| 2021 | ICTAI | Crowdsourcing Recognized Image Objects In Mobile Devices Through Machine Learning. | Athanasios Giannikis, Efthimios Alepis, Maria Virvou |
| 2019 | ICISSP | Behavioral Biometric Authentication in Android Unlock Patterns through Machine Learning. | Jos Torres, Sergio de los Santos, Efthimios Alepis, Constantinos Patsakis |
| 2019 | ICISSP | User Behavioral Biometrics and Machine Learning Towards Improving User Authentication in Smartphones. | Jos Torres, Sergio de los Santos, Efthimios Alepis, Constantinos Patsakis |
| 2018 | ICISSP | Notify This: Exploiting Android Notifications for Fun and Profit. | Efthimios Alepis |
| 2018 | ICISSP | Knock-Knock: The Unbearable Lightness of Android Notifications. | Constantinos Patsakis, Efthimios Alepis |
| 2018 | ICTAI | Sensus Vox: Sentiment Mapping Through Smartphone Multi-Sensory Crowdsourcing. | Angelos Fasoulis, Maria Virvou, George A. Tsihrintzis, Constantinos Patsakis, Efthimios Alepis |
| 2017 | EDUCON | Questionnaires and artificial neural networks: A literature review on modern techniques in education. | Vasiliki Matzavela, Konstantina Chrysafiadi, Efthimios Alepis |
| 2017 | ICISSP | There's Wally! Location Tracking in Android without Permissions. | Efthimios Alepis, Constantinos Patsakis |
| 2017 | ICTAI | Mapping the Wireless Coverage Grid for Carrier and User Recommendations through Crowdsourcing. | Efthimios Alepis, Aristea Kontogianni, Constantinos Patsakis |
| 2017 | RAID | Trapped by the UI: The Android Case. | Efthimios Alepis, Constantinos Patsakis |
| 2003 | SMC | Creating tutoring characters through a Web-based authoring tool for educational software. | Maria Virvou, Efthimios Alepis |