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Obesity is a serious issue in the modern society and is often associated to significantly reduced quality of life. Current research conducted to explore obesity-related neurological evidences using electroencephalography (EEG) data are…

Machine Learning · Computer Science 2023-06-23 Yuan Yue , Dirk De Ridder , Patrick Manning , Samantha Ross , Jeremiah D. Deng

The electroencephalogram (EEG) is a powerful method to understand how the brain processes speech. Linear models have recently been replaced for this purpose with deep neural networks and yield promising results. In related EEG…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-25 Lies Bollens , Tom Francart , Hugo Van Hamme

While unsupervised variational autoencoders (VAE) have become a powerful tool in neuroimage analysis, their application to supervised learning is under-explored. We aim to close this gap by proposing a unified probabilistic model for…

Machine Learning · Computer Science 2019-07-15 Qingyu Zhao , Ehsan Adeli , Nicolas Honnorat , Tuo Leng , Kilian M. Pohl

Decoding of motor imagery (MI) from Electroencephalogram (EEG) is an important component of the Brain-Computer Interface (BCI) system that helps motor-disabled people interact with the outside world via external devices. The main issue in…

Signal Processing · Electrical Eng. & Systems 2022-10-05 Souvik Phadikar , Nidul Sinha , Rajdeep Ghosh

Variational autoencoders (VAEs) have been used extensively to discover low-dimensional latent factors governing neural activity and animal behavior. However, without careful model selection, the uncovered latent factors may reflect noise in…

Machine Learning · Computer Science 2023-12-13 Julia Huiming Wang , Dexter Tsin , Tatiana Engel

In this paper we introduce a recurrent neural network (RNN) based variational autoencoder (VAE) model with a new constrained loss function that can generate more meaningful electroencephalography (EEG) features from raw EEG features to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-05 Gautam Krishna , Co Tran , Mason Carnahan , Ahmed Tewfik

We propose GC-VASE, a graph convolutional-based variational autoencoder that leverages contrastive learning for subject representation learning from EEG data. Our method successfully learns robust subject-specific latent representations…

Signal Processing · Electrical Eng. & Systems 2025-01-29 Aditya Mishra , Ahnaf Mozib Samin , Ali Etemad , Javad Hashemi

A fractional-based compressed auto-encoder architecture has been introduced to solve the problem of denoising electroencephalogram (EEG) signals. The architecture makes use of fractional calculus to calculate the gradients during the…

Machine Learning · Computer Science 2021-07-08 Subham Nagar , Ahlad Kumar , M. N. S. Swamy

While capable of segregating visual data, humans take time to examine a single piece, let alone thousands or millions of samples. The deep learning models efficiently process sizeable information with the help of modern-day computing.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Alankrit Mishra , Nikhil Raj , Garima Bajwa

Electroencephalography (EEG) signals reflect activities on certain brain areas. Effective classification of time-varying EEG signals is still challenging. First, EEG signal processing and feature engineering are time-consuming and highly…

Human-Computer Interaction · Computer Science 2019-08-27 Xiang Zhang , Lina Yao , Xianzhi Wang , Wenjie Zhang , Shuai Zhang , Yunhao Liu

3D geometric contents are becoming increasingly popular. In this paper, we study the problem of analyzing deforming 3D meshes using deep neural networks. Deforming 3D meshes are flexible to represent 3D animation sequences as well as…

Graphics · Computer Science 2018-03-30 Qingyang Tan , Lin Gao , Yu-Kun Lai , Shihong Xia

In the context of electroencephalogram (EEG)-based driver drowsiness recognition, it is still challenging to design a calibration-free system, since EEG signals vary significantly among different subjects and recording sessions. Many…

Signal Processing · Electrical Eng. & Systems 2022-02-21 Jian Cui , Zirui Lan , Olga Sourina , Wolfgang Müller-Wittig

In the following short article we adapt a new and popular machine learning model for inference on medical data sets. Our method is based on the Variational AutoEncoder (VAE) framework that we adapt to survival analysis on small data sets…

Machine Learning · Statistics 2018-12-06 Cédric Beaulac , Jeffrey S. Rosenthal , David Hodgson

The increasing availability of electrocardiogram (ECG) data has motivated the use of data-driven models for automating various clinical tasks based on ECG data. The development of subject-specific models are limited by the cost and…

Machine Learning · Computer Science 2018-08-07 Prashnna K Gyawali , B. Milan Horacek , John L. Sapp , Linwei Wang

EEG is a non-invasive technique for recording brain bioelectric activity, which has potential applications in various fields such as human-computer interaction and neuroscience. However, there are many difficulties in analyzing EEG data,…

Signal Processing · Electrical Eng. & Systems 2018-01-18 Yumeng Ye , Haichun Liu , TianHong Zhang , Changchun Pan , Genke Yang , JiJun Wang , Robert C. Qiu

We propose a novel machine learning strategy for studying neuroanatomical shape variation. Our model works with volumetric binary segmentation images, and requires no pre-processing such as the extraction of surface points or a mesh. The…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Evan M. Yu , Mert R. Sabuncu

Understanding the correlation between EEG features and cognitive tasks is crucial for elucidating brain function. Brain activity synchronizes during speaking and listening tasks. However, it is challenging to estimate task-dependent brain…

Neurons and Cognition · Quantitative Biology 2024-10-01 Dai Shimizu , Ko Watanabe , Andreas Dengel

Representation learning seeks to expose certain aspects of observed data in a learned representation that's amenable to downstream tasks like classification. For instance, a good representation for 2D images might be one that describes only…

Machine Learning · Computer Science 2017-03-07 Xi Chen , Diederik P. Kingma , Tim Salimans , Yan Duan , Prafulla Dhariwal , John Schulman , Ilya Sutskever , Pieter Abbeel

Accurate automated analysis of electroencephalography (EEG) would largely help clinicians effectively monitor and diagnose patients with various brain diseases. Compared to supervised learning with labelled disease EEG data which can train…

Machine Learning · Computer Science 2022-07-05 Yaojia Zheng , Zhouwu Liu , Rong Mo , Ziyi Chen , Wei-shi Zheng , Ruixuan Wang

One of the challenges in modeling cognitive events from electroencephalogram (EEG) data is finding representations that are invariant to inter- and intra-subject differences, as well as to inherent noise associated with such data. Herein,…

Machine Learning · Computer Science 2016-03-02 Pouya Bashivan , Irina Rish , Mohammed Yeasin , Noel Codella
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