comparative Study of EfficientNet Variants with Explainability”, Information, 17, 567, 2026. [DOI]
6. Konstantinos Kyritsis, Charalampos Liapis, Isidoros Perikos, Michael Paraskevas, and Vaggelis Kapoulas, “From Transformers to Voting Ensembles for Interpretable Sentiment Classification: A Comprehensive Comparison”, Computers, 14(5), 167, 2025. [DOI]
7. Maria Rigou, Vasileios Gkamas, Isidoros Perikos, Konstantinos Kovas and Polyxeni Kontodiakou, “Utilizing Virtual Worlds for Training Professionals: The Case of Soft Skills Training of Smart City Engineers and Technicians”, Computers, 14(6), 206, 2025. [DOI]
8. Isidoros Perikos, Spyros Soulis, “Natural Language Inference with Transformer Ensembles and Explainability Techniques”, Electronics, 13(19), 3876, 2024. [DOI]
9. Charalampos M. Liapis, Isidoros Perikos, Konstantinos Kyritsis, Nikolaos Spatiotis and Michael Paraskevas, “A Hybrid Ensemble Approach for Greek Text Classification Based on Multilingual Models”, Big Data and Cognitive Computing, 8, 137, 2024. [DOI]
10. Isidoros Perikos, Athanasios Diamantopoulos, “Explainable Aspect-Based Sentiment Analysis using Transformer Models”, Big Data and Cognitive Computing, 8(11), 141, 2024. [DOI]
11. Ioannis Daramouskas, Isidoros Perikos, Michael Paraskevas, Vaios Lappas and Vaggelis Kapoulas, “Performance analysis for TDOA localization in LoRa networks”, Smart Cities, 7(5), pp. 2514–2541, 2024. [DOI]
12. Konstantinos Mountzouris, Isidoros Perikos and Ioannis Hatzilygeroudis, “Speech Emotion Recognition Using Convolutional Neural Networks with Attention Mechanism”, Electronics, 12(20), 4376, 2023. [DOI]
13. Natalia Nikolopoulou, Isidoros Perikos, Ioannis Daramouskas, Christos Makris and Ioannis Hatzilygeroudis, “A Convolutional Autoencoder Approach for Boosting the Specificity of Retinal Blood Vessels Segmentation”, Applied Sciences, 13(5), 3255, 2023. [DOI]
14. Petros Eleftheriadis, Isidoros Perikos and Ioannis Hatzilygeroudis, “Evaluating Deep Learning Techniques for Natural Language Inference”, Applied Sciences, 13(4), 2577, 2023. [DOI]
15. Dimitrios Meimetis, Ioannis Daramouskas, Isidoros Perikos and Ioannis Hatzilygeroudis, “Real-time Multiple Object Tracking Using Deep Learning Methods”, Neural Computing and Applications, 35(1), pp. 89–118, Springer, 2023. [DOI]
16. Ioannis Hatzilygeroudis, George Tsihrintzis, Maria Virvou, and Isidoros Perikos, “Special issue on Information, Intelligence, Systems and Applications”, Neural Computing and Applications, pp. 1–2, 2023. [DOI]
17. Ioannis Kousis, Isidoros Perikos, Ioannis Hatzilygeroudis and Maria Virvou, “Deep Learning Methods for Accurate Skin Cancer Recognition and Mobile Application”, Electronics, 11(9), 1294, 2022. [DOI]
18. Vaios Ampelakiotis, Isidoros Perikos, Ioannis Hatzilygeroudis and Georgios Tsihrintzis, “Optical Recognition of Handwritten Logic Formulas Using Neural Networks”, Electronics, 10(22), 2761, 2021. [DOI]
19. Isidoros Perikos, Spyridon Kardakis and Ioannis Hatzilygeroudis, “Sentiment Analysis using novel and interpretable architectures of Hidden Markov Models”, Knowledge-based Systems, 229, 107332, Elsevier, 2021. [DOI]
20. Spyridon Kardakis, Isidoros Perikos, Foteini Grivokostopoulou and Ioannis Hatzilygeroudis, “Examining Attention Mechanisms in Deep Neural Models for Sentiment Analysis”, Applied Sciences, 11(9), 3883, 2021. [DOI]
21. Iosif Mporas, Isidoros Perikos, Vasileios Kelefouras and Michael Paraskevas, “Illegal Logging Detection Based on Acoustic Surveillance of Forest”, Applied Sciences, 10(20), 7379, 2020. [DOI]
22. Foteini Grivokostopoulou, Konstantinos Kovas and Isidoros Perikos, “The Effectiveness of Virtual Pedagogical Agents and their Impact on Students Learning in Virtual Worlds”, Applied Sciences, 10(5), 1739, 2020. [DOI]
23. Nikolaos Spatiotis, Isidoros Perikos, Iosif Mporas and Michael Paraskevas, “Sentiment Analysis of Teachers Using Social Information in Educational Platform Environments”, International Journal on Artificial Intelligent Tools (IJAIT), 29(02), 2040004, 2020. [DOI]
24. Foteini Grivokostopoulou, Ioannis Hatzilygeroudis and Isidoros Perikos, Editorial, “Artificial Intelligence in Education: Methods, Systems and Applications - Editorial”, International Journal of Artificial Intelligence Tools (IJAIT), Volume 28, Issue 04, 2019. [DOI]
25. Foteini Grivokostopoulou, Konstantinos Kovas and Isidoros Perikos, “Examining the Impact of a Gamified Entrepreneurship Education Framework in Higher Education”, Sustainability, 11(20), 5623, 2019. [DOI]
26. Andreas Kanavos, Isidoros Perikos, Ioannis Hatzilygeroudis and Athanasios Tsakalidis, “Emotional Community Detection in Social Networks”, International Journal of Computers & Electrical Engineering, Vol. 65, pp. 449–460, Elsevier, 2018. [DOI]
27. Isidoros Perikos, Foteini Grivokostopoulou and Ioannis Hatzilygeroudis, “Assistance and Feedback Mechanism in an Intelligent Tutoring System for Teaching Conversion of Natural Language into Logic”, International Journal of Artificial Intelligence in Education (IJAIED), 27(3), pp. 475–514, Springer, 2017. [DOI]
28. Foteini Grivokostopoulou, Isidoros Perikos and Ioannis Hatzilygeroudis, “An Educational System for Learning Search Algorithms and Automatically Assessing Student Performance”, International Journal of Artificial Intelligence in Education (IJAIED), 27(1), pp. 207–240, Springer, 2017. [DOI]
29. Isidoros Perikos and Ioannis Hatzilygeroudis, “Recognizing Emotions in Text Using Ensemble of Classifiers”, International Journal of Engineering Applications of Artificial Intelligence (EAAI), 51, pp. 191–201, Elsevier, 2016. [DOI]
30. Isidoros Perikos, Foteini Grivokostopoulou, Konstantinos Kovas and Ioannis Hatzilygeroudis, “Automatic estimation of exercises' difficulty levels in a tutoring system for teaching the conversion of natural language into first‐order logic”, Expert Systems (EXSY), 33(6), pp. 569–580, 2016. [DOI]
31. Michael Paraskevas, Thomas Zarouchas, Panagiotis Angelopoulos, Isidoros Perikos, “Formulating an adaptable e-training framework to computer science educators”, International Journal of Continuing Engineering Education and Life-Long Learning (IJCEELL), Vol. 25, No. 2, pp. 151–173, 2015. [DOI]
32. Foteini Grivokostopoulou, Ioannis Hatzilygeroudis, Isidoros Perikos, “Teaching assistance and automatic difficulty estimation in converting first order logic to clause form”, Artificial Intelligence Review, Springer, Vol. 42, Issue 3, pp. 347–367, 2014. [DOI]
33. Themistoklis Chronopoulos, Ioannis Hatzilygeroudis, Isidoros Perikos, Konstantinos Kovas, “A web-based example-tracing tutor for building sentences in First Order Logic”, International Journal of Engineering Intelligent Systems, CRL Publishing, 2010, Vol. 18, Nos. 3/4 September/December 2010. [PDF]

