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The application of Riemannian geometry in the decoding of brain-computer interfaces (BCIs) has swiftly garnered attention because of its straightforwardness, precision, and resilience, along with its aptitude for transfer learning, which…

Signal Processing · Electrical Eng. & Systems 2024-07-31 Imad Eddine Tibermacine , Samuele Russo , Ahmed Tibermacine , Abdelaziz Rabehi , Bachir Nail , Kamel Kadri , Christian Napoli

This paper addresses the challenge of generating synthetic electroencephalogram (EEG) covariance matrices for motor imagery brain-computer interface (MI-BCI) applications. Objective: We aim to develop a generative model capable of producing…

Machine Learning · Computer Science 2026-03-12 Viktorija Poļaka , Ivo Pascal de Jong , Andreea Ioana Sburlea

The generalization and robustness of an electroencephalogram (EEG)-based computer aided diagnostic system are crucial requirements in actual clinical practice. To reach these goals, we propose a new EEG representation that provides a more…

Machine Learning · Computer Science 2017-02-10 Khadijeh Sadatnejad , Saeed S. Ghidary , Reza Rostami , Reza Kazemi

When dealing with electro or magnetoencephalography records, many supervised prediction tasks are solved by working with covariance matrices to summarize the signals. Learning with these matrices requires using Riemanian geometry to account…

During mechanical ventilation, patient-ventilator disharmony is frequently observed and may result in increased breathing effort, compromising the patient's comfort and recovery. This circumstance requires clinical intervention and becomes…

Human-Computer Interaction · Computer Science 2016-09-21 X Navarro-Sune , A. L. Hudson , F. De Vico Fallani , J. Martinerie , A. Witon , P. Pouget , M. Raux , T. Similowski , M. Chavez

We present a novel deep neural architecture for learning electroencephalogram (EEG). To learn the spatial information, our model first obtains the Riemannian mean and distance from spatial covariance matrices (SCMs) on a Riemannian…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Guangyi Zhang , Ali Etemad

Brain-computer interface (BCI) systems facilitate unique communication between humans and computers, benefiting severely disabled individuals. Despite decades of research, BCIs are not fully integrated into clinical and commercial settings.…

Human-Computer Interaction · Computer Science 2024-05-03 Param Rajpura , Hubert Cecotti , Yogesh Kumar Meena

This paper proposes a strategy to handle missing data for the classification of electroencephalograms using covariance matrices. It relies on the observed-data likelihood within an expectation-maximization algorithm. This approach is…

Human-Computer Interaction · Computer Science 2022-05-06 Alexandre Hippert-Ferrer , Ammar Mian , Florent Bouchard , Frédéric Pascal

The electroencephalogram (EEG) is the most popular form of input for brain computer interfaces (BCIs). However, it can be easily contaminated by various artifacts and noise, e.g., eye blink, muscle activities, powerline noise, etc.…

Signal Processing · Electrical Eng. & Systems 2018-08-21 He He , Dongrui Wu

Riemannian geometry has been successfully used in many brain-computer interface (BCI) classification problems and demonstrated superior performance. In this paper, for the first time, it is applied to BCI regression problems, an important…

Human-Computer Interaction · Computer Science 2020-03-31 Dongrui Wu , Brent J. Lance , Vernon J. Lawhern , Stephen Gordon , Tzyy-Ping Jung , Chin-Teng Lin

Robust decoding and classification of brain patterns measured with electroencephalography (EEG) remains a major challenge for real-world (i.e. outside scientific lab and medical facilities) brain-computer interface (BCI) applications due to…

Neurons and Cognition · Quantitative Biology 2025-12-03 Paul Barbaste , Olivier Oullier , Xavier Vasques

This study investigates the application of Riemannian geometry-based methods for brain decoding using invasive electrophysiological recordings. Although previously employed in non-invasive, the utility of Riemannian geometry for invasive…

Spatial covariance matrices of EEG signals are Symmetric Positive Definite (SPD) and lie on a Riemannian manifold, yet the theoretical connection between embedding geometry and optimization dynamics remains unexplored. We provide a formal…

Machine Learning · Computer Science 2026-01-30 Chi-Sheng Chen , En-Jui Kuo , Guan-Ying Chen , Xinyu Zhang , Fan Zhang

Purpose: In sleep medicine, assessing the evolution of a subject's sleep often involves the costly manual scoring of electroencephalographic (EEG) signals. In recent years, a number of Deep Learning approaches have been proposed to automate…

Signal Processing · Electrical Eng. & Systems 2024-10-29 Mathieu Seraphim , Alexis Lechervy , Florian Yger , Luc Brun , Olivier Etard

Based on the cumulated experience over the past 25 years in the field of Brain-Computer Interface (BCI) we can now envision a new generation of BCI. Such BCIs will not require training; instead they will be smartly initialized using remote…

Human-Computer Interaction · Computer Science 2026-01-21 Marco Congedo , Alexandre Barachant , Anton Andreev

Brain-computer interfaces (BCIs) offer transformative potential, but decoding neural signals presents significant challenges. The core premise of this paper is built around demonstrating methods to elucidate the underlying low-dimensional…

Machine Learning · Computer Science 2025-02-28 Benjamin J. Choi

Brain-computer interfaces (BCIs) have been gaining momentum in making human-computer interaction more natural, especially for people with neuro-muscular disabilities. Among the existing solutions the systems relying on electroencephalograms…

The key to electroencephalography (EEG)-based brain-computer interface (BCI) lies in neural decoding, and its accuracy can be improved by using hybrid BCI paradigms, that is, fusing multiple paradigms. However, hybrid BCIs usually require…

Machine Learning · Computer Science 2022-12-13 Wenwei Luo , Wanguang Yin , Quanying Liu , Youzhi Qu

Brain computer interface (BCI) is the only way for some special patients to communicate with the outside world and provide a direct control channel between brain and the external devices. As a non-invasive interface, the scalp…

Quantitative Methods · Quantitative Biology 2018-08-15 Chuanqi Tan , Fuchun Sun , Wenchang Zhang , Shaobo Liu , Chunfang Liu

Accurate, fast, and reliable multiclass classification of electroencephalography (EEG) signals is a challenging task towards the development of motor imagery brain-computer interface (MI-BCI) systems. We propose enhancements to different…

Signal Processing · Electrical Eng. & Systems 2018-12-14 Michael Hersche , Tino Rellstab , Pasquale Davide Schiavone , Lukas Cavigelli , Luca Benini , Abbas Rahimi
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