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Generative adversarial networks (GANs) have been successfully applied to transfer visual attributes in many domains, including that of human face images. This success is partly attributable to the facts that human faces have similar shapes…

计算机视觉与模式识别 · 计算机科学 2020-10-13 Lei Luo , William Hsu , Shangxian Wang

The goal of anomaly detection is to identify examples that deviate from normal or expected behavior. We tackle this problem for images. We consider a two-phase approach. First, using normal examples, a convolutional autoencoder (CAE) is…

计算机视觉与模式识别 · 计算机科学 2020-03-20 Natasa Sarafijanovic-Djukic , Jesse Davis

Unsupervised disentangled representation learning from the unlabelled audio data, and high fidelity audio generation have become two linchpins in the machine learning research fields. However, the representation learned from an unsupervised…

音频与语音处理 · 电气工程与系统科学 2020-10-20 Kazi Nazmul Haque , Rajib Rana , Björn W Schuller

Most deep latent factor models choose simple priors for simplicity, tractability or not knowing what prior to use. Recent studies show that the choice of the prior may have a profound effect on the expressiveness of the model,especially…

机器学习 · 计算机科学 2019-09-11 Hui-Po Wang , Wen-Hsiao Peng , Wei-Jan Ko

In this work, we propose a novel Generative Adversarial Stacked Autoencoder that learns to map facial expressions, with up to plus or minus 60 degrees, to an illumination invariant facial representation of 0 degrees. We accomplish this by…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Ariel Ruiz-Garcia , Vasile Palade , Mark Elshaw , Mariette Awad

By composing graphical models with deep learning architectures, we learn generative models with the strengths of both frameworks. The structured variational autoencoder (SVAE) inherits structure and interpretability from graphical models,…

机器学习 · 计算机科学 2023-11-15 Harry Bendekgey , Gabriel Hope , Erik B. Sudderth

In end-to-end optimized learned image compression, it is standard practice to use a convolutional variational autoencoder with generalized divisive normalization (GDN) to transform images into a latent space. Recently, Operational Neural…

图像与视频处理 · 电气工程与系统科学 2021-05-31 M. Akın Yılmaz , Onur Keleş , Hilal Güven , A. Murat Tekalp , Junaid Malik , Serkan Kıranyaz

We propose a framework for the statistical evaluation of variational auto-encoders (VAEs) and test two instances of this framework in the context of modelling images of handwritten digits and a corpus of English text. Our take on evaluation…

机器学习 · 计算机科学 2022-04-08 Claartje Barkhof , Wilker Aziz

Variational Autoencoders (VAEs) are well-established as a principled approach to probabilistic unsupervised learning with neural networks. Typically, an encoder network defines the parameters of a Gaussian distributed latent space from…

机器学习 · 计算机科学 2025-05-16 Alan Jeffares , Liyuan Liu

In this paper we present a new implementation of a Variational Autoencoder (VAE) for the calibration of sensors. We propose that the VAE can be used to calibrate sensor data by training the latent space as a calibration output. We discuss…

机器学习 · 计算机科学 2025-11-04 Travis Barrett , Amit Kumar Mishra , Joyce Mwangama

Autoencoders learn data representations (codes) in such a way that the input is reproduced at the output of the network. However, it is not always clear what kind of properties of the input data need to be captured by the codes. Kernel…

机器学习 · 统计学 2018-07-24 Michael Kampffmeyer , Sigurd Løkse , Filippo M. Bianchi , Robert Jenssen , Lorenzo Livi

Recent studies have shown remarkable success in face manipulation task with the advance of GANs and VAEs paradigms, but the outputs are sometimes limited to low-resolution and lack of diversity. In this work, we propose Additive Focal…

计算机视觉与模式识别 · 计算机科学 2019-08-21 Shengju Qian , Kwan-Yee Lin , Wayne Wu , Yangxiaokang Liu , Quan Wang , Fumin Shen , Chen Qian , Ran He

The high cost of acquiring labels is one of the main challenges in deploying supervised machine learning algorithms. Active learning is a promising approach to control the learning process and address the difficulties of data labeling by…

机器学习 · 计算机科学 2019-11-19 Farhad Pourkamali-Anaraki , Michael B. Wakin

Classic variational autoencoders are used to learn complex data distributions, that are built on standard function approximators. Especially, VAE has shown promise on a lot of complex task. In this paper, a new autoencoder model -…

计算机视觉与模式识别 · 计算机科学 2020-01-13 Qiuyu Zhu , Ruixin Zhang

The paper presents the application of Variational Autoencoders (VAE) for data dimensionality reduction and explorative analysis of mass spectrometry imaging data (MSI). The results confirm that VAEs are capable of detecting the patterns…

定量方法 · 定量生物学 2017-08-25 Paolo Inglese , James L. Alexander , Anna Mroz , Zoltan Takats , Robert Glen

Intelligent behaviour in the real-world requires the ability to acquire new knowledge from an ongoing sequence of experiences while preserving and reusing past knowledge. We propose a novel algorithm for unsupervised representation learning…

Euclidean geometry has historically been the typical "workhorse" for machine learning applications due to its power and simplicity. However, it has recently been shown that geometric spaces with constant non-zero curvature improve…

机器学习 · 计算机科学 2020-02-14 Ondrej Skopek , Octavian-Eugen Ganea , Gary Bécigneul

In this paper, we show that the performance of a learnt generative model is closely related to the model's ability to accurately represent the inferred \textbf{latent data distribution}, i.e. its topology and structural properties. We…

计算机视觉与模式识别 · 计算机科学 2020-09-02 Shuyu Lin , Ronald Clark

Probabilistic generative models are attractive for scientific modeling because their inferred parameters can be used to generate hypotheses and design experiments. This requires that the learned model provide an accurate representation of…

机器学习 · 统计学 2023-01-18 Liyun Tu , Austin Talbot , Neil Gallagher , David Carlson

In this work, we explore regions as a potential visual analogue of words for self-supervised image representation learning. Inspired by Masked Autoencoding (MAE), a generative pre-training baseline, we propose masked region autoencoding to…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Duy-Kien Nguyen , Vaibhav Aggarwal , Yanghao Li , Martin R. Oswald , Alexander Kirillov , Cees G. M. Snoek , Xinlei Chen