Book Chapters

1. Konstantinos Kyritsis, Charalampos M. Liapis, Isidoros Perikos and Michael Paraskevas, “Explainable Sentiment Analysis Utilizing Deep Learning Methods and LIME”, Big Data and Data Science Engineering, Studies in Computational Intelligence, Springer, 2025. [DOI]
2. Konstantinos Kyritsis, Nikolaos Spatiotis, Isidoros Perikos and Michael Paraskevas, “A Comparative Performance Evaluation of Algorithms for the Analysis and Recognition of Emotional Content”, Advances in Sentiment Analysis - Techniques, Applications, and Challenges, 2023. [DOI]
3. Spyridon Kardakis, Isidoros Perikos, Foteini Grivokostopoulou and Michael Paraskevas, “Facial Expression Recognition using Deep Learning Methods”, Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, Studies in Computational Intelligence, Vol. 1012, pp. 174–188, Springer. [DOI]
4. Ioannis Daramouskas, Vaggelis Kapoulas, Dimitrios Mitroulias, Isidoros Perikos and Michael Paraskevas, “Localization in LoRa Networks Based on Time Difference of Arrival”, In Computer and Information Science, Studies in Computational Intelligence Series, pp. 130–143, Springer, 2022. [DOI]
5. Konstantinos Chatzilygeroudis, Isidoros Perikos and Ioannis Hatzilygeroudis, “Machine Learning Basics”, In ACM Intelligent Computing for Interactive System Design: Statistics, Digital Signal Processing and Machine Learning in Practice, pp. 143–193, ACM, 2021. [DOI]
6. Iosif Mporas, Isidoros Perikos and Michael Paraskevas, “Color Models for Skin Lesions Classification from Dermatoscopic Images”, Advances in Integrations of Intelligent Methods, Smart Innovation, Systems and Technologies, pp. 85–98, Springer, 2020. [DOI]
7. Panagiotis Giannopoulos, Isidoros Perikos and Ioannis Hatzilygeroudis, “Deep Learning Approaches for Facial Emotion Recognition: A Case Study on FER-2013”, In Advances in Combining Intelligent Methods, pp. 1–16, Springer, 2018. [DOI]
8. Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “Difficulty Estimation of Exercises on Tree-Based Search Algorithms Using Neuro-Fuzzy and Neuro-Symbolic Approaches”, In Hatzilygeroudis I., Palade V., Prentzas J. (eds.), Advances in Combining Intelligent Methods, Intelligent Systems Reference Library, Vol. 116, Springer, pp. 75–91, 2017. [DOI]
9. Foteini Grivokostopoulou, Ioannis Hatzilygeroudis, Isidoros Perikos, “An intelligent system for learning first order logic to clause form conversion”, Multicultural Awareness and Technology in Higher Education: Global Perspectives, pp. 265–284, 2014. [DOI]

