Creating tutoring characters through a Web-based authoring tool for educational software. - Maria Virvou; Efthimios Alepis (SMC, 2003)

Mobile versus desktop facilities for an e-learning system: users' perspective. - Maria Virvou; Efthymios Alepis (SMC (1), 2004)

Mobile educational features in authoring tools for personalised tutoring. - Maria Virvou; Efthymios Alepis (Comput. Educ., 2005)

User Modelling: An Empirical Study for Affect Perception Through Keyboard and Speech in a Bi-modal User Interface. - Efthymios Alepis; Maria Virvou (AH, 2006)

Affective Student Modeling Based on Microphone and Keyboard User Actions. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (ICALT, 2006)

Emotional Intelligence: Constructing User Stereotypes for Affective Bi-modal Interaction. - Efthymios Alepis; Maria Virvou (KES (1), 2006)

Knowledge Engineering Aspects of Affective Bi-Modal Educational Applications. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (ICETE (Selected Papers), 2007)

Using Mbiui Life-Cycle Framework for an Affective Bi-Modal User Interface . - Katerina Kabassi; Maria Virvou; Efthymios Alepis (ICSOFT (SE), 2007)

Testing the Effectiveness of MBIUI Life-Cycle Framework for the Development of Affective Interfaces. - Katerina Kabassi; Maria Virvou; Efthymios Alepis (ICSOFT/ENASE (Selected Papers), 2007)

Combining Empirical Studies of Audio-Lingual and Visual-Facial Modalities for Emotion Recognition. - Maria Virvou; George A. Tsihrintzis; Efthymios Alepis; Ioanna-Ourania Stathopoulou; Katerina Kabassi (KES (2), 2007)

Knowledge Engineering for Affective Bi-Modal Human-Computer Interaction. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (SIGMAP, 2007)

Development process of an affective bi-modal Intelligent Tutoring System. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (Intell. Decis. Technol., 2007)

Towards Improving Visual-Facial Emotion Recognition through Use of Complementary Keyboard-Stroke Pattern Information. - George A. Tsihrintzis; Maria Virvou; Efthymios Alepis; Ioanna-Ourania Stathopoulou (ITNG, 2008)

Knowledge Engineering for Affective Bi-Modal Interaction in Mobile Devices. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (JCKBSE, 2008)

Designing a multi-modal affective knowledge-based user interface: combining empirical studies. - Maria Virvou; George A. Tsihrintzis; Efthymios Alepis; Ioanna-Ourania Stathopoulou (JCKBSE, 2008)

Multi-Attribute Decision Making for Affective Bi-modal Interaction in Mobile Devices. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (SIGMAP, 2008)

On Improving Visual-Facial Emotion Recognition with Audio-lingual and Keyboard Stroke Pattern Information. - George A. Tsihrintzis; Maria Virvou; Ioanna-Ourania Stathopoulou; Efthymios Alepis (Web Intelligence, 2008)

Affective Reasoning Based on Bi-modal Interaction and User Stereotypes. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (New Directions in Intelligent Interactive Multimedia, 2008)

Recognition and Generation of Emotions in Affective e-Learning. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (ICSOFT (2), 2009)

Emotion Based User Interaction in Multimedia Educational Applications. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (ICSOFT (Selected Papers), 2009)

Emotional Intelligence in Multimodal Object Oriented User Interfaces. - Efthymios Alepis; Maria Virvou (KES IIMSS, 2009)

OCC for Emotion Generation in e-Learning Systems. - Efthymios Alepis; Maria Virvou (WEBIST, 2009)

Mobile Education: Towards Affective Bi-modal Interaction for Adaptivity. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (Int. J. Interact. Mob. Technol., 2009)

Συναισθηματική ευφυΐα σε αντικειμενοστρεφή πολυτροπικά συστήματα διεπαφής για κινητή και ηλεκτρονική μάθηση - Efthimios Alepis (2009)

Audio-lingual and Visual-facial Emotion Recognition: Towards a Bi-modal Interaction System. - Efthymios Alepis; Ioanna-Ourania Stathopoulou; Maria Virvou; George A. Tsihrintzis; Katerina Kabassi (ICTAI (2), 2010)

