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Autoencoder networks are unsupervised approaches aiming at combining generative and representational properties by learning simultaneously an encoder-generator map. Although studied extensively, the issues of whether they have the same…

机器学习 · 计算机科学 2020-04-10 Stanislav Pidhorskyi , Donald Adjeroh , Gianfranco Doretto

Variational Autoencoders (VAEs) were originally motivated (Kingma & Welling, 2014) as probabilistic generative models in which one performs approximate Bayesian inference. The proposal of $\beta$-VAEs (Higgins et al., 2017) breaks this…

机器学习 · 统计学 2023-02-10 Tim Z. Xiao , Robert Bamler

The ability to extract generative parameters from high-dimensional fields of data in an unsupervised manner is a highly desirable yet unrealized goal in computational physics. This work explores the use of variational autoencoders (VAEs)…

计算物理 · 物理学 2021-11-16 Christian Jacobsen , Karthik Duraisamy

The unsupervised training of GANs and VAEs has enabled them to generate realistic images mimicking real-world distributions and perform image-based unsupervised clustering or semi-supervised classification. Combining the power of these two…

机器学习 · 计算机科学 2019-06-18 Abdullah-Al-Zubaer Imran , Demetri Terzopoulos

One major challenge of disentanglement learning with variational autoencoders is the trade-off between disentanglement and reconstruction fidelity. Previous studies, which increase the information bottleneck during training, tend to lose…

机器学习 · 计算机科学 2023-10-05 Jiantao Wu , Shentong Mo , Xiang Yang , Muhammad Awais , Sara Atito , Xingshen Zhang , Lin Wang , Xiang Yang

Technological advancements have led to the rise of wearable devices with sensors that continuously monitor user activities, generating vast amounts of unlabeled data. This data is challenging to interpret, and manual annotation is…

机器学习 · 计算机科学 2025-05-09 Soham Khisa , Avijoy Chakma

This work presents an analysis of the hidden representations of Variational Autoencoders (VAEs) using the Intrinsic Dimension (ID) and the Information Imbalance (II). We show that VAEs undergo a transition in behaviour once the bottleneck…

机器学习 · 计算机科学 2024-11-05 Charles Camboulin , Diego Doimo , Aldo Glielmo

Explanations are crucial parts of deep neural network (DNN) classifiers. In high stakes applications, faithful and robust explanations are important to understand and gain trust in DNN classifiers. However, recent work has shown that…

机器学习 · 计算机科学 2022-12-20 Adam Ivankay , Mattia Rigotti , Ivan Girardi , Chiara Marchiori , Pascal Frossard

Variational Autoencoders (VAEs) have been shown to be remarkably effective in recovering model latent spaces for several computer vision tasks. However, currently trained VAEs, for a number of reasons, seem to fall short in learning…

机器学习 · 计算机科学 2021-07-27 Chandrajit Bajaj , Avik Roy , Haoran Zhang

Adversarial vulnerability remains a major obstacle to constructing reliable NLP systems. When imperceptible perturbations are added to raw input text, the performance of a deep learning model may drop dramatically under attacks. Recent work…

计算与语言 · 计算机科学 2022-10-28 Jiahao Zhao , Wenji Mao

We introduce a framework that integrates variational autoencoders (VAE) with reinforcement learning (RL) to balance system performance and resource usage in multi-agent systems by dynamically adjusting network structures over time. A key…

机器学习 · 计算机科学 2024-11-01 Qiliang Chen , Babak Heydari

As we seek to deploy machine learning models beyond virtual and controlled domains, it is critical to analyze not only the accuracy or the fact that it works most of the time, but if such a model is truly robust and reliable. This paper…

机器学习 · 计算机科学 2020-07-07 Samuel Henrique Silva , Peyman Najafirad

There is a rising interest in studying the robustness of deep neural network classifiers against adversaries, with both advanced attack and defence techniques being actively developed. However, most recent work focuses on discriminative…

机器学习 · 计算机科学 2019-05-28 Yingzhen Li , John Bradshaw , Yash Sharma

Deep Learning (DL) is increasingly used in safety-critical applications, raising concerns about its reliability. DL suffers from a well-known problem of lacking robustness, especially when faced with adversarial perturbations known as…

软件工程 · 计算机科学 2023-09-06 Wei Huang , Xingyu Zhao , Alec Banks , Victoria Cox , Xiaowei Huang

Regularized Auto-Encoders (RAEs) form a rich class of neural generative models. They effectively model the joint-distribution between the data and the latent space using an Encoder-Decoder combination, with regularization imposed in terms…

机器学习 · 计算机科学 2020-09-22 Arnab Kumar Mondal , Himanshu Asnani , Parag Singla , Prathosh AP

The generation of discontinuous distributions is a difficult task for most known frameworks such as generative autoencoders and generative adversarial networks. Generative non-invertible models are unable to accurately generate such…

机器学习 · 计算机科学 2021-12-20 Mariia Drozdova , Vitaliy Kinakh , Guillaume Quétant , Tobias Golling , Slava Voloshynovskiy

Fair and unbiased machine learning is an important and active field of research, as decision processes are increasingly driven by models that learn from data. Unfortunately, any biases present in the data may be learned by the model,…

机器学习 · 计算机科学 2020-02-27 Matthew J. Vowels , Necati Cihan Camgoz , Richard Bowden

Learning from an imbalanced distribution presents a major challenge in predictive modeling, as it generally leads to a reduction in the performance of standard algorithms. Various approaches exist to address this issue, but many of them…

机器学习 · 计算机科学 2024-12-11 Samuel Stocksieker , Denys Pommeret , Arthur Charpentier

The performance of $\beta$-Variational-Autoencoders ($\beta$-VAEs) and their variants on learning semantically meaningful, disentangled representations is unparalleled. On the other hand, there are theoretical arguments suggesting the…

机器学习 · 计算机科学 2021-02-16 Dominik Zietlow , Michal Rolinek , Georg Martius

Adversarial machine learning is a well-studied field of research where an adversary causes predictable errors in a machine learning algorithm through precise manipulation of the input. Numerous techniques have been proposed to harden…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Pratik Vaishnavi , Kevin Eykholt , Atul Prakash , Amir Rahmati
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