Conferences

2026

96. Ion Bournakas, Dimitris Meimetis, Isidoros Perikos, Vaggelis Kapoulas and Michael Paraskevas, “The Impact of Numerical Precision on Transformer-Based Multiple Object Tracking”, IEEE International Conference on Control Science and Systems Engineering (IEEE ICCSSE), Wuhan, China, 2026.
97. Isidoros Perikos, Nikolaos Spatiotis, Konstantinos Kyritsis, Charalampos M. Liapis, Vaggelis Kapoula and Michael Paraskevas, “Examining the Impact of Text Readability Complexity on QLoRA Fine-Tuning of LLMs for Sentiment Classification”, IEEE International Conference on Future Machine Learning and Data Science (IEEE FMLDS), Kobe, Japan, 2026.
98. Ioannis Daramouskas, Isidoros Perikos, Vaios Lappas, Vasilios Kostopoulos, Vaggelis Kapoulas and Michael Paraskevas “A Novel Real-Time Multi-Object Tracker for UAVs”, IEEE International Conference on Future Machine Learning and Data Science (IEEE FMLDS), Kobe, Japan, 2026.
99. Isidoros Perikos, Theodoros Kontopoulos, Vaggelis Kapoulas and Michael Paraskevas, “Explainable Emotion Recognition in Conversations with Context-Aware Transformer Models”, IEEE International Conference on Computer and Information Science, (IEEE ICIS), USA, 2026.
100. Konstantinos Kyritsis, Isidoros Perikos, Charalampos M. Liapis, Vaggelis Kapoulas, Michael Paraskevas, “Towards Complexity-Aware Evaluation of Large Language Models in Text Classification”, Pan-Hellenic Conference on Progress in Computing and Informatics (PCI 2026), Athens, Greece, 2026. [DOI]

2025

91. George Sigalos, Ioannis Hatzilygeroudis, Isidoros Perikos, “Age and Gender Recognition from Images Using EfficientNet Models”, International Conference on Information, Intelligence, Systems and Applications (IISA 2025), Greece, 2025. [DOI]
92. Nikolaos Margaris, Ioannis Daramouskas, Isidoros Perikos, Vaggelis Kapoulas and Michael Paraskevas, “Parking Space Detection Using UAV-Based Detection and YOLO in Smart Cities”, IEEE 23rd International Conference on Software Engineering Research, Management and Applications (IEEE SERA 2025). [DOI]

2024

89. Konstantinos Kyritsis, Isidoros Perikos, Charalampos M. Liapis, Vaggelis Kapoulas and Michael Paraskevas, “Analysis of the Performance of Transformers and Ensemble Schemes for Twitter US Airlines Sentiment Analysis”, Pan-Hellenic Conference on Progress in Computing and Informatics, (PCI 2024), Athens, Greece, 2024. [DOI]
90. Charalampos M. Liapis, Isidoros Perikos, Konstantinos Kyritsis, Vaggelis Kapoulas and Michael Paraskevas, “A Convolutionaly-Informed XLM-RoBERTa for Classifying Short Text Inquires in Greek School Network”, Pan-Hellenic Conference on Progress in Computing and Informatics, (PCI 2024), Athens, Greece, 2024. [DOI]
91. Isidoros Perikos, Ioannis Kollias and Michael Paraskevas, “Explainable Facial Emotion Recognition with the use of Vision Transformers”, International Conference on Systems Explainability (EXPLAINABILITY 2024), 2024. [DOI]
92. Charalampos Liapis, Konstantinos Kyritsis, Isidoros Perikos and Michael Paraskevas, “Transformer-Based Embeddings for Greek Language Categorization”, IEEE International Conference on Computer and Information Science (IEEE ICIS 2024). [DOI]
93. Isidoros Perikos and Chara Pylarinou, “Explainable Emotion Recognition in Social Networks with Transformers”, IEEE International Conference on Computer and Information Science (IEEE ICIS 2024). [DOI]
94. Isidoros Perikos, “Sensitive Content Detection in Social Networks using Deep Learning Models and Explainability Techniques”, IEEE International Conference on Big Data, Cloud Computing, and Data Science Engineering (IEEE BCD 2024). [DOI]
95. Konstantinos Kyritsis, Charalampos Liapis, Nikolaos Spatiotis, Isidoros Perikos, Michael Paraskevas, “Comparing Pre-trained Transformer Models for Zero-Shot Text Classification”, International Conference on Information, Intelligence, Systems and Applications (IISA 2024), Chania, Greece, 2024. [DOI]
96. Dimitrios Meimetis, Ioannis Daramouskas, Vaios Lappas, Isidoros Perikos, Vaggelis Kapoulas, Michael Paraskevas, “Implementing a Robust and Scalable Detect-and-Avoid Algorithm for UAV Navigation in ROS”, International Conference on Information, Intelligence, Systems and Applications (IISA 2024), Chania, Greece, 2024. [DOI]

