A Web-Based Interactive System for Learning NL to FOL Conversion. - Ioannis Hatzilygeroudis; Isidoros Perikos (KES IIMSS, 2009)

An Example-Tracing Tutor for Teaching NL to FOL Conversion. - Themistoklis Chronopoulos; Isidoros Perikos; Ioannis Hatzilygeroudis (AIAI, 2010)

Teaching Aspects of Constraint Satisfaction Algorithms Via a Game. - Ioannis Hatzilygeroudis; Foteini Grivokostopoulou; Isidoros Perikos (EAAI, 2012)

Assistant Tools for Teaching FOL to CF Conversion. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (AIAI (1), 2012)

An Intelligent Tutoring System for Teaching FOL Equivalence. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (AIED Workshops, 2013)

Recognizing Emotion Presence in Natural Language Sentences. - Isidoros Perikos; Ioannis Hatzilygeroudis (EANN (2), 2013)

A Methodology for Evaluation and Knowledge Extraction from On-going Learning Process. - Isidoros Perikos; Panagiotis Angelopoulos; Michael Paraskevas; Thomas Zarouchas; Giannis Tzimas (CSE, 2014)

Conversation Emotional Modeling in Social Networks. - Andreas Kanavos; Isidoros Perikos; Pantelis Vikatos; Ioannis Hatzilygeroudis; Christos Makris 001; Athanasios K. Tsakalidis (ICTAI, 2014)

Modeling ReTweet Diffusion Using Emotional Content. - Andreas Kanavos; Isidoros Perikos; Pantelis Vikatos; Ioannis Hatzilygeroudis; Christos Makris 001; Athanasios K. Tsakalidis (AIAI, 2014)

Recognizing Emotions from Facial Expressions Using Neural Network. - Isidoros Perikos; Epaminondas Ziakopoulos; Ioannis Hatzilygeroudis (AIAI, 2014)

Using Semantic Web Technologies in a Web Based System for Personalized Learning AI Course. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (T4E, 2014)

Teaching assistance and automatic difficulty estimation in converting first order logic to clause form. - Foteini Grivokostopoulou; Ioannis Hatzilygeroudis; Isidoros Perikos (Artif. Intell. Rev., 2014)

Recognize Emotions from Facial Expressions Using a SVM and Neural Network Schema. - Isidoros Perikos; Epaminondas Ziakopoulos; Ioannis Hatzilygeroudis (EANN, 2015)

Teaching Renewable Energy Sources Using 3D Virtual World Technology. - Foteini Grivokostopoulou; Isidoros Perikos; Konstantinos Kovas; Ioannis Hatzilygeroudis (ICALT, 2015)

Estimating the Difficulty of Exercises on Search Algorithms Using a Neuro-Fuzzy Approach. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (ICTAI, 2015)

Embodied coversational agents: A methodology for learning to express facial emotions. - Isidoros Perikos; Ioannis Hatzilygeroudis (IISA, 2015)

A hybrid training framework oriented to computer engineering educators. - Thomas Zarouchas; Isidoros Perikos; Michael Paraskevas; Thedoros Pegiazis (Panhellenic Conference on Informatics, 2015)

Towards detecting emotional communities in Twitter. - Andreas Kanavos; Isidoros Perikos (RCIS, 2015)

Utilizing Social Networks and Web 2.0 Technologies in Education. - Isidoros Perikos; Foteini Grivokostopoulou; Konstantinos Kovas; Ioannis Hatzilygeroudis (T4E, 2015)

A Case-Based Reasoning Approach to Convert Natural Language into First Order Logic. - Isidoros Perikos; Ioannis Hatzilygeroudis (CSE/EUC/DCABES, 2016)

An Educational Game for Teaching Search Algorithms. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (CSEDU (2), 2016)

Exploring the Educational Capabilities of Social Media in High Schools. - Isidoros Perikos; Foteini Grivokostopoulou; Konstantinos Kovas; Ioannis Hatzilygeroudis (CSEDU (2), 2016)