Object oriented architecture for affective multimodal e-learning interfaces. - Efthymios Alepis; Maria Virvou (Intell. Decis. Technol., 2010)

On assisting a visual-facial affect recognition system with keyboard-stroke pattern information. - Ioanna-Ourania Stathopoulou; Efthymios Alepis; George A. Tsihrintzis; Maria Virvou (Knowl. Based Syst., 2010)

Combining Two Decision Making Theories for Affective Learning in Programming Courses. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (CSEDU (1), 2011)

Location based user Modeling in Adaptive Mobile Learning for Environmental Awareness. - Efthymios Alepis; Maria Virvou; Katerina Kabassi (ICSOFT (1), 2011)

Automatic generation of emotions in tutoring agents for affective e-learning in medical education. - Efthymios Alepis; Maria Virvou (Expert Syst. Appl., 2011)

User Modeling on Communication Characteristics Using Machine Learning in Computer-Supported Collaborative Multiple Language Learning. - Maria Virvou; Efthymios Alepis; Christos Troussas (ICTAI, 2012)

Intelligent Mobile Multimedia Application for the Support of the Elderly. - Panagiotis Pavlakis; Efthymios Alepis; Maria Virvou (IIH-MSP, 2012)

Computer-aided diagnosis and access on peoples' health status using web technology and mobile devices. - Christos Lambrinidis; Efthymios Alepis (JCKBSE, 2012)

Error diagnosis in computer-supported collaborative multiple language learning using user classification. - Maria Virvou; Efthymios Alepis; Christos Troussas (JCKBSE, 2012)

Centroid-based Clustering for Student Models in Computer-based Multiple Language Tutoring. - Maria Virvou; Efthymios Alepis; Christos Troussas (SIGMAP, 2012)

Emotion Recognition: Empirical Studies towards the Combination of Audio-Lingual and Visual-Facial Modalities through Multi-Attribute Decision Making. - Maria Virvou; George A. Tsihrintzis; Efthymios Alepis; Ioanna-Ourania Stathopoulou; Katerina Kabassi (Int. J. Artif. Intell. Tools, 2012)

Multimodal object oriented user interfaces in mobile affective interaction. - Efthymios Alepis; Maria Virvou (Multim. Tools Appl., 2012)

Multiple parameter cluster analysis in a multiple language learning system. - Christos Troussas; Maria Virvou; Efthymios Alepis (IISA, 2013)

Multifactorial user models for personalized mobile-assisted language learning. - Christos Troussas; Maria Virvou; Efthimios Alepis (IDT/IIMSS/STET, 2014)

Human smartphone interaction: Exploring smartphone senses. - Efthimios Alepis; Maria Virvou; Savas Drakoulis (IISA, 2014)

Mobile authoring in a multiple language learning environment. - Christos Troussas; Efthimios Alepis; Maria Virvou (IISA, 2014)

Collaborative Learning: Group Interaction in an Intelligent Mobile-Assisted Multiple Language Learning System. - Christos Troussas; Maria Virvou; Efthimios Alepis (Informatics Educ., 2014)

Object-Oriented User Interfaces for Personalized Mobile Learning - Efthimios Alepis; Maria Virvou (Springer, 2014)

A learning analytics tool for supporting teacher decision. - Maria Virvou; Efthimios Alepis; Sotirios-Christos Sidiropoulos (IISA, 2015)

Empirical study towards the creation of educational user profiles for the students of an open university. - Maria Virvou; Katerina Kabassi; Efthimios Alepis; Achilles Kameas; Christos Pierrakeas; Aspasia Theodosiou (IISA, 2015)

Augmented car: A low-cost augmented reality RC car using the capabilities of a smartphone. - Efthymios Alepis; A. Sakelliou (IISA, 2016)

MyCrowdCharger: Towards a crowd sourced based application for energy sharing between smartphones. - Vasilios Berberidis; Efthimios Alepis (IISA, 2016)