2023

81. Fotis Lampropoulos, Ioannis Daramouskas, Isidoros Perikos and Michael Paraskevas, “Analysis of data from UAVs for surveillance and threat identification in maritime areas”, IEEE International Conference on Big Data, Cloud Computing, and Data Science Engineering (IEEE BCD 2023), Vietnam, 2023. [DOI]
82. Konstantinos Kyritsis, Isidoros Perikos and Michael Paraskevas, “Zero-Shot Sentiment Analysis Exploring BART Models”, IEEE International Conference on Big Data, Cloud Computing, and Data Science Engineering (IEEE BCD 2023), Vietnam, 2023. [DOI]
83. Spyridon Vollas, Isidoros Perikos and Michael Paraskevas, “Skin Lesion Segmentation and Classification using Deep Learning Methods”, International Conference on Smart Portable, Wearable, Implantable and Disability-oriented Devices and Systems, (SPWID 2023), 26-30 June 2023, Nice, France, 2023, BEST PAPER AWARD. [PDF]
84. Elisavet Douka, Isidoros Perikos and Ioannis Hatzilygeroudis, “Sentiment Analysis with the Use of Transformers and BERT”, International Conference on Information, Intelligence, Systems and Applications (IISA 2023), 10-12 July Volos, Greece, 2023. [DOI]
85. Georgios Fradelos, Isidoros Perikos and Ioannis Hatzilygeroudis, “Using Siamese BiLSTM Models for Identifying Text Semantic Similarity”, International Conference on Artificial Intelligence Applications and Innovations (AIAI 2023). [DOI]
86. Vasileios Lagios, Isidoros Perikos and Ioannis Hatzilygeroudis, “Handwritten Word Recognition Using Deep Learning Methods”, International Conference on Artificial Intelligence Applications and Innovations (AIAI 2023). [DOI]
87. Efthymios Andrikakis, Isidoros Perikos, Michael Paraskevas and Ioannis Hatzilygeroudis, “Text Analysis and Recognition of Emotional Content Using Deep Learning Methods and BERT”, IEEE International Conference on Computer and Information Science (IEEE ICIS 2023). [DOI]

2022

74. Isidoros Perikos and Loizos Michael, “A Survey on Tie Strength Estimation Methods in Online Social Networks”, International Conference on Agents and Artificial Intelligence (ICAART 2022), Vol. 3, pp. 484–491, 2022. [DOI]

2021

73. Thomas Ploumis, Isidoros Perikos, Foteini Grivokostopoulou and Ioannis Hatzilygeroudis, “A Factoid based Question Answering System based on Dependency Analysis and Wikidata”, International Conference on Information, Intelligence, Systems and Applications (IISA 2021), 15-17 July Chania, Greece, 2021. [DOI]
74. Isidoros Perikos, Spyridon Kardakis, Foteini Grivokostopoulou and Michael Paraskevas, “Emotion Recognition using Deep Learning techniques and Word Embeddings”, IEEE International Conference on Big Data, Cloud Computing, and Data Science Engineering (IEEE BCD 2021). [DOI]
75. Foteini Grivokostopoulou, Isidoros Perikos, Zuzana Palkova, Ivana Kardum, Kostas Kovas, and Ioannis Hatzilygeroudis, “Virtual Reality in Agriculture: An Innovative Framework for Learning Entrepreneurship”, 15th annual International Technology, Education and Development Conference (INTED 2021). [DOI]
76. Foteini Grivokostopoulou, Isidoros Perikos, Kostas Kovas and Konstantinos Koutsojannis, “Towards a Framework to ehnance the Digital Skills of Health Professionals”, 15th annual International Technology, Education and Development Conference (INTED 2021). [DOI]

2020

69. Antonios Matzakos Chorianopoulos, Ioannis Daramouskas, Isidoros Perikos, Foteini Grivokostopoulou and Ioannis Hatzilygeroudis, “Deep Learning Methods in Medical Imaging for the Recognition of Breast Cancer”, International Conference on Information, Intelligence, Systems and Applications (IISA 2020), 15-17 July Piraeus, Greece, 2020. [DOI]
70. Ioannis Daramouskas, Isidoros Perikos, Ioannis Hatzilygeroudis, Vaios J. Lappas and Vasilios Kostopoulos, “A Methodology for Drones to Learn How to Navigate and Avoid Obstacles Using Decision Trees”, International Conference on Information, Intelligence, Systems and Applications (IISA 2020), 15-17 July Piraeus, Greece, 2020. [DOI]
71. Panteleimon-Evangelos Aivaliotis, Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Daramouskas and Ioannis Hatzilygeroudis, “Eye Gaze Analysis of Learners in Educational Systems”, International Conference on Information, Intelligence, Systems and Applications (IISA 2020), 15-17 July Piraeus, Greece, 2020. [DOI]
72. Konstantinos Kovas, Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “A Virtual Reality Platform for Learning Aspects of Entrepreneurship”, International Conference on Information, Intelligence, Systems and Applications (IISA 2020), 15-17 July Piraeus, Greece, 2020. [DOI]
73. Foteini Grivokostopoulou, Isidoros Perikos, Michael Paraskevas, and Ioannis Hatzilygeroudis, “Enhancing Youth Entrepreneurship Skills and Competences in Agriculture with a Virtual Reality Platform”, International Conference on Information, Intelligence, Systems and Applications, Project Track, pp. 30–34, 2020. [DOI]
74. Konstantinos Kovas, Isidoros Perikos, Foteini Grivokostopoulou, and Ioannis Hatzilygeroudis, “Biz4Fun, a Virtual 3D World for teaching Entrepreneurship Skills”, International Conference on Information, Intelligence, Systems and Applications, Project Track, pp. 16–19, 2020. [DOI]