Learning Approaches in a 3D Virtual Environment for Learning Energy Generation from Renewable Sources. - Foteini Grivokostopoulou; Isidoros Perikos; Konstantinos Kovas; Ioannis Hatzilygeroudis (FLAIRS, 2016)

A methodology for generating natural language paraphrases. - Isidoros Perikos; Ioannis Hatzilygeroudis (IISA, 2016)

Educational capabilities of a novel teleconference service integrated into the Greek school community. - Isidoros Perikos; Vasileios Gkamas; Thomas Zarouchas; Michael Paraskevas (PCI, 2016)

Sentiment Analysis for the Greek Language. - Nikolaos Spatiotis; Iosif Mporas; Michael Paraskevas; Isidoros Perikos (PCI, 2016)

An Innovative Educational Environment Based on Virtual Reality and Gamification for Learning Search Algorithms. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (T4E, 2016)

Integrating User's Emotional Behavior for Community Detection in Social Networks. - Andreas Kanavos; Isidoros Perikos; Ioannis Hatzilygeroudis; Athanasios K. Tsakalidis (WEBIST (1), 2016)

A Classifier Ensemble Approach to Detect Emotions Polarity in Social Media. - Isidoros Perikos; Ioannis Hatzilygeroudis (WEBIST (1), 2016)

Recognizing emotions in text using ensemble of classifiers. - Isidoros Perikos; Ioannis Hatzilygeroudis (Eng. Appl. Artif. Intell., 2016)

Automatic estimation of exercises' difficulty levels in a tutoring system for teaching the conversion of natural language into first-order logic. - Isidoros Perikos; Foteini Grivokostopoulou; Konstantinos Kovas; Ioannis Hatzilygeroudis (Expert Syst. J. Knowl. Eng., 2016)

Aspect based sentiment analysis in social media with classifier ensembles. - Isidoros Perikos; Ioannis Hatzilygeroudis (ICIS, 2017)

Examining the Efficiency of Feedback Types in a Virtual Reality Educational Environment for Learning Search Algorithms. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (BFAL, 2017)

A Collaborative Game for Learning Algorithms. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (CSEDU (1), 2017)

Examining the Impact of Feature Selection on Sentiment Analysis for the Greek Language. - Nikolaos Spatiotis; Michael Paraskevas; Isidoros Perikos; Iosif Mporas (SPECOM, 2017)

Utilizing virtual reality to assist students in learning physics. - Foteini Grivokostopoulou; Isidoros Perikos; Konstantinos Kovas; Michael Paraskevas; Ioannis Hatzilygeroudis (TALE, 2017)

A System for Aspect-based Opinion Mining of Hotel Reviews. - Isidoros Perikos; Konstantinos Kovas; Foteini Grivokostopoulou; Ioannis Hatzilygeroudis (WEBIST, 2017)

An Educational System for Learning Search Algorithms and Automatically Assessing Student Performance. - Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatzilygeroudis (Int. J. Artif. Intell. Educ., 2017)

Assistance and Feedback Mechanism in an Intelligent Tutoring System for Teaching Conversion of Natural Language into Logic. - Isidoros Perikos; Foteini Grivokostopoulou; Ioannis Hatzilygeroudis (Int. J. Artif. Intell. Educ., 2017)

Facial Expression Recognition Using Adaptive Neuro-fuzzy Inference Systems. - Isidoros Perikos; Michael Paraskevas; Ioannis Hatzilygeroudis (ICIS, 2018)

A Framework for Analyzing Big Social Data and Modelling Emotions in Social Media. - Isidoros Perikos; Ioannis Hatzilygeroudis (BigDataService, 2018)

Opinion Mining and Visualization of Online Users Reviews: A Case Study in Booking.com. - Isidoros Perikos; Argyro Tsirtsi; Konstantinos Kovas; Foteini Grivokostopoulou; Ioannis Daramouskas; Ioannis Hatzilygeroudis (IISA, 2018)