Questionnaires and artificial neural networks: A literature review on modern techniques in education. - Vasiliki Matzavela; Konstantina Chrysafiadi; Efthimios Alepis (EDUCON, 2017)

There's Wally! Location Tracking in Android without Permissions. - Efthimios Alepis; Constantinos Patsakis (ICISSP, 2017)

Mapping the Wireless Coverage Grid for Carrier and User Recommendations through Crowdsourcing. - Efthimios Alepis; Aristea Kontogianni; Constantinos Patsakis (ICTAI, 2017)

Mobile application providing accessible routes for people with mobility impairments. - Efthimios Alepis; Spyro Nita (IISA, 2017)

Reasoning about users actions in a mobile environment using a combination of HPR with MAUT. - Katerina Kabassi; Maria Virvou; Efthymios Alepis (IISA, 2017)

HotSpotCrowd: A crowd sourced based application for sharing data between mobile devices. - Aristea Kontogianni; Efthimios Alepis (IISA, 2017)

A survey for the evolution of adaptive learning in mobile and electronic devices. - Vasiliki Matzavela; Efthimios Alepis (IISA, 2017)

Personalized Museum Exploration by Mobile Devices. - Efthimios Alepis; Katerina Kabassi; Maria Virvou (IMCL, 2017)

Analytical Hierarchy Process and Human Plausible Reasoning for Providing Individualised Support in a Mobile Interface. - Katerina Kabassi; Maria Virvou; Efthimios Alepis (IMCL, 2017)

Persistent vs Service IDs in Android: Session Fingerprinting from Apps. - Efthimios Alepis; Constantinos Patsakis (MONAMI, 2017)

Trapped by the UI: The Android Case. - Efthimios Alepis; Constantinos Patsakis (RAID, 2017)

The All Seeing Eye: Web to App Intercommunication for Session Fingerprinting in Android. - Efthimios Alepis; Constantinos Patsakis (SpaCCS, 2017)

Hey Doc, Is This Normal?: Exploring Android Permissions in the Post Marshmallow Era. - Efthimios Alepis; Constantinos Patsakis (SPACE, 2017)

Monkey Says, Monkey Does: Security and Privacy on Voice Assistants. - Efthimios Alepis; Constantinos Patsakis (IEEE Access, 2017)

A survey on mobile affective computing. - Eugenia A. Politou; Efthimios Alepis; Constantinos Patsakis (Comput. Sci. Rev., 2017)

M-learning programming platform: Evaluation in elementary schools. - Efthimios Alepis; Christos Troussas (Informatica (Slovenia), 2017)

Notify This: Exploiting Android Notifications for Fun and Profit. - Efthimios Alepis (ICISSP (Revised Selected Papers), 2018)

Knock-Knock: The Unbearable Lightness of Android Notifications. - Constantinos Patsakis; Efthimios Alepis (ICISSP, 2018)

Sensus Vox: Sentiment Mapping Through Smartphone Multi-Sensory Crowdsourcing. - Angelos Fasoulis; Maria Virvou; George A. Tsihrintzis; Constantinos Patsakis; Efthimios Alepis (ICTAI, 2018)

Software Measures for Common Design Patterns Using Visual Studio Code Metrics. - Andreas Karavokyris; Efthimios Alepis (IISA, 2018)

Smart Tourism Through Social Network User Modeling: A Literature Review. - Aristea Kontogianni; Katerina Kabassi; Maria Virvou; Efthimios Alepis (IISA, 2018)

A Web-Based Application for Innovative Hospital Appointment Scheduling Using Neural Network. - Konstantinos Rammos; Spyros Papadimitriou; Maria Virvou; Efthimios Alepis (IISA, 2018)

An Artificial Immune System-Based Approach for the Extraction of Learning Style Stereotypes. - Dionisios N. Sotiropoulos; Efthimios Alepis; Katerina Kabassi; Maria K. Virvou; George A. Tsihrintzis (JCKBSE, 2018)

Designing a Smart Tourism Mobile Application: User Modelling Through Social Networks' User Implicit Data. - Aristea Kontogianni; Katerina Kabassi; Efthimios Alepis (SocInfo (2), 2018)