2019

63. Isidoros Perikos, Spyridon Kardakis, Michael Paraskevas and Ioannis Hatzilygeroudis, “Hidden Markov Models for Sentiment Analysis in Social Media”, IEEE International Conference on Big Data, Cloud Computing and Data Science (IEEE BCD 2019), 29-31 May, Honolulu, Hawaii, 2019. [DOI]
64. Prasitthichai Naronglerdrit, Iosif Mporas, Isidoros Perikos and Michael Paraskevas, “Pigmented Skin Lesions Classification using Convolutional Neural Networks”, International Conference on Biomedical Innovations and Applications, BIA 2019. [DOI]
65. Ioannis Chatzizisis, Isidoros Perikos, Foteini Grivokostopoulou, Konstantinos Kovas and Ioannis Hatzilygeroudis, “Developing a Virtual Reality Educational Environment for Traffic Education”, International conference of Education, Research and Innovation (ICERI 2019), Seville, Spain, 2019. [DOI]
66. Isidoros Perikos, Foteini Grivokostopoulou, Konstantinos Kovas and Ioannis Hatzilygeroudis, “An Innovative Educational Environment based on Virtual Reality and Gamification for Learning STEM Entrepreneurship”, International conference of Education, Research and Innovation (ICERI 2019), Seville, Spain, 2019. [DOI]
67. Foteini Grivokostopoulou, Isidoros Perikos, Michael Paraskevas and Ioannis Hatzilygeroudis, “An Ontology-based Approach for User Modelling and Personalization in E-Learning Systems”, IEEE International Conference on Computer and Information Science (IEEE ICIS 2019), 17-19 June, Beijing, China, 2019. [DOI]
68. Vasileios Gkamas, Maria Rigou, Michael Paraskevas, Thomas Zarouchas, Isidoros Perikos, Vasos Vassiliou, I. Gueorguiev, P. Varbanov, G. Sharkov, C. Todorova, A. Sotiropoulou, “Bridging the skills gap in the Data Science and Internet of Things domains: A Vocational Education and Training Curriculum”, 28th ICDE World Conference on Online Learning, 3-7 November, Dublin, Ireland, 2019.
69. Vasileios Gkamas, Maria Rigou, Isidoros Perikos, Ivaylo Gueorguiev, Pavel Varbanov, Christina Todorova, “Learning outcomes design for Data Science and Internet of Things training programs”, International Conference on Information, Intelligence, Systems and Applications (IISA 2019), 15-17 July Patras, Greece, 2019. [DOI]
70. Iosif Mporas, Isidoros Perikos, Michael Paraskevas, “Pigmented Skin Lesions Classification Using Data Driven Subsets of Image Features”, International Conference on Information, Intelligence, Systems and Applications (IISA 2019), Patras, Greece, 2019. [DOI]
71. Nikolaos Spatiotis, Isidoros Perikos, Michael Paraskevas, Iosif Mporas, “Examining the Impact of Discretization Technique on Sentiment Analysis for the Greek Language”, International Conference on Information, Intelligence, Systems and Applications (IISA 2019), Patras, Greece, 2019. [DOI]

2018

54. Foteini Grivokostopoulou, Isidoros Perikos, Konstantinos Kovas, Sasha Nikolic, Michael Paraskevas and Ioannis Hatzilygeroudis, “Examining the Impact of Pedagogical Agents on Students Learning Experience in Virtual Worlds”, IEEE International Conference on Teaching, Assessment, and Learning for Engineering (IEEE TALE 2018), pp. 602–607, 4–7 December, Wollongong, Australia, 2018. [DOI]
55. Isidoros Perikos, Michael Paraskevas and Ioannis Hatzilygeroudis, “Facial Expression Recognition Using Adaptive Neuro-fuzzy Inference Systems”, IEEE International Conference on Computer and Information Science (IEEE ICIS 2018), pp. 1–6, 6-8 June, Singapore, 2018. [DOI]
56. Isidoros Perikos and Ioannis Hatzilygeroudis, “A Framework for Analyzing Big Social Data and Modelling Emotions in Social Media”, IEEE International Conference on Big Data Computing Service and Applications (IEEE BIGDATASERV 2018), pp. 80–84, March 26-29, Bamberg, Germany, 2018. [DOI]
57. Isidoros Perikos, Konstantinos Kovas, Argyro Tsirtsi, Ioannis Daramouskas, Foteini Grivokostopoulou and Ioannis Hatzilygeroudis, “Opinion Mining and Visualization of Online Users Reviews: A Case Study in Booking.com”, International Conference on Information, Intelligence, Systems and Applications (IISA 2018), pp. 1–5, Zante, Greece, 2018. [DOI]
58. Nikolaos Spatiotis, Isidoros Perikos, Iosif Mporas and Michael Paraskevas, “Evaluation of an Educational Training Platform Using Text Mining”, Hellenic Conference on Artificial Intelligence (SETN 2018), 9-13 July Patras, Greece, 2018. [DOI]
59. Z. Palkova, K. Kovas, M. Harnicarova, F. Grivokostopoulou, J. Valicek, I. Perikos, M. Kusnerová, V. Galanis, M. Repka, I. Hatzilygeroudis, “Physics Education - How New Technologies Can Attract It?”, 10th International Conference on Education and New Learning Technologies (EDULEARN 2018), 2-4 July, Mallorca, Spain, 2018. [DOI]
60. Foteini Grivokostopoulou, Isidoros Perikos, Konstantinos Kovas, Michael Paraskevas and Ioannis Hatzilygeroudis, “Formulating an Innovative Training Framework for STEM Entrepreneurship”, International Technology, Education and Development Conference (INTED 2018), 5-7 March, Valencia, Spain, 2018. [DOI]

