activity
20022023
most citedLocation-free Spectrum Cartography

22 citations · 44 across the 17 of their papers we have counts for

collaborators

23 papers

cs.LG2023

Efficient Interpretable Nonlinear Modeling for Multiple Time Series

Kevin Roy, Luis Miguel Lopez-Ramos, Baltasar Beferull-Lozano

Predictive linear and nonlinear models based on kernel machines or deep neural networks have been used to discover dependencies among time series. This paper proposes an efficient…

eess.SP2023

Consistent Signal Reconstruction from Streaming Multivariate Time Series

Emilio Ruiz-Moreno, Luis Miguel López-Ramos, Baltasar Beferull-Lozano

Digitalizing real-world analog signals typically involves sampling in time and discretizing in amplitude. Subsequent signal reconstructions inevitably incur an error that depends o…

cs.LG2023

An Online Multiple Kernel Parallelizable Learning Scheme

Emilio Ruiz-Moreno, Baltasar Beferull-Lozano

The performance of reproducing kernel Hilbert space-based methods is known to be sensitive to the choice of the reproducing kernel. Choosing an adequate reproducing kernel can be c…

cs.LG2022

A Trainable Approach to Zero-delay Smoothing Spline Interpolation

Emilio Ruiz-Moreno, Luis Miguel López-Ramos, Baltasar Beferull-Lozano

The task of reconstructing smooth signals from streamed data in the form of signal samples arises in various applications. This work addresses such a task subject to a zero-delay r…

cs.LG2021

Random Feature Approximation for Online Nonlinear Graph Topology Identification

Rohan Money, Joshin Krishnan, Baltasar Beferull-Lozano

Online topology estimation of graph-connected time series is challenging, especially since the causal dependencies in many real-world networks are nonlinear. In this paper, we prop…

eess.SP2021

Explainable nonlinear modelling of multiple time series with invertible neural networks

Luis Miguel Lopez-Ramos, Kevin Roy, Baltasar Beferull-Lozano

A method for nonlinear topology identification is proposed, based on the assumption that a collection of time series are generated in two steps: i) a vector autoregressive process…