Security and Privacy Analysis of Mobile Health Applications: The Alarming State of Practice. - Achilleas Papageorgiou; Michael Strigkos; Eugenia A. Politou; Efthimios Alepis; Agusti Solanas; Constantinos Patsakis (IEEE Access, 2018)

Backups and the right to be forgotten in the GDPR: An uneasy relationship. - Eugenia A. Politou; Alexandra K. Michota; Efthimios Alepis; Matthias Pocs; Constantinos Patsakis (Comput. Law Secur. Rev., 2018)

Forgetting personal data and revoking consent under the GDPR: Challenges and proposed solutions. - Eugenia A. Politou; Efthimios Alepis; Constantinos Patsakis (J. Cybersecur., 2018)

I know what you streamed last night: On the security and privacy of streaming. - Alexios Nikas; Efthimios Alepis; Constantinos Patsakis (Digit. Investig., 2018)

Session Fingerprinting in Android via Web-to-App Intercommunication. - Efthimios Alepis; Constantinos Patsakis (Secur. Commun. Networks, 2018)

Moments of Interest: A novel cloud-based crowdsourcing application enhancing smart tourism recommendations. - Aristea Kontogianni; Efthimios Alepis (CEEC, 2019)

Behavioral Biometric Authentication in Android Unlock Patterns through Machine Learning. - José Torres; Sergio de los Santos; Efthimios Alepis; Constantinos Patsakis (ICISSP, 2019)

User Behavioral Biometrics and Machine Learning Towards Improving User Authentication in Smartphones. - José Torres; Sergio de los Santos; Efthimios Alepis; Constantinos Patsakis (ICISSP (Revised Selected Papers), 2019)

Smart Android Application using Self-Destructive Identities against Cyber Harassment. - Charalampos Houlis; Constantinos Patsakis; Efthimios Alepis (IISA, 2019)

Profiling tax and financial behaviour with big data under the GDPR. - Eugenia A. Politou; Efthimios Alepis; Constantinos Patsakis (Comput. Law Secur. Rev., 2019)

Artificial Immune System-Based Learning Style Stereotypes. - Dionisios N. Sotiropoulos; Efthimios Alepis; Katerina Kabassi; Maria K. Virvou; George A. Tsihrintzis; Evangelos Sakkopoulos (Int. J. Artif. Intell. Tools, 2019)

Unravelling Security Issues of Runtime Permissions in Android. - Efthimios Alepis; Constantinos Patsakis (J. Hardw. Syst. Secur., 2019)

Measuring the Quality of Street Surfaces in Smart Cities through Smartphone Crowdsensing. - Effrosyni Sigala; Efthimios Alepis; Constantinos Patsakis (IISA, 2020)

Immutability and Decentralized Storage: An Analysis of Emerging Threats. - Fran Casino; Eugenia A. Politou; Efthimios Alepis; Constantinos Patsakis (IEEE Access, 2020)

Smart tourism: State of the art and literature review for the last six years. - Aristea Kontogianni; Efthimios Alepis (Array, 2020)

Delegated content erasure in IPFS. - Eugenia A. Politou; Efthimios Alepis; Constantinos Patsakis; Fran Casino; Mamoun Alazab (Future Gener. Comput. Syst., 2020)

Smartphone Crowdsourcing and Data Sharing Towards Advancing User Experience and Mobile Services. - Efthymios Alepis; Aristea Kontogianni (Int. J. Interact. Mob. Technol., 2020)

Intelligent and adaptive tutoring through a social network for higher education. - Christos Troussas; Akrivi Krouska; Efthimios Alepis; Maria Virvou (New Rev. Hypermedia Multim., 2020)

Learning Analytics in Distance and Mobile Learning for Designing Personalised Software. - Katerina Kabassi; Efthimios Alepis (Machine Learning Paradigms, 2020)

Machine Learning Paradigms - Advances in Learning Analytics. - Maria Virvou; Efthimios Alepis; George A. Tsihrintzis; Lakhmi C. Jain (Machine Learning Paradigms, 2020)

