An Apache Spark implementation for graph-based hashtag sentiment classification on Twitter. - Elias Dritsas; Ioannis E. Livieris; Konstantinos C. Giotopoulos; Leonidas Theodorakopoulos (PCI, 2018)

Cheap and efficient solar energy: software and electronics. - Nikitas N. Karanikolas; Antonios Liaramantzas; Leonidas Theodorakopoulos (PCI, 2018)

Expanding Queries with Maximum Likelihood Estimators and Language Models. - Christos N. Karras; Aristeidis Karras; Leonidas Theodorakopoulos; Ioanna Giannoukou; Spyros Sioutas (ICR, 2022)

SparkReact: A Novel and User-friendly Graphical Interface for the Apache Spark MLlib Library. - Aristeidis Karras; Christos N. Karras; Agorakis Bompotas; Panagiotis Bouras; Leonidas Theodorakopoulos; Spyros Sioutas (PCI, 2022)

Tree Data Structures and Efficient Indexing Techniques for Big Data Management: A Comprehensive Study. - Dimitrios Samoladas; Christos N. Karras; Aristeidis Karras; Leonidas Theodorakopoulos; Spyros Sioutas (PCI, 2022)

Faculty members' Perceptions of Remote Electronic Examinations in Distance Academic Education. - George Vorvilas; Alexandros Liapis; Nikos Karousos; Leonidas Theodorakopoulos; Eirini Lagiou; Achilles Kameas (IISA, 2023)

Autonomous Vehicles: Sophisticated Attacks, Safety Issues, Challenges, Open Topics, Blockchain, and Future Directions. - Anastasios Giannaros; Aristeidis Karras; Leonidas Theodorakopoulos; Christos N. Karras; Panagiotis Kranias; Nikolaos Schizas; Gerasimos Kalogeratos; Dimitrios Tsolis (J. Cybersecur. Priv., 2023)

Cyber Threat Intelligence in Smart Cities: Bayesian Inference and Energy Optimization in LoRa Networks for Big Data Applications. - Aristeidis N. Karras; Leonidas Theodorakopoulos; Christos N. Karras; Hera Antonopoulou (IEEE Big Data, 2024)

Distributed Bayesian Inference for Large-Scale IoT Systems. - Eleni Vlachou; Aristeidis Karras; Christos N. Karras; Leonidas Theodorakopoulos; Constantinos Halkiopoulos; Spyros Sioutas (Big Data Cogn. Comput., 2024)

TinyML Algorithms for Big Data Management in Large-Scale IoT Systems. - Aristeidis Karras; Anastasios Giannaros; Christos N. Karras; Leonidas Theodorakopoulos; Constantinos S. Mammassis; George A. Krimpas; Spyros Sioutas (Future Internet, 2024)

Efficient Algorithms for Range Mode Queries in the Big Data Era. - Christos N. Karras; Leonidas Theodorakopoulos; Aristeidis Karras; George A. Krimpas (Inf., 2024)

NeuralACT: Accounting Analytics Using Neural Network for Real-Time Decision Making From Big Data. - Leonidas Theodorakopoulos; Alexandra Theodoropoulou; Georgios Kampiotis; Ioanna Kalliampakou (IEEE Access, 2025)