no code implementations • 13 Mar 2024 • Charles Hovine, Alexander Bertrand
A wireless sensor network often relies on a fusion center to process the data collected by each of its sensing nodes.
1 code implementation • 31 Jan 2024 • Simon Geirnaert, Yuanyuan Yao, Tom Francart, Alexander Bertrand
In this context, generalized canonical correlation analysis (GCCA) is often used as a group analysis technique, which allows the extraction of correlated signal components from the neural activity of multiple subjects attending to the same stimulus.
no code implementations • 17 Oct 2023 • Nicolas Heintz, Tom Francart, Alexander Bertrand
Linear Discriminant Analysis (LDA) is one of the oldest and most popular linear methods for supervised classification problems.
no code implementations • 12 Sep 2023 • Cem Ates Musluoglu, Alexander Bertrand
The distributed adaptive signal fusion (DASF) framework allows to solve spatial filtering optimization problems in a distributed and adaptive fashion over a bandwidth-constrained wireless sensor network.
no code implementations • 16 Aug 2023 • Thomas Strypsteen, Alexander Bertrand
We then show how we can use this dynamic selection to increase the lifetime of a wireless sensor network (WSN) by imposing constraints on how often each node is allowed to transmit.
no code implementations • 2 Nov 2022 • Cem Ates Musluoglu, Alexander Bertrand
The distributed adaptive signal fusion (DASF) framework has been proposed as a generic method to solve these signal fusion problems in a distributed fashion, which reduces the communication and energy costs in the network.
no code implementations • 27 Oct 2022 • Charles Hovine, Alexander Bertrand
Computing the optimal solution to a spatial filtering problems in a Wireless Sensor Network can incur large bandwidth and computational requirements if an approach relying on data centralization is used.
1 code implementation • 24 Oct 2022 • Simon Geirnaert, Tom Francart, Alexander Bertrand
We show the superiority of the proposed stimulus-informed GCCA method based on the inter-subject correlation between electroencephalography responses of a group of subjects listening to the same speech stimulus, especially for lower amounts of data or smaller groups of subjects.
no code implementations • 14 Oct 2022 • Thomas Strypsteen, Alexander Bertrand
In this paper, we describe a conceptual design methodology to design distributed neural network architectures that can perform efficient inference within sensor networks with communication bandwidth constraints.
1 code implementation • 22 Sep 2022 • Nick Seeuws, Maarten De Vos, Alexander Bertrand
Methods: We propose an event-based modeling framework that directly works with events as learning targets, stepping away from ad-hoc post-processing schemes to turn model outputs into events.
1 code implementation • 18 Aug 2022 • Cem Ates Musluoglu, Charles Hovine, Alexander Bertrand
This paper studies the convergence conditions and properties of the distributed adaptive signal fusion (DASF) algorithm, the framework itself having been introduced in a `Part I' companion paper.
1 code implementation • 18 Aug 2022 • Cem Ates Musluoglu, Alexander Bertrand
The proposed distributed adaptive signal fusion (DASF) algorithm is an iterative method that solves these types of problems by allowing each node to share a linearly compressed version of the local sensor signal observations with its neighbors to reduce the energy and bandwidth requirements of the network.
1 code implementation • 28 May 2021 • Jonathan Dan, Simon Geirnaert, Alexander Bertrand
This group-sparsity allows, for instance, to perform sensor selection for spatio-temporal (instead of purely spatial) filters, and to select variables based on multiple generalized eigenvectors instead of only the dominant one.
no code implementations • 11 Feb 2021 • Thomas Strypsteen, Alexander Bertrand
Many electroencephalography (EEG) applications rely on channel selection methods to remove the least informative channels, e. g., to reduce the amount of electrodes to be mounted, to decrease the computational load, or to reduce overfitting effects and improve performance.
2 code implementations • 21 Aug 2020 • Tim De Ryck, Maarten De Vos, Alexander Bertrand
Detectable change points include abrupt changes in the slope, mean, variance, autocorrelation function and frequency spectrum.
no code implementations • 11 Aug 2020 • Simon Geirnaert, Servaas Vandecappelle, Emina Alickovic, Alain de Cheveigné, Edmund Lalor, Bernd T. Meyer, Sina Miran, Tom Francart, Alexander Bertrand
People suffering from hearing impairment often have difficulties participating in conversations in so-called `cocktail party' scenarios with multiple people talking simultaneously.
no code implementations • 18 Feb 2016 • Simon Van Eyndhoven, Tom Francart, Alexander Bertrand
OBJECTIVE: We aim to extract and denoise the attended speaker in a noisy, two-speaker acoustic scenario, relying on microphone array recordings from a binaural hearing aid, which are complemented with electroencephalography (EEG) recordings to infer the speaker of interest.