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This paper presents an innovative approach to mitigating the peak-to-average power ratio (PAPR). The proposed method uses a deep learning model called autoencoders (AEs) to simplify the process and avoid the complex calculations of…

信号处理 · 电气工程与系统科学 2025-03-03 Omar Alnaseri , Ibtesam R. K. Al-Saedi , Yassine Himeur , Hongxiang Li

Traditional mathematical models used in designing next-generation communication systems often fall short due to inherent simplifications, narrow scope, and computational limitations. In recent years, the incorporation of deep learning (DL)…

信号处理 · 电气工程与系统科学 2025-07-14 Omar Alnaseri , Laith Alzubaidi , Yassine Himeur , Mohammed Alaa Ala'anzy , Jens Timmermann , Mohammed S. M. Gismalla

Compressed sensing techniques enable efficient acquisition and recovery of sparse, high-dimensional data signals via low-dimensional projections. In this work, we propose Uncertainty Autoencoders, a learning framework for unsupervised…

机器学习 · 统计学 2019-04-15 Aditya Grover , Stefano Ermon

Due to the limited availability of anomaly examples, video anomaly detection is often seen as one-class classification (OCC) problem. A popular way to tackle this problem is by utilizing an autoencoder (AE) trained only on normal data. At…

计算机视觉与模式识别 · 计算机科学 2021-10-20 Marcella Astrid , Muhammad Zaigham Zaheer , Seung-Ik Lee

We propose a method for learning topology-preserving data representations (dimensionality reduction). The method aims to provide topological similarity between the data manifold and its latent representation via enforcing the similarity in…

This letter introduces a new denoiser that modifies the structure of denoising autoencoder (DAE), namely noise learning based DAE (nlDAE). The proposed nlDAE learns the noise of the input data. Then, the denoising is performed by…

机器学习 · 计算机科学 2022-01-24 Woong-Hee Lee , Mustafa Ozger , Ursula Challita , Ki Won Sung

Classical nonlinear dimensionality reduction (NLDR) techniques like t-SNE, Isomap, and LLE excel at creating low-dimensional embeddings for data visualization but fundamentally lack the ability to map these embeddings back to the original…

机器学习 · 计算机科学 2025-10-16 Riddhish Thakare , Kingdom Mutala Akugri

High dimensionality, i.e. data having a large number of variables, tends to be a challenge for most machine learning tasks, including classification. A classifier usually builds a model representing how a set of inputs explain the outputs.…

机器学习 · 计算机科学 2018-03-12 Francisco J. Pulgar , Francisco Charte , Antonio J. Rivera , María J. del Jesus

Full characterization of the spectral behavior of generative models based on neural networks remains an open issue. Recent research has focused heavily on generative adversarial networks and the high-frequency discrepancies between real and…

机器学习 · 计算机科学 2022-01-20 Sara Björk , Jonas Nordhaug Myhre , Thomas Haugland Johansen

Autoencoders have found widespread application in both their original deterministic form and in their variational formulation (VAEs). In scientific applications and in image processing it is often of interest to consider data that are…

机器学习 · 统计学 2025-09-09 Justin Bunker , Mark Girolami , Hefin Lambley , Andrew M. Stuart , T. J. Sullivan

Neural Networks play a growing role in many science disciplines, including physics. Variational Autoencoders (VAEs) are neural networks that are able to represent the essential information of a high dimensional data set in a low dimensional…

机器学习 · 统计学 2021-12-08 Johannes Zacherl , Philipp Frank , Torsten A. Enßlin

In this paper we introduce a method for significantly improving the signal to noise ratio in financial data. The approach relies on combining a target variable with different context variables and use auto-encoders (AEs) to learn…

统计金融 · 定量金融 2024-08-13 Matthias J. Feiler

Variational autoencoders learn unsupervised data representations, but these models frequently converge to minima that fail to preserve meaningful semantic information. For example, variational autoencoders with autoregressive decoders often…

机器学习 · 计算机科学 2019-05-21 Bryan Seybold , Emily Fertig , Alex Alemi , Ian Fischer

Image registration is an ill-posed inverse problem which often requires regularisation on the solution space. In contrast to most of the current approaches which impose explicit regularisation terms such as smoothness, in this paper we…

图像与视频处理 · 电气工程与系统科学 2020-07-09 Chen Qin , Shuo Wang , Chen Chen , Huaqi Qiu , Wenjia Bai , Daniel Rueckert

Auto-Encoder (AE)-based deep subspace clustering (DSC) methods have achieved impressive performance due to the powerful representation extracted using deep neural networks while prioritizing categorical separability. However,…

计算机视觉与模式识别 · 计算机科学 2021-05-17 Juncheng Lv , Zhao Kang , Xiao Lu , Zenglin Xu

The aim of this work is to use Variational Autoencoder (VAE) to learn a representation of an indoor environment that can be used for robot navigation. We use images extracted from a video, in which a camera takes a tour around a house, for…

机器人学 · 计算机科学 2018-09-18 Kaixin Hu , Peter O'Connor

Unsupervised representation learning via generative modeling is a staple to many computer vision applications in the absence of labeled data. Variational Autoencoders (VAEs) are powerful generative models that learn representations useful…

机器学习 · 计算机科学 2020-03-24 Riddhish Bhalodia , Iain Lee , Shireen Elhabian

In this paper, we present an in-depth investigation of the convolutional autoencoder (CAE) bottleneck. Autoencoders (AE), and especially their convolutional variants, play a vital role in the current deep learning toolbox. Researchers and…

机器学习 · 计算机科学 2020-05-14 Ilja Manakov , Markus Rohm , Volker Tresp

Unsupervised learning is becoming more and more important recently. As one of its key components, the autoencoder (AE) aims to learn a latent feature representation of data which is more robust and discriminative. However, most AE based…

机器学习 · 计算机科学 2019-04-02 Jingcai Guo , Song Guo

Autoencoders have been extensively used in the development of recent anomaly detection techniques. The premise of their application is based on the notion that after training the autoencoder on normal training data, anomalous inputs will…

机器学习 · 计算机科学 2024-03-29 Amin Ghafourian , Huanyi Shui , Devesh Upadhyay , Rajesh Gupta , Dimitar Filev , Iman Soltani Bozchalooi