Leonidas Theodorakopoulos

According to our database, Leonidas Theodorakopoulos authored at least 23 papers between 2018 and 2026.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2026

Towards LLM-Driven Cybersecurity in Autonomous Vehicles: A Big Data-Empowered Framework with Emerging Technologies.

Aristeidis Karras, Leonidas Theodorakopoulos, Christos N. Karras, Alexandra Theodoropoulou

Mach. Learn. Knowl. Extr., 2026

Big Data Analytics and AI for Consumer Behavior in Digital Marketing: Applications, Synthetic and Dark Data, and Future Directions.

Leonidas Theodorakopoulos, Alexandra Theodoropoulou, Christos Klavdianos

Big Data Cogn. Comput., 2026

2025

Interactive Viral Marketing Through Big Data Analytics, Influencer Networks, AI Integration, and Ethical Dimensions.

Leonidas Theodorakopoulos, Alexandra Theodoropoulou, Christos Klavdianos

J. Theor. Appl. Electron. Commer. Res., 2025

LLMs for Cybersecurity in the Big Data Era: A Comprehensive Review of Applications, Challenges, and Future Directions.

Aristeidis Karras, Leonidas Theodorakopoulos, Christos N. Karras, Alexandra Theodoropoulou, Ioanna Kalliampakou, Gerasimos Kalogeratos

Inf., 2025

Big data in financial risk management: evidence, advances, and open questions: a systematic review.

Leonidas Theodorakopoulos, Alexandra Theodoropoulou, Aristeidis Bakalis

Frontiers Artif. Intell., 2025

Optimizing Apache Spark MLlib: Predictive Performance of Large-Scale Models for Big Data Analytics.

Leonidas Theodorakopoulos, Aristeidis Karras, George A. Krimpas

Algorithms, 2025

LLM-Driven Big Data Management Across Digital Governance, Marketing, and Accounting: A Spark-Orchestrated Framework.

Aristeidis Karras, Leonidas Theodorakopoulos, Christos N. Karras, George A. Krimpas, Anastasios Giannaros, Charalampos-Panagiotis Bakalis

Algorithms, 2025

MCMC Methods: From Theory to Distributed Hamiltonian Monte Carlo over PySpark.

Christos N. Karras, Leonidas Theodorakopoulos, Aristeidis Karras, George A. Krimpas, Charalampos-Panagiotis Bakalis, Alexandra Theodoropoulou

Algorithms, 2025

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

Lessons Learned from Setting Up Kubernetes for Operations on Temporal Graph Neural Networks.

Fotis Sofoulis, Georgios Drakopoulos, Leonidas Theodorakopoulos, Spyros Sioutas

Proceedings of the 10th South-East Europe Design Automation, 2025

Functional Programming Meets Pinecone: Recommending Graph Structured Documents.

Georgios Drakopoulos, Leonidas Theodorakopoulos, Spyros Sioutas, Phivos Mylonas

Proceedings of the IEEE International Conference on Big Data, 2025

Extractive Document Summarization with Graph Neural Networks and Topic Modeling in PyTorch.

Ermis Arvanitis, Georgios Drakopoulos, Leonidas Theodorakopoulos, Spyros Sioutas, Phivos Mylonas

Proceedings of the IEEE International Conference on Big Data, 2025

2024

Efficient Algorithms for Range Mode Queries in the Big Data Era.

Christos N. Karras, Leonidas Theodorakopoulos, Aristeidis Karras, George A. Krimpas

Inf., August, 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, February, 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., January, 2024

Cyber Threat Intelligence in Smart Cities: Bayesian Inference and Energy Optimization in LoRa Networks for Big Data Applications.

Aristeidis Karras, Leonidas Theodorakopoulos, Christos N. Karras, Hera Antonopoulou

Proceedings of the IEEE International Conference on Big Data, 2024

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., August, 2023

Faculty members' Perceptions of Remote Electronic Examinations in Distance Academic Education.

George Vorvilas, Alexandros Liapis, Nikos Karousos, Leonidas Theodorakopoulos, Eirini Lagiou, Achilles Kameas

Proceedings of the 14th International Conference on Information, 2023

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

Proceedings of the 26th Pan-Hellenic Conference on Informatics, 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

Proceedings of the 26th Pan-Hellenic Conference on Informatics, 2022

Expanding Queries with Maximum Likelihood Estimators and Language Models.

Christos N. Karras, Aristeidis Karras, Leonidas Theodorakopoulos, Ioanna Giannoukou, Spyros Sioutas

Proceedings of the ICR'22 International Conference on Innovations in Computing Research, 2022

2018

Cheap and efficient solar energy: software and electronics.

Nikitas N. Karanikolas, Antonios Liaramantzas, Leonidas Theodorakopoulos

Proceedings of the 22nd Pan-Hellenic Conference on Informatics, 2018

An Apache Spark implementation for graph-based hashtag sentiment classification on Twitter.

Elias Dritsas, Ioannis E. Livieris, Konstantinos C. Giotopoulos, Leonidas Theodorakopoulos

Proceedings of the 22nd Pan-Hellenic Conference on Informatics, 2018