Evaluation of an Educational Training Platform Using Text Mining. - Nikolaos Spatiotis; Isidoros Perikos; Iosif Mporas; Michael Paraskevas (SETN, 2018)

Examining the Impact of Pedagogical Agents on Students Learning Experience in Virtual Worlds. - Foteini Grivokostopoulou; Michael Paraskevas; Isidoros Perikos; Sasha Nikolic; Konstantinos Kovas; Ioannis Hatzilygeroudis (TALE, 2018)

Emotional community detection in social networks. - Andreas Kanavos; Isidoros Perikos; Ioannis Hatzilygeroudis; Athanasios K. Tsakalidis (Comput. Electr. Eng., 2018)

An Ontology-based Approach for User Modelling and Personalization in E-Learning Systems. - Foteini Grivokostopoulou; Isidoros Perikos; Michael Paraskevas; Ioannis Hatzilygeroudis (ICIS, 2019)

Hidden Markov Models for Sentiment Analysis in Social Media. - Isidoros Perikos; Spyridon Kardakis; Michael Paraskevas; Ioannis Hatzilygeroudis (BCD, 2019)

Learning outcomes design for Data Science and Internet of Things training programs. - Vasileios Gkamas; Maria Rigou; Isidoros Perikos; Ivaylo Gueorguiev; Pavel Varbanov; Christina Todorova (IISA, 2019)

Pigmented Skin Lesions Classification Using Data Driven Subsets of Image Features. - Iosif Mporas; Isidoros Perikos; Michael Paraskevas (IISA, 2019)

Examining the Impact of Discretization Technique on Sentiment Analysis for the Greek Language. - Nikolaos Spatiotis; Isidoros Perikos; Iosif Mporas; Michael Paraskevas (IISA, 2019)

Editorial. - Foteini Grivokostopoulou; Ioannis Hatzilygeroudis; Isidoros Perikos (Int. J. Artif. Intell. Tools, 2019)

Eye Gaze Analysis of Students in Educational Systems. - Panteleimon-Evangelos Aivaliotis; Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Daramouskas; Ioannis Hatziligeroudis (IISA, 2020)

Deep Learning Methods in Medical Imaging for the Recognition of Breast Cancer. - Antonios Matzakos Chorianopoulos; Ioannis Daramouskas; Isidoros Perikos; Foteini Grivokostopoulou; Ioannis Hatzilygeroudis (IISA, 2020)

A Methodology For Drones to Learn How to Navigate And Avoid Obstacles Using Decision Trees. - Ioannis Daramouskas; Isidoros Perikos; Ioannis Hatzilygeroudis; Vaios J. Lappas; Vasilios Kostopoulos (IISA, 2020)

A Virtual Reality Platform for Learning Aspects of Entrepreneurship. - Konstantinos Kovas; Foteini Grivokostopoulou; Isidoros Perikos; Ioannis Hatziligeroudis (IISA, 2020)

Sentiment Analysis of Teachers Using Social Information in Educational Platform Environments. - Nikolaos Spatiotis; Isidoros Perikos; Iosif Mporas; Michael Paraskevas (Int. J. Artif. Intell. Tools, 2020)

Machine Learning Basics. - Konstantinos I. Chatzilygeroudis; Ioannis Hatzilygeroudis; Isidoros Perikos (Intelligent Computing for Interactive System Design, 2021)

Emotion Recognition using Deep Learning Techniques and Word Embeddings. - Spyridon Kardakis; Isidoros Perikos; Foteini Grivokostopoulou; Michael Paraskevas (BCD, 2021)

A Factoid based Question Answering System based on Dependency Analysis and Wikidata. - Thomas Ploumis; Isidoros Perikos; Foteini Grivokostopoulou; Ioannis Hatzilygeroudis (IISA, 2021)

Sentiment analysis using novel and interpretable architectures of Hidden Markov Models. - Isidoros Perikos; Spyridon Kardakis; Ioannis Hatzilygeroudis (Knowl. Based Syst., 2021)

