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We consider the task of estimating variational autoencoders (VAEs) when the training data is incomplete. We show that missing data increases the complexity of the model's posterior distribution over the latent variables compared to the…

机器学习 · 计算机科学 2024-06-28 Vaidotas Simkus , Michael U. Gutmann

The development of deep learning models in medical image analysis is majorly limited by the lack of large-sized and well-annotated datasets. Unsupervised learning does not require labels and is more suitable for solving medical image…

计算机视觉与模式识别 · 计算机科学 2023-01-06 Zi'an Xu , Yin Dai , Fayu Liu , Weibing Chen , Yue Liu , Lifu Shi , Sheng Liu , Yuhang Zhou

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

Distributed learning and Edge AI necessitate efficient data processing, low-latency communication, decentralized model training, and stringent data privacy to facilitate real-time intelligence on edge devices while reducing dependency on…

机器学习 · 计算机科学 2025-07-08 Lucas Heublein , Simon Kocher , Tobias Feigl , Alexander Rügamer , Christopher Mutschler , Felix Ott

A new approach for blind channel equalization and decoding, variational inference, and variational autoencoders (VAEs) in particular, is introduced. We first consider the reconstruction of uncoded data symbols transmitted over a noisy…

机器学习 · 计算机科学 2020-04-14 Avi Caciularu , David Burshtein

We propose a variational autoencoder architecture to model both ignorable and nonignorable missing data using pattern-set mixtures as proposed by Little (1993). Our model explicitly learns to cluster the missing data into missingness…

机器学习 · 统计学 2021-03-08 Sahra Ghalebikesabi , Rob Cornish , Luke J. Kelly , Chris Holmes

Anomaly detection in images plays a significant role for many applications across all industries, such as disease diagnosis in healthcare or quality assurance in manufacturing. Manual inspection of images, when extended over a monotonously…

计算机视觉与模式识别 · 计算机科学 2021-07-21 Vincent Wilmet , Sauraj Verma , Tabea Redl , Håkon Sandaker , Zhenning Li

Detecting anomalies for multivariate time-series without manual supervision continues a challenging problem due to the increased scale of dimensions and complexity of today's IT monitoring systems. Recent progress of unsupervised…

机器学习 · 计算机科学 2021-10-19 Qinfeng Xiao , Shikuan Shao , Jing Wang

As in many fields of medical research, survival analysis has witnessed a growing interest in the application of deep learning techniques to model complex, high-dimensional, heterogeneous, incomplete, and censored medical data. Current…

机器学习 · 计算机科学 2023-12-25 Patricia A. Apellániz , Juan Parras , Santiago Zazo

Interpretable machine learning is rapidly becoming a crucial tool for scientific discovery. Among existing approaches, variational autoencoders (VAEs) have shown promise in extracting the hidden physical features of some input data, with no…

We present a novel method for constructing Variational Autoencoder (VAE). Instead of using pixel-by-pixel loss, we enforce deep feature consistency between the input and the output of a VAE, which ensures the VAE's output to preserve the…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Xianxu Hou , Linlin Shen , Ke Sun , Guoping Qiu

Many real-world monitoring and surveillance applications require non-trivial anomaly detection to be run in the streaming model. We consider an incremental-learning approach, wherein a deep-autoencoding (DAE) model of what is normal is…

计算机视觉与模式识别 · 计算机科学 2019-12-11 Albert Akhriev , Jakub Marecek

Deep learning is a kind of feature learning method with strong nonliear feature transformation and becomes more and more important in many fields of artificial intelligence. Deep autoencoder is one representative method of the deep learning…

机器学习 · 计算机科学 2020-02-18 Yongming Li , Yan Lei , Pin Wang , Yuchuan Liu

In recent years, speech emotion recognition (SER) has been used in wide ranging applications, from healthcare to the commercial sector. In addition to signal processing approaches, methods for SER now also use deep learning techniques which…

音频与语音处理 · 电气工程与系统科学 2022-03-29 Sneha Das , Nicole Nadine Lønfeldt , Anne Katrine Pagsberg , Line H. Clemmensen

Deep learning has made significant strides in medical imaging, leveraging the use of large datasets to improve diagnostics and prognostics. However, large datasets often come with inherent errors through subject selection and acquisition.…

Deep latent variable models (DLVMs) combine the approximation abilities of deep neural networks and the statistical foundations of generative models. Variational methods are commonly used for inference; however, the exact likelihood of…

机器学习 · 统计学 2018-06-29 Pierre-Alexandre Mattei , Jes Frellsen

Increasing volume of Electronic Health Records (EHR) in recent years provides great opportunities for data scientists to collaborate on different aspects of healthcare research by applying advanced analytics to these EHR clinical data. A…

机器学习 · 计算机科学 2019-09-23 Najibesadat Sadati , Milad Zafar Nezhad , Ratna Babu Chinnam , Dongxiao Zhu

The integration of multi-modal Magnetic Resonance Imaging (MRI) and clinical data holds great promise for enhancing the diagnosis of neurological disorders (NDs) in real-world clinical settings. Deep Learning (DL) has recently emerged as a…

图像与视频处理 · 电气工程与系统科学 2025-06-19 Wajih Hassan Raza , Aamir Bader Shah , Yu Wen , Yidan Shen , Juan Diego Martinez Lemus , Mya Caryn Schiess , Timothy Michael Ellmore , Renjie Hu , Xin Fu

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

The detection and localization of possible diseases in crops are usually automated by resorting to supervised deep learning approaches. In this work, we tackle these goals with unsupervised models, by applying three different types of…

计算机视觉与模式识别 · 计算机科学 2022-10-10 Davide Calabrò , Massimiliano Lupo Pasini , Nicola Ferro , Simona Perotto