no code implementations • 25 Jul 2023 • Ricardo Ribeiro Pereira, Jacopo Bono, João Tiago Ascensão, David Aparício, Pedro Ribeiro, Pedro Bizarro
In the former, our method moves cumulative amounts close to 350 thousand dollars through a network of accounts without being detected by an existing system.
no code implementations • 17 Jul 2023 • Ahmad Naser Eddin, Jacopo Bono, David Aparício, Hugo Ferreira, João Ascensão, Pedro Ribeiro, Pedro Bizarro
We demonstrate that our graph-sprints features, combined with a machine learning classifier, achieve competitive performance (outperforming all baselines for the node classification tasks in five datasets).
1 code implementation • 1 Feb 2023 • Nicholas Matsumoto, Anil Kumar Saini, Pedro Ribeiro, Hyunjun Choi, Alena Orlenko, Leo-Pekka Lyytikäinen, Jari O Laurikka, Terho Lehtimäki, Sandra Batista, Jason H. Moore
In many evolutionary computation systems, parent selection methods can affect, among other things, convergence to a solution.
no code implementations • 14 Dec 2021 • Ahmad Naser Eddin, Jacopo Bono, David Aparício, David Polido, João Tiago Ascensão, Pedro Bizarro, Pedro Ribeiro
Money laundering is a global problem that concerns legitimizing proceeds from serious felonies (1. 7-4 trillion euros annually) such as drug dealing, human trafficking, or corruption.
1 code implementation • 11 Oct 2021 • Vanessa Freitas Silva, Maria Eduarda Silva, Pedro Ribeiro, Fernando Silva
Our results are very promising, with network features from different mapping methods capturing different properties of the time series, adding a different and rich feature set to the literature.
no code implementations • 11 Oct 2021 • Vanessa Freitas Silva, Maria Eduarda Silva, Pedro Ribeiro, Fernando Silva
These methods involve transforming an initial time series data set into one or more networks, which can be analyzed in depth to provide insight into the original time series.
no code implementations • 22 Dec 2020 • Miguel A. N. Araújo, Pedro Ninhos, Pedro Ribeiro
It is shown that the presence of discrete symmetries in Floquet systems connected to metallic reservoirs imprints a definite parity on the charge and heat pumping as a function of the reservoir's chemical potential, $\mu$.
Mesoscale and Nanoscale Physics Strongly Correlated Electrons Quantum Physics
no code implementations • 24 Aug 2018 • David Aparício, Pedro Ribeiro, Tijana Milenković, Fernando Silva
Dynamic GDVs (DGDVs) were used as a dynamic NC measure within the first-ever algorithms for GPNA of temporal networks: DynaMAGNA++ and DynaWAVE.
1 code implementation • 4 May 2016 • Andrey E. Antipov, Younes Javanmard, Pedro Ribeiro, Stefan Kirchner
Disorder or sufficiently strong interactions can render a metallic state unstable causing it to turn into an insulating one.
Strongly Correlated Electrons Disordered Systems and Neural Networks