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Neuromorphic hardware equipped with learning capabilities can adapt to new, real-time data. While models of Spiking Neural Networks (SNNs) can now be trained using gradient descent to reach an accuracy comparable to equivalent conventional…

神经与进化计算 · 计算机科学 2022-03-09 Kenneth Stewart , Andreea Danielescu , Timothy Shea , Emre Neftci

A variational autoencoder (VAE) is a probabilistic machine learning framework for posterior inference that projects an input set of high-dimensional data to a lower-dimensional, latent space. The latent space learned with a VAE offers…

机器学习 · 计算机科学 2022-11-16 Rafael Pastrana

Dysarthric speech recognition is a challenging task due to acoustic variability and limited amount of available data. Diverse conditions of dysarthric speakers account for the acoustic variability, which make the variability difficult to be…

音频与语音处理 · 电气工程与系统科学 2024-06-17 Xurong Xie , Rukiye Ruzi , Xunying Liu , Lan Wang

The development of robust and generalisable models for encoding the spatio-temporal dynamics of human brain activity is crucial for advancing neuroscientific discoveries. However, significant individual variation in the organisation of the…

图像与视频处理 · 电气工程与系统科学 2024-06-12 Simon Dahan , Logan Z. J. Williams , Yourong Guo , Daniel Rueckert , Emma C. Robinson

Variational Autoencoders (VAEs) have become a popular approach for dimensionality reduction. However, despite their ability to identify latent low-dimensional structures embedded within high-dimensional data, these latent representations…

机器学习 · 统计学 2020-08-27 Kaspar Märtens , Christopher Yau

Variational Auto-Encoder (VAE) has been widely applied as a fundamental generative model in machine learning. For complex samples like imagery objects or scenes, however, VAE suffers from the dimensional dilemma between reconstruction…

机器学习 · 计算机科学 2020-02-18 Deli Zhao , Jiapeng Zhu , Bo Zhang

Extracting compact, physically interpretable representations from high-dimensional scientific data is a persistent challenge due to the complex, nonlinear structures inherent in physical systems. We propose a Gaussian Mixture Variational…

机器学习 · 计算机科学 2025-12-01 Tiffany Fan , Murray Cutforth , Marta D'Elia , Alexandre Cortiella , Alireza Doostan , Eric Darve

Fair representation learning aims to encode invariant representation with respect to the protected attribute, such as gender or age. In this paper, we design Fairness-aware Disentangling Variational AutoEncoder (FD-VAE) for fair…

机器学习 · 计算机科学 2020-07-09 Sungho Park , Dohyung Kim , Sunhee Hwang , Hyeran Byun

Quantitative imaging methods, such as magnetic resonance fingerprinting (MRF), aim to extract interpretable pathology biomarkers by estimating biophysical tissue parameters from signal evolutions. However, the pattern-matching algorithms or…

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…

音频与语音处理 · 电气工程与系统科学 2020-06-05 Gautam Krishna , Co Tran , Mason Carnahan , Ahmed Tewfik

We introduce Skeleton-Cache, the first training-free test-time adaptation framework for skeleton-based zero-shot action recognition (SZAR), aimed at improving model generalization to unseen actions during inference. Skeleton-Cache…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Jingmin Zhu , Anqi Zhu , Hossein Rahmani , Jun Liu , Mohammed Bennamoun , Qiuhong Ke

Decoding speech from non-invasive brain signals, such as electroencephalography (EEG), has the potential to advance brain-computer interfaces (BCIs), with applications in silent communication and assistive technologies for individuals with…

音频与语音处理 · 电气工程与系统科学 2025-12-30 Terrance Yu-Hao Chen , Yulin Chen , Pontus Soederhaell , Sadrishya Agrawal , Kateryna Shapovalenko

Automated analysis of surgical videos is crucial for improving surgical training, workflow optimization, and postoperative assessment. We introduce a CSMAE, Masked Autoencoder (MAE)-based pretraining approach, specifically developed for…

计算机视觉与模式识别 · 计算机科学 2025-02-14 Nisarg A. Shah , Wele Gedara Chaminda Bandara , Shameema Skider , S. Swaroop Vedula , Vishal M. Patel

Semantic communication (SemCom) significantly reduces redundant data and improves transmission efficiency by extracting the latent features of information. However, most of the conventional deep learning-based SemCom systems focus on analog…

信号处理 · 电气工程与系统科学 2025-12-30 Ming Lyu , Hao Chen , Dan Wang , Chen Qiu , Guangyin Feng , Nan Ma , Xiaodong Xu

Sparse Autoencoders (SAEs) have become an important tool in mechanistic interpretability, helping to analyze internal representations in both Large Language Models (LLMs) and Vision Transformers (ViTs). By decomposing polysemantic…

机器学习 · 计算机科学 2026-05-11 Jakub Stępień , Marcin Mazur , Jacek Tabor , Przemysław Spurek

Zero-Shot Video Anomaly Detection (ZS-VAD) requires temporally localizing anomalies without target domain training data, which is a crucial task due to various practical concerns, e.g., data privacy or new surveillance deployments.…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Canhui Tang , Sanping Zhou , Haoyue Shi , Le Wang

The Variational Autoencoder (VAE) is a seminal approach in deep generative modeling with latent variables. Interpreting its reconstruction process as a nonlinear transformation of samples from the latent posterior distribution, we apply the…

机器学习 · 计算机科学 2023-06-09 Faris Janjoš , Lars Rosenbaum , Maxim Dolgov , J. Marius Zöllner

In this article we introduce the notion of Split Variational Autoencoder (SVAE), whose output $\hat{x}$ is obtained as a weighted sum $\sigma \odot \hat{x_1} + (1-\sigma) \odot \hat{x_2}$ of two generated images $\hat{x_1},\hat{x_2}$, and…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Andrea Asperti , Laura Bugo , Daniele Filippini

The electrocardiogram (ECG) is an inexpensive and widely available tool for cardiac assessment. Despite its standardized format and small file size, the high complexity and inter-individual variability of ECG signals (typically a…

机器学习 · 计算机科学 2025-08-04 Christopher Harvey , Sumaiya Shomaji , Zijun Yao , Amit Noheria

We consider the task of unsupervised extraction of meaningful latent representations of speech by applying autoencoding neural networks to speech waveforms. The goal is to learn a representation able to capture high level semantic content…

机器学习 · 计算机科学 2019-09-12 Jan Chorowski , Ron J. Weiss , Samy Bengio , Aäron van den Oord