Crowdsourcing Recognized Image Objects In Mobile Devices Through Machine Learning. - Athanasios Giannikis; Efthimios Alepis; Maria Virvou (ICTAI, 2021)

Covid-19 Mobile Tracking Application Utilizing Smart Sensors. - Efthimios Alepis; Maria Virvou; Polychronis Kontomaris (IISA, 2021)

Decision tree learning through a Predictive Model for Student Academic Performance in Intelligent M-Learning environments. - Vasiliki Matzavela; Efthimios Alepis (Comput. Educ. Artif. Intell., 2021)

M-learning in the COVID-19 era: physical vs digital class. - Vasiliki Matzavela; Efthimios Alepis (Educ. Inf. Technol., 2021)

Blockchain Mutability: Challenges and Proposed Solutions. - Eugenia A. Politou; Fran Casino; Efthimios Alepis; Constantinos Patsakis (IEEE Trans. Emerg. Top. Comput., 2021)

Privacy and Data Protection Challenges in the Distributed Era - Eugenia A. Politou; Efthimios Alepis; Maria Virvou; Constantinos Patsakis (Springer, 2022)

Semi-Decentralized File Sharing as a Service. - Vasileios Argyropoulos; Efthimios Alepis; Constantinos Patsakis (IISA, 2022)

AI, Blockchain & Cyber tourism joining the Smart Tourism realm. - Aristea Kontogianni; Efthimios Alepis (IISA, 2022)

Promoting smart tourism personalised services via a combination of deep learning techniques. - Aristea Kontogianni; Efthimios Alepis; Constantinos Patsakis (Expert Syst. Appl., 2022)

Requirements for Fuzzy Logic in Personalisation of Fire Emergency Alerts. - Nancy Alonistioti; Evangelia-Aikaterini Tsichrintzi; Konstantina Chrysafiadi; Efthimios Alepis (IISA, 2023)

Covid-19 New Cases Correlation Analysis: Weather Conditions, Citizen Traffic and Vaccination Statistics Impact in NARX Estimated Regressions in Attica, Greece. - Anargyros Douladiris; Efthimios Alepis (IISA, 2023)

Social Network Data Enabling Smart Tourism. - Aristea Kontogianni; Efthimios Alepis (IISA, 2023)

Design of Real-Time Multiplayer Word Game for the Android Platform Using Firebase and Fuzzy Logic. - Tselepatiotis Michail; Efthimios Alepis (IISA, 2023)

Hello Me, Meet the Real Me: Audio Deepfake Attacks on Voice Assistants. - Domna Bilika; Nikoletta Michopoulou; Efthimios Alepis; Constantinos Patsakis (CoRR, 2023)

Tourism embraces blockchain towards the smart tourism era. - Aristea Kontogianni; Efthimios Alepis (Intell. Decis. Technol., 2023)

An application of self-assessment of students in mathematics with intelligent decision systems: questionnaire, design and implementation at digital education. - Vasiliki Matzavela; Efthimios Alepis (Educ. Inf. Technol., 2023)

AI in Smart Tourism: LLMs & GPTs Leading the Way. - Aristea Kontogianni; Efthimios Alepis (IISA, 2024)

Adaptive Learning in Mobile Serious Games: A Personalized Approach Using AI for General Knowledge Quizzes. - Tselepatiotis Michail; Efthimios Alepis (IISA, 2024)

Smart Tourism-The Impact of Artificial Intelligence and Blockchain - Aristea Kontogianni; Efthimios Alepis; Maria Virvou; Constantinos Patsakis (Springer, 2024)

Hello me, meet the real me: Voice synthesis attacks on voice assistants. - Domna Bilika; Nikoletta Michopoulou; Efthimios Alepis; Constantinos Patsakis (Comput. Secur., 2024)

Cashing out crypto: state of practice in ransom payments. - Constantinos Patsakis; Eugenia A. Politou; Efthimios Alepis; Julio C. Hernandez-Castro (Int. J. Inf. Sec., 2024)