2017

47. Foteini Grivokostopoulou, Isidoros Perikos, Konstantinos Kovas, Michael Paraskevas and Ioannis Hatzilygeroudis, “Utilizing Virtual Reality to Assist Students in Learning Physics”, IEEE International Conference on Teaching, Assessment, and Learning for Engineering (IEEE TALE 2017), Hong Kong, 2017. [DOI]
48. Isidoros Perikos and Ioannis Hatzilygeroudis, “Aspect based Sentiment Analysis in Social Media with Classifier Ensembles”, IEEE/ACIS International Conference on Computer and Information Science (IEEE ICIS 2017), May 24-26, Wuhan, China, 2017. [DOI]
49. Foteini Grivokostopoulou, Isidoros Perikos and Ioannis Hatzilygeroudis, “Examining the Efficiency of Feedback Types in a Virtual Reality Educational Environment for Learning Search Algorithms”, International Conference on Brain Function Assessment in Learning (BFAL 2017), 24-25 September, Patras, Greece, 2017. [DOI]
50. Nikolaos Spatiotis, Michael Paraskevas, Isidoros Perikos and Iosif Mporas, “Examining the Impact of Feature Selection on Sentiment Analysis for the Greek Language”, 19th International Conference on Speech and Computer (SPECOM 2017), Hertfordshire, UK, 2017. [DOI]
51. Foteini Grivokostopoulou, Isidoros Perikos and Ioannis Hatzilygeroudis, “A Collaborative Game for Learning Algorithms”, International Conference on Computer Supported Education (CSEDU 2017), Porto, Portugal, 2017. [DOI]
52. Isidoros Perikos, Konstantinos Kovas, Foteini Grivokostopoulou and Ioannis Hatzilygeroudis, “A System for Aspect-based Opinion Mining of Hotel Reviews”, International Conference on Web Information Systems and Technologies (WEBIST 2017), Porto, Portugal, 2017. [DOI]

2016

41. Nikolaos Spatiotis, Iosif Mporas, Michael Paraskevas and Isidoros Perikos, “Sentiment Analysis for the Greek Language”, 20th PanHellenic Conference on Informatics (PCI 2016), Patras, Greece, 2016. [DOI]
42. Isidoros Perikos, Zarouchas Thomas, Vasileios Gkamas and Michael Paraskevas, “Educational capabilities of a novel teleconference service integrated into the Greek school community”, 20th PanHellenic Conference on Informatics (PCI 2016), Patras, Greece, 2016. [DOI]
43. Foteini Grivokostopoulou, Isidoros Perikos and Ioannis Hatzilygeroudis, “An Innovative Educational Environment Based on Virtual Reality and Gamification for Learning Search Algorithms”, IEEE International Conference on Technology for Education (IEEE T4E 2016), December 2-4, India, 2016. [DOI]
44. Isidoros Perikos and Ioannis Hatzilygeroudis, “A Case-Based Reasoning Approach to Convert Natural Language into First Order Logic”, IEEE International Conference on Computational Science and Engineering (IEEE CSE 2016), Paris, France, 2016. [DOI]
45. Isidoros Perikos and Ioannis Hatzilygeroudis, “A Methodology for Generating Natural Language Paraphrases”, International Conference on Information, Intelligence, Systems and Applications (IISA 2016), Chalkidiki, Greece, 2016. [DOI]
46. Foteini Grivokostopoulou, Isidoros Perikos, Konstantinos Kovas and Ioannis Hatzilygeroudis, “Learning Approaches in a 3D Virtual Environment for Learning Energy Generation from Renewable Sources”, 29th International FLAIRS Conference (FLAIRS 2016), 16-18 May, Florida, USA, 2016. [PDF]
47. Andreas Kanavos, Isidoros Perikos, Ioannis Hatzilygeroudis and Athanasios Tsakalidis, “Integrating User's Emotional Behavior for Community Detection in Social Networks”, International Conference on Web Information Systems and Technologies (WEBIST 2016), 23-25 April, Rome, Italy, 2016. [DOI]
48. Isidoros Perikos and Ioannis Hatzilygeroudis, “A Classifier Ensemble Approach to Detect Emotions Polarity in Social Media”, International Conference on Web Information Systems and Technologies (WEBIST 2016), 23-25 April, Rome, Italy, 2016. [DOI]
49. Foteini Grivokostopoulou, Isidoros Perikos and Ioannis Hatzilygeroudis, “An Educational Game for Teaching Search Algorithms”, International Conference on Computer Supported Education (CSEDU 2016), 21-23 April, Rome, Italy, 2016. [DOI]
50. Isidoros Perikos, Foteini Grivokostopoulou, Konstantinos Kovas and Ioannis Hatzilygeroudis, “Exploring the Educational Capabilities of Social Media in High Schools”, International Conference on Computer Supported Education (CSEDU 2016), 21-23 April, Rome, Italy, 2016. [DOI]

