no code implementations • 18 Dec 2023 • Augusto Santos, Diogo Rente, Rui Seabra, José M. F. Moura
In a Networked Dynamical System (NDS), each node is a system whose dynamics are coupled with the dynamics of neighboring nodes.
1 code implementation • 10 Dec 2023 • Augusto Santos, Diogo Rente, Rui Seabra, José M. F. Moura
To address the challenge of noise correlation and partial observability, we assign to each pair of nodes a feature vector computed from the time series data of observed nodes.
1 code implementation • 8 Aug 2022 • Sérgio Machado, Anirudh Sridhar, Paulo Gil, Jorge Henriques, José M. F. Moura, Augusto Santos
This renders the features amenable to train a variety of classifiers to perform causal inference.
1 code implementation • 20 May 2022 • Nguyen Huu Phong, Augusto Santos, Bernardete Ribeiro
In such framework, the vector of weights of each ConvNet is typically cast as the position of a particle in phase space whereby PSO collaborative dynamics intertwines with Stochastic Gradient Descent (SGD) in order to boost training performance and generalization.
Ranked #39 on Image Classification on CIFAR-10
no code implementations • 18 Dec 2019 • Vincenzo Matta, Augusto Santos, Ali H. Sayed
Many optimization, inference and learning tasks can be accomplished efficiently by means of decentralized processing algorithms where the network topology (i. e., the graph) plays a critical role in enabling the interactions among neighboring nodes.
no code implementations • 5 Apr 2019 • Vincenzo Matta, Augusto Santos, Ali H. Sayed
This claim is proved for three matrix estimators: i) the Granger estimator that adapts to the partial observability setting the solution that is exact under full observability ; ii) the one-lag correlation matrix; and iii) the residual estimator based on the difference between two consecutive time samples.