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相关论文: VaCDA: Variational Contrastive Alignment-based Sca…

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An effective approach for voice conversion (VC) is to disentangle linguistic content from other components in the speech signal. The effectiveness of variational autoencoder (VAE) based VC (VAE-VC), for instance, strongly relies on this…

音频与语音处理 · 电气工程与系统科学 2020-04-09 Wen-Chin Huang , Hao Luo , Hsin-Te Hwang , Chen-Chou Lo , Yu-Huai Peng , Yu Tsao , Hsin-Min Wang

Skeleton-based human action recognition has been drawing more interest recently due to its low sensitivity to appearance changes and the accessibility of more skeleton data. However, even the 3D skeletons captured in practice are still…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Cunling Bian , Wei Feng , Fanbo Meng , Song Wang

How to select relevant key objects and reason about the complex relationships cross vision and linguistic domain are two key issues in many multi-modality applications such as visual question answering (VQA). In this work, we incorporate…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Zongzhao Li , Xiangyu Zhu , Xi Zhang , Zhaoxiang Zhang , Zhen Lei

Recently, contrastive self-supervised learning has become a key component for learning visual representations across many computer vision tasks and benchmarks. However, contrastive learning in the context of domain adaptation remains…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Mamatha Thota , Georgios Leontidis

Learning rich data representations from unlabeled data is a key challenge towards applying deep learning algorithms in downstream tasks. Several variants of variational autoencoders (VAEs) have been proposed to learn compact data…

计算机视觉与模式识别 · 计算机科学 2024-01-11 Pan Xiao , Peijie Qiu , Sungmin Ha , Abdalla Bani , Shuang Zhou , Aristeidis Sotiras

Every autonomous driving dataset has a different configuration of sensors, originating from distinct geographic regions and covering various scenarios. As a result, 3D detectors tend to overfit the datasets they are trained on. This causes…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Darren Tsai , Julie Stephany Berrio , Mao Shan , Eduardo Nebot , Stewart Worrall

Human Activity Recognition (HAR) is a cornerstone of ubiquitous computing, with promising applications in diverse fields such as health monitoring and ambient assisted living. Despite significant advancements, sensor-based HAR methods often…

信号处理 · 电气工程与系统科学 2024-03-26 Xiaozhou Ye , Waleed H. Abdulla , Nirmal Nair , Kevin I-Kai Wang

Feature extraction is crucial for human activity recognition (HAR) using body-worn movement sensors. Recently, learned representations have been used successfully, offering promising alternatives to manually engineered features. Our work…

机器学习 · 计算机科学 2020-12-11 Harish Haresamudram , Irfan Essa , Thomas Ploetz

Recent LiDAR-based 3D Object Detection (3DOD) methods show promising results, but they often do not generalize well to target domains outside the source (or training) data distribution. To reduce such domain gaps and thus to make 3DOD…

计算机视觉与模式识别 · 计算机科学 2024-03-08 Gyusam Chang , Wonseok Roh , Sujin Jang , Dongwook Lee , Daehyun Ji , Gyeongrok Oh , Jinsun Park , Jinkyu Kim , Sangpil Kim

Latent variable models like the Variational Auto-Encoder (VAE) are commonly used to learn representations of images. However, for downstream tasks like semantic classification, the representations learned by VAE are less competitive than…

机器学习 · 统计学 2022-05-31 Mingtian Zhang , Tim Z. Xiao , Brooks Paige , David Barber

Multi-view data from the same source often exhibit correlation. This is mirrored in correlation between the latent spaces of separate variational autoencoders (VAEs) trained on each data-view. A multi-view VAE approach is proposed that…

机器学习 · 统计学 2025-08-01 Ella S. C. Orme , Marina Evangelou , Ulrich Paquet

In many practical visual recognition scenarios, feature distribution in the source domain is generally different from that of the target domain, which results in the emergence of general cross-domain visual recognition problems. To address…

计算机视觉与模式识别 · 计算机科学 2019-12-25 Shanshan Wang , Lei Zhang , JingRu Fu

Domain adaptation is critical for success in new, unseen environments. Adversarial adaptation models applied in feature spaces discover domain invariant representations, but are difficult to visualize and sometimes fail to capture…

计算机视觉与模式识别 · 计算机科学 2018-01-01 Judy Hoffman , Eric Tzeng , Taesung Park , Jun-Yan Zhu , Phillip Isola , Kate Saenko , Alexei A. Efros , Trevor Darrell

The recently developed variational autoencoders (VAEs) have proved to be an effective confluence of the rich representational power of neural networks with Bayesian methods. However, most work on VAEs use a rather simple prior over the…

机器学习 · 计算机科学 2017-08-29 Prasoon Goyal , Zhiting Hu , Xiaodan Liang , Chenyu Wang , Eric Xing

Domain adaptation (DA) enables knowledge transfer from a labeled source domain to an unlabeled target domain by reducing the cross-domain distribution discrepancy. Most prior DA approaches leverage complicated and powerful deep neural…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Shuang Li , Jinming Zhang , Wenxuan Ma , Chi Harold Liu , Wei Li

The ability of Variational Autoencoders (VAEs) to learn disentangled representations has made them popular for practical applications. However, their behaviour is not yet fully understood. For example, the questions of when they can provide…

机器学习 · 计算机科学 2022-09-27 Lisa Bonheme , Marek Grzes

The ability to recognize objects despite there being differences in appearance, known as Core Object Recognition, forms a critical part of human perception. While it is understood that the brain accomplishes Core Object Recognition through…

机器学习 · 计算机科学 2020-05-15 Harshvardhan Sikka

Variational autoencoders (VAEs) rely on amortized variational inference to enable efficient posterior approximation, but this efficiency comes at the cost of a shared parametrization, giving rise to the amortization gap. We propose the…

机器学习 · 计算机科学 2026-04-21 Andrea Pollastro , Andrea Apicella , Francesco Isgrò , Roberto Prevete

Human Activity Recognition (HAR) plays a crucial role in various applications such as human-computer interaction and healthcare monitoring. However, challenges persist in HAR models due to the data distribution differences between training…

机器学习 · 计算机科学 2024-09-04 Xiaozhou Ye , Kevin I-Kai Wang

Often the analysis of time-dependent chemical and biophysical systems produces high-dimensional time-series data for which it can be difficult to interpret which individual features are most salient. While recent work from our group and…