2015

31. Isidoros Perikos, Foteini Grivokostopoulou, Konstantinos Kovas and Ioannis Hatzilygeroudis, “Utilizing Social Networks and Web 2.0 Technologies in Education”, IEEE International Conference on Technology for Education (IEEE T4E 2015), 10-12 December, India, 2015. [DOI]
32. Foteini Grivokostopoulou, Isidoros Perikos and Ioannis Hatzilygeroudis, “Estimating the Difficulty of Exercises on Search Algorithms using a Neuro-Fuzzy Approach”, IEEE International Conference on Tools with Artificial Intelligence (IEEE ICTAI 2015), Vietri sul Mare, Italy, 2015. [DOI]
33. Thomas Zarouchas, Isidoros Perikos, Michael Paraskevas and Theodoros Pegiazis, “A hybrid training framework oriented to computer engineering educators”, 19th Panhellenic Conference on Informatics (PCI 2015), Athens, Greece, 2015. [DOI]
34. Isidoros Perikos, Epameinondas Ziakopoulos and Ioannis Hatzilygeroudis, “Recognize Emotions from Facial Expressions Using a SVM and Neural Network Schema”, International Conference Engineering Applications of Neural Networks (EANN 2015), Greece, 2015. [DOI]
35. Isidoros Perikos, Foteini Grivokostopoulou, Konstantinos Kovas and Ioannis Hatzilygeroudis, “Assisting Tutors to Utilize WEB 2.0 Tools in Education”, IADIS Multi Conference on Computer Science and Information Systems, Las Palmas, Spain, July 2015.
36. Foteini Grivokostopoulou, Isidoros Perikos, Konstantinos Kovas, Ioannis Hatzilygeroudis, “Teaching Renewable Energy using 3D Virtual Worlds”, IEEE International Conference on Advanced Learning Technologies (IEEE ICALT 2015), Taiwan, July 2015. [DOI]
37. Isidoros Perikos, Ioannis Hatzilygeroudis, “Embodied Conversational Agents: A methodology for Learning to Express Facial Emotions”, International Conference on Information, Intelligence, Systems and Applications (IISA 2015), Corfu, Greece, July 2015. [DOI]
38. Andreas Kanavos, Isidoros Perikos, “Towards Detecting Emotional Communities in Twitter”, IEEE International Conference on Research Challenges in Information Science (IEEE RCIS 2015), Athens, Greece, May 2015. [DOI]

2014

23. Isidoros Perikos, Panagiotis Angelopoulos, Michael Paraskevas, Thomas Zarouchas, Giannis Tzimas, “A Methodology for Evaluation and Knowledge Extraction from On-Going Learning Process”, IEEE International Conferences on Computational Science and Engineering (IEEE CSE 2014), China, December 2014. [DOI]
24. Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “Utilizing Semantic Web Technologies and Data Mining Techniques to Analyze Students Learning and Predict Final Performance”, IEEE International Conference on Teaching, Assessment and Learning for Engineering (IEEE TALE 2014), New Zealand, December 2014. [DOI]
25. Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “Using Semantic Web Technologies in a Web Based System for Personalized Learning AI Course”, IEEE International Conference on Technology for Education (IEEE T4E 2014), 18-21 December, India, 2014. [DOI]
26. Andreas Kanavos, Isidoros Perikos, Pantelis Vikatos, Ioannis Hatzilygeroudis, Christos Makris and Athanasios Tsakalidis, “Conversation Emotional Modelling in Social Networks”, IEEE International Conference on Tools with Artificial Intelligence (IEEE ICTAI 2014), Limassol, Cyprus, November 2014. [DOI]
27. Ioannis Hatzilygeroudis, Foteini Grivokostopoulou, Konstantinos Kovas, Isidoros Perikos, “Applying Social Media in Vocational Education Trainers”, The Open and Flexible Higher Education Conference (EADTU 2014), Krakow, Poland, 2014. [DOI]
28. Michael Paraskevas, Panagiotis Angelopoulos, Thomas Zarouchas and Isidoros Perikos, “A Highly Motivated Blended Learning Model Oriented to Computer Engineering Educators”, IEEE International Conference on Computer Science and Education (IEEE ICCSE 2014), Vancouver, Canada, 2014. [DOI]
29. Isidoros Perikos, Epameinondas Ziakopoulos and Ioannis Hatzilygeroudis, “Recognizing Emotions from Facial Expressions using Neural Network”, IFIP International Conference on Artificial Intelligence Applications and Innovations (AIAI 2014), September 2014, Greece. [DOI]
30. Andreas Kanavos, Isidoros Perikos, Pantelis Vikatos, Ioannis Hatzilygeroudis, Christos Makris and Athanasios Tsakalidis, “Modeling ReTweet Diffusion using Emotional Content”, IFIP International Conference on Artificial Intelligence Applications and Innovations (AIAI 2014), September 2014, Rodos, Greece, 2014. [DOI]

2013

15. Michael Paraskevas, Thomas Zarouchas, Panagiotis Angelopoulos and Isidoros Perikos, “Towards To A Versatile Tele-Education Platform For Computer Science Educators Based On The Greek School Network”, IADIS Multi Conference on Computer Science and Information Systems, Prague, Czech Republic, 2013. [DOI]
16. Isidoros Perikos, Ioannis Hatzilygeroudis, “Recognizing Emotion Presence in Natural Language Sentences”, International Conference Engineering Applications of Neural Networks (EANN 2013), Chalkidiki, Greece, September 2013. [DOI]
17. Ioannis Hatzilygeroudis, Boris Stoyanov, Zuzana Palkova, Foteini Grivokostopoulou, Konstantinos Kovas, Isidoros Perikos, Dorina Popovici, Sorin Ionitescu, “Developing a Hybrid Educational Platform based on Virtual World Learning for Teaching Renewable Energy Domain”, 14-th European Conference on E-Learning/ E-Activities / E-Business / E-Commerce / (E-COMM-LINE 2013), Bucharest, Romania, 2013. [PDF]

