no code implementations • 12 Mar 2024 • Dionysios Diamantopolous, Roman Pletka, Slavisa Sarafijanovic, A. L. Narasimha Reddy, Haris Pozidis
Our results show that these models are effective in detecting ransomware, highlighting the practical application of our emulator in developing responsible cybersecurity tools.
no code implementations • 13 Feb 2024 • Jovan Blanuša, Maximo Cravero Baraja, Andreea Anghel, Luc von Niederhäusern, Erik Altman, Haris Pozidis, Kubilay Atasu
In this paper, we present "Graph Feature Preprocessor", a software library for detecting typical money laundering and fraud patterns in financial transaction graphs in real time.
no code implementations • 15 Oct 2019 • Andreea Anghel, Nikolas Ioannou, Thomas Parnell, Nikolaos Papandreou, Celestine Mendler-Dünner, Haris Pozidis
In this paper we analyze, evaluate, and improve the performance of training Random Forest (RF) models on modern CPU architectures.
no code implementations • 16 Sep 2019 • Dimitrios Sarigiannis, Thomas Parnell, Haris Pozidis
In this work, we propose a novel sampling distribution as an alternative to uniform sampling and prove theoretically that it has a better chance of finding the best configuration in a worst-case setting.
no code implementations • 22 Feb 2017 • Thomas Parnell, Celestine Dünner, Kubilay Atasu, Manolis Sifalakis, Haris Pozidis
In this work we propose an accelerated stochastic learning system for very large-scale applications.