A Survey on Tie Strength Estimation Methods in Online Social Networks. - Isidoros Perikos; Loizos Michael (ICAART (3), 2022)

Text Analysis and Recognition of Emotional Content Using Deep Learning Methods and BERT. - Efthymios Andrikakis; Isidoros Perikos; Michael Paraskevas; Ioannis Hatzilygeroudis (ICIS, 2023)

Zero-Shot Sentiment Analysis Exploring BART Models. - Konstantinos Kyritsis; Isidoros Perikos; Michael Paraskevas (BCD, 2023)

Analysis of data from UAVs for surveillance and threat identification in maritime areas. - Fotis Lampropoulos; Ioannis Daramouskas; Isidoros Perikos; Michael Paraskevas (BCD, 2023)

Sensitive Content Recognition in Social Interaction Messages (Short Paper). - Isidoros Perikos; Loizos Michael (HHAI Workshops, 2023)

Using Siamese BiLSTM Models for Identifying Text Semantic Similarity. - Georgios Fradelos; Isidoros Perikos; Ioannis Hatzilygeroudis (AIAI (Workshops), 2023)

Handwritten Word Recognition Using Deep Learning Methods. - Vasileios Lagios; Isidoros Perikos; Ioannis Hatzilygeroudis (AIAI (Workshops), 2023)

Sentiment Analysis with the Use of Transformers and BERT. - Elisavet Douka; Isidoros Perikos; Ioannis Hatzilygeroudis (IISA, 2023)

Special issue on information, intelligence, systems and applications. - Ioannis Hatzilygeroudis; George A. Tsihrintzis; Maria Virvou; Isidoros Perikos (Neural Comput. Appl., 2023)

Real-time multiple object tracking using deep learning methods. - Dimitrios Meimetis; Ioannis Daramouskas; Isidoros Perikos; Ioannis Hatzilygeroudis (Neural Comput. Appl., 2023)

Transformer-Based Embeddings for Greek Language Categorization. - Charalampos M. Liapis; Konstantinos Kyritsis; Isidoros Perikos; Michael Paraskevas (ICIS, 2024)

Explainable Emotion Recognition in Social Networks with Transformers. - Isidoros Perikos; Chara Pylarinou (ICIS, 2024)

Sensitive Content Detection in Social Networks Using Deep Learning Models and Explainability Techniques. - Isidoros Perikos (BCD, 2024)

A Comparative Analysis of Transformer Models in Zero-Shot Text Classification. - Konstantinos Kyritsis; Charalampos M. Liapis; Nikolaos Spatiotis; Isidoros Perikos; Michael Paraskevas (IISA, 2024)

Implementing a Robust and Scalable Detect-and-Avoid Algorithm for UAV Navigation in ROS. - Dimitrios Meimetis; Ioannis Daramouskas; Vaios Lappas; Isidoros Perikos; Vaggelis Kapoulas; Michael Paraskevas (IISA, 2024)

Analysis of the Performance of Transformers and Ensemble Schemes for Twitter US Airlines Sentiment Analysis. - Konstantinos Kyritsis; Isidoros Perikos; Charalampos M. Liapis; Vaggelis Kapoulas; Michael Paraskevas (PCI, 2024)

A Convolutionaly-Informed XLM-RoBERTa for Classifying Short Text Inquires in Greek School Network. - Charalampos M. Liapis; Isidoros Perikos; Konstantinos Kyritsis; Vaggelis Kapoulas; Michael Paraskevas (PCI, 2024)

A Hybrid Ensemble Approach for Greek Text Classification Based on Multilingual Models. - Charalampos M. Liapis; Konstantinos Kyritsis; Isidoros Perikos; Nikolaos Spatiotis; Michael Paraskevas (Big Data Cogn. Comput., 2024)

Explainable Aspect-Based Sentiment Analysis Using Transformer Models. - Isidoros Perikos; Athanasios Diamantopoulos (Big Data Cogn. Comput., 2024)