2012

12. Isidoros Perikos, Foteini Grivokostopoulou, Ioannis Hatzilygeroudis, “Automatic Marking of NL to FOL Conversions”, IASTED International Conference on Computers and Advanced Technology in Education (CATE 2012), Napoli, Italy, 2012. [DOI]
13. Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “A Web-Based Interactive System for Learning FOL to CF Conversions”, IADIS Multi Conference on Computer Science and Information Systems, Lisbon, Portugal, 2012. [DOI]
14. Ioannis Hatzilygeroudis, Foteini Grivokostopoulou, Isidoros Perikos, “Teaching Aspects of Constraint Satisfaction Algorithms via a Game”, Twenty-Sixth AAAI Conference in Artificial Intelligence (AAAI 2012), Symposium on Educational Advances in Artificial Intelligence, Toronto, Canada, 2012. [DOI]
15. Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “An Automatic Marking System for FOL to CF Conversions”, IEEE International Conference on Teaching, Assessment and Learning for Engineering 2012 (IEEE TALE 2012), pp. H2C-9–H2C-12, Hong Kong, China, 2012. [DOI]
16. Ioannis Hatzilygeroudis, Foteini Grivokostopoulou, Isidoros Perikos, “Using Game-based Learning in Teaching CS Algorithms”, IEEE International Conference on Teaching, Assessment and Learning for Engineering 2012, pp. H1A-7–H1A-9, (IEEE TALE 2012), Hong Kong, 2012. [DOI]
17. Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “Assistant tools for teaching FOL to CF conversion”, IFIP International Conference on Artificial Intelligence Applications and Innovations (AIAI 2012), pp. 306–315, Halkidiki, Greece, 2012. [DOI]

2011

6. Isidoros Perikos, Ioannis Hatzilygeroudis, Foteini Grivokostopoulou, “Teaching Assistant Tools for NL to FOL Conversion”, pp. 337–344, IADIS Multi Conference on Computer Science and Information Systems, Rome, Italy, 2011. [Publisher]
7. Isidoros Perikos, Ioannis Hatzilygeroudis, Foteini Grivokostopoulou, Konstantinos Kovas, “Difficulty Estimator for Translating Natural Language into First Order Logic”, 3rd International Conference on Intelligent Decision Technologies, pp. 135–144, (KES-IDT 2011), Piraeus, Greece, 2011. [DOI]
8. Isidoros Perikos, Ioannis Hatzilygeroudis, Foteini Grivokostopoulou, “Help Generation in a System for Learning Natural Language to First Order Logic Conversion”, IASTED International Conference on Computers and Advanced Technology in Education (CATE 2011), Cambridge, UK, 2011. [DOI]

2010

3. Themistoklis Chronopoulos, Isidoros Perikos, Ioannis Hatzilygeroudis, “An example-tracing tutor for teaching NL to FOL conversion”, 6th IFIP Conference on Artificial Intelligence Applications and Innovations (AIAI 2010), pp. 170–178, Larnaca, Cyprus, 2010. [DOI]
4. Ioannis Hatzilygeroudis, Isidoros Perikos, Konstantinos Kovas, “Web design e-Course in MENUET project - A case study”, 11-th European Conference on E-Learning/ E-Activities / E-Business / E-Commerce / (E-COMM-LINE 2010), Bucharest, Romania, 2010.

2009

1. Isidoros Perikos and Ioannis Hatzilygeroudis, “A Web-Based Interactive System for Learning NL to FOL Conversion”, 2nd International Conference on Intelligent Interactive Multimedia Systems and Services (KES-IIMSS 2009), pp. 297–307, Venice, Italy, 2009. [DOI]

Workshops

1. Isidoros Perikos and Loizos Michael, “Sensitive Content Recognition in Social Interaction Messages”, Workshop on Diversity-Aware Hybrid Human-Artificial Intelligence (DHHAI) International Conference on Hybrid Human Artificial Intelligence (HHAI 2023). [PDF]
2. Ioannis Daramouskas, Isidoros Perikos and Ioannis Hatzilygeroudis, “A Method for Performing Efficient Real-Time Object Tracing for Drones”, 7th International Workshop on Combinations of Intelligent Methods and Applications, 2017. [PDF]
3. Isidoros Perikos and Ioannis Hatzilygeroudis, “Hybrid Approaches to Determine Existence of Emotions in Facial Gestures”, 6th International Workshop on Combinations of Intelligent Methods and Applications, pp. 51–63, 2016. [PDF]
4. Foteini Grivokostopoulou, Isidoros Perikos, Ioannis Hatzilygeroudis, “An Intelligent Tutoring System for Teaching FOL Equivalence”, First Workshop on AI-supported Education for Computer Science (AIEDCS 2013), Memphis, USA, pp. 20–29, July 2013. [PDF]

Greek Conferences

1. Ζαχαρίας Αλεξανδρίδης, Ισίδωρος Περίκος, Φωτεινή Γριβοκωστοπούλου, Ιωάννης Χατζηλυγερούδης, “Αναγνώριση και Επίλυση Εκτυπωμένου προβλήματος Sudoku από το ΝΧΤ Mindstorms”, 2° Πανελλήνιο Συνέδριο Ρομποτικής, ΤΕΕ, Πάτρα, 9-10 Δεκεμβρίου, 2010.

PhD Thesis

Isidoros Perikos, “Techniques for Natural Language Processing, Knowledge Extraction and Automatic Creation of User Adapted Feedback for Intelligent Tutoring Systems”, 2016 (PDF, in Greek).