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Advances in the motor imagery (MI)-based brain-computer interfaces (BCIs) allow control of several applications by decoding neurophysiological phenomena, which are usually recorded by electroencephalography (EEG) using a non-invasive…

Motor Imagery-Based Brain-Computer Interfaces (MI-BCIs) are systems that detect and interpret brain activity patterns linked to the mental visualization of movement, and then translate these into instructions for controlling external…

Signal Processing · Electrical Eng. & Systems 2025-09-01 Dario Sanalitro , Marco Finocchiaro , Pasquale Memmolo , Emanuela Cutuli , Maide Bucolo

An Event-Related Potential (ERP)-based Brain-Computer Interface (BCI) Speller System assists people with disabilities to communicate by decoding electroencephalogram (EEG) signals. A P300-ERP embedded in EEG signals arises in response to a…

Applications · Statistics 2026-02-18 Tianwen Ma , Jane E. Huggins , Jian Kang

Motor imagery (MI) is a common brain computer interface (BCI) paradigm. EEG is non-stationary with low signal-to-noise, classifying motor imagery tasks of the same participant from different EEG recording sessions is generally challenging,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Zhengqing Miao , Xin Zhang , Carlo Menon , Yelong Zheng , Meirong Zhao , Dong Ming

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

Motor imagery (MI) classification using electroencephalography (EEG) signals is essential for advancing brain-computer interfaces (BCIs). Traditional EEG channel selection methods often face limitations, such as dependency on…

Human-Computer Interaction · Computer Science 2026-05-29 Dekka Muni Kumar , Dhruba Jyoti Kalita , Yogesh Kumar Meena

Brain-Computer Interfaces (BCI) based on Electroencephalography (EEG) signals, in particular motor imagery (MI) data have received a lot of attention and show the potential towards the design of key technologies both in healthcare and other…

Signal Processing · Electrical Eng. & Systems 2021-04-27 Sion An , Soopil Kim , Philip Chikontwe , Sang Hyun Park

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

A conventional brain-computer interface (BCI) requires a complete data gathering, training, and calibration phase for each user before it can be used. In recent years, a number of subject-independent (SI) BCIs have been developed. Many of…

Machine Learning · Computer Science 2022-10-11 Mahbod Nouri , Faraz Moradi , Hafez Ghaemi , Ali Motie Nasrabadi

Brain-computer interfaces (BCIs) turn brain signals into functionally useful output, but they are not always accurate. A good Machine Learning classifier should be able to indicate how confident it is about a given classification, by giving…

Machine Learning · Computer Science 2025-07-17 Joris Suurmeijer , Ivo Pascal de Jong , Matias Valdenegro-Toro , Andreea Ioana Sburlea

Neurophysiological time series recordings like the electroencephalogram (EEG) or local field potentials are obtained from multiple sensors. They can be decoded by machine learning models in order to estimate the ongoing brain state of a…

Signal Processing · Electrical Eng. & Systems 2023-04-14 Pierre Guetschel , Théodore Papadopoulo , Michael Tangermann

Electroencephalography (EEG) plays a vital role in recording brain activities and is integral to the development of brain-computer interface (BCI) technologies. However, the limited availability and high variability of EEG signals present…

Signal Processing · Electrical Eng. & Systems 2024-02-16 Joshua Park , Priyanshu Mahey , Ore Adeniyi

Due to large intra-subject and inter-subject variabilities of electroencephalogram (EEG) signals, EEG-based brain-computer interfaces (BCIs) usually need subject-specific calibration to tailor the decoding algorithm for each new subject,…

Human-Computer Interaction · Computer Science 2025-07-03 Dongrui Wu

In recent years, deep learning (DL) has contributed significantly to the improvement of motor-imagery brain-machine interfaces (MI-BMIs) based on electroencephalography(EEG). While achieving high classification accuracy, DL models have also…

Signal Processing · Electrical Eng. & Systems 2020-06-03 Thorir Mar Ingolfsson , Michael Hersche , Xiaying Wang , Nobuaki Kobayashi , Lukas Cavigelli , Luca Benini

Electroencephalogram-based brain-computer interface (BCI) has potential applications in various fields, but their development is hindered by limited data and significant cross-individual variability. Inspired by the principles of learning…

Neural and Evolutionary Computing · Computer Science 2024-09-30 Junyan Li , Bin Hu , Zhi-Hong Guan

Fueled by the call for formative assessments, diagnostic classification models (DCMs) have recently gained popularity in psychometrics. Despite their potential for providing diagnostic information that aids in classroom instruction and…

Computation · Statistics 2022-08-26 Motonori Oka , Kensuke Okada

Background: Common spatial pattern (CSP) has been widely used for feature extraction in the case of motor imagery (MI) electroencephalogram (EEG) recordings and in MI classification of brain-computer interface (BCI) applications. BCI…

Human-Computer Interaction · Computer Science 2021-08-30 Cancheng Li , Chuanbo Qin , Jing Fang

Over the past few years, symmetric positive definite (SPD) matrices have been receiving considerable attention from computer vision community. Though various distance measures have been proposed in the past for comparing SPD matrices, the…

Computer Vision and Pattern Recognition · Computer Science 2015-01-13 Raviteja Vemulapalli , David W. Jacobs

Estimating means on Riemannian manifolds is generally computationally expensive because the Riemannian distance function is not known in closed-form for most manifolds. To overcome this, we show that Riemannian diffusion means can be…

Other Statistics · Statistics 2025-02-19 Frederik Möbius Rygaard , Steen Markvorsen , Søren Hauberg , Stefan Sommer

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…