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This paper proposes a method for performing continual learning of predictive models that facilitate the inference of future frames in video sequences. For a first given experience, an initial Variational Autoencoder, together with a set of…

Computer Vision and Pattern Recognition · Computer Science 2020-06-04 Damian Campo , Giulia Slavic , Mohamad Baydoun , Lucio Marcenaro , Carlo Regazzoni

Channel-gain maps provide the channel gain between any two locations in a geographical region. They find numerous applications, from resource allocation and interference control to path planning for autonomous vehicles. Channel-gain map…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Prasenjit Dhara , Daniel Romero

Learning on synthetic data and transferring the resulting properties to their real counterparts is an important challenge for reducing costs and increasing safety in machine learning. In this work, we focus on autoencoder architectures and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Steve Dias Da Cruz , Bertram Taetz , Thomas Stifter , Didier Stricker

We propose a new type of variational autoencoder to perform improved pre-processing for clustering and anomaly detection on data with a given label. Anomalies however are not known or labeled. We call our method conditional latent space…

Machine Learning · Computer Science 2019-12-02 Erik Norlander , Alexandros Sopasakis

Variational Autoencoders (VAEs) are powerful generative models that have been widely used in various fields, including image and text generation. However, one of the known challenges in using VAEs is the model's sensitivity to its…

Machine Learning · Computer Science 2024-12-31 Gabriela Sejnova , Michal Vavrecka , Karla Stepanova

Channel charting (CC) has been proposed recently to enable logical positioning of user equipments (UEs) in the neighborhood of a multi-antenna base-station solely from channel-state information (CSI). CC relies on dimensionality reduction…

Signal Processing · Electrical Eng. & Systems 2019-08-09 Pengzhi Huang , Oscar Castañeda , Emre Gönültaş , Saïd Medjkouh , Olav Tirkkonen , Tom Goldstein , Christoph Studer

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…

Machine Learning · Statistics 2019-04-15 Aditya Grover , Stefano Ermon

Quantum autoencoder is an efficient variational quantum algorithm for quantum data compression. However, previous quantum autoencoders fail to compress and recover high-rank mixed states. In this work, we discuss the fundamental properties…

Quantum Physics · Physics 2021-05-07 Chenfeng Cao , Xin Wang

This paper proposes a novel deep learning-based error correction coding scheme for AWGN channels under the constraint of one-bit quantization in the receivers. Specifically, it is first shown that the optimum error correction code that…

Information Theory · Computer Science 2019-09-27 Eren Balevi , Jeffrey G. Andrews

Variational autoencoders (VAEs) have been used extensively to discover low-dimensional latent factors governing neural activity and animal behavior. However, without careful model selection, the uncovered latent factors may reflect noise in…

Machine Learning · Computer Science 2023-12-13 Julia Huiming Wang , Dexter Tsin , Tatiana Engel

Accurate P-wave detection is critical for earthquake early warning, yet strong-motion records pose challenges due to high noise levels, limited labeled data, and complex waveform characteristics. This study reframes P-wave arrival detection…

Machine Learning · Computer Science 2026-01-12 Turkan Simge Ispak , Salih Tileylioglu , Erdem Akagunduz

In this paper, we propose to pre-train audio encoders using synthetic patterns instead of real audio data. Our proposed framework consists of two key elements. The first one is Masked Autoencoder (MAE), a self-supervised learning framework…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-02 Yuchi Ishikawa , Tatsuya Komatsu , Yoshimitsu Aoki

Variational autoencoders allow to learn a lower-dimensional latent space based on high-dimensional input/output data. Using video clips as input data, the encoder may be used to describe the movement of an object in the video without ground…

Machine Learning · Computer Science 2023-05-17 Thomas Beckers , Qirui Wu , George J. Pappas

This brief study focuses on the application of autoencoders to improve the quality of low-amplitude signals, such as gravitational events. A pre-existing autoencoder was trained using cosmic event data, optimizing its architecture and…

Machine Learning · Computer Science 2025-10-02 Fernanda Zapata Bascuñán , Darío Fernando Mendieta

End-to-end learning of communication systems enables joint optimization of transmitter and receiver, implemented as deep neural network-based autoencoders, over any type of channel and for an arbitrary performance metric. Recently, an…

Information Theory · Computer Science 2019-06-25 Mathieu Goutay , Fayçal Ait Aoudia , Jakob Hoydis

In this paper, we propose a neural-network-based realistic channel model with both the similar accuracy as deterministic channel models and uniformity as stochastic channel models. To facilitate this realistic channel modeling, a…

Signal Processing · Electrical Eng. & Systems 2019-07-23 Yourui Huangfu , Jian Wang , Chen Xu , Rong Li , Yiqun Ge , Xianbin Wang , Huazi Zhang , Jun Wang

This paper designs hybrid analog-digital channel estimation and beamforming techniques for multiuser massive multiple input multiple output (MIMO) systems with limited number of radio frequency (RF) chains. For these systems, first we…

Information Theory · Computer Science 2016-11-15 Tadilo Endeshaw Bogale , Long Bao , Xianbin Wang

Channel estimation is fundamental to wireless communications, yet it becomes increasingly challenging in massive multiple-input multiple-output (MIMO) systems where base stations employ hundreds of antennas. Traditional least-squares…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Pinjun Zheng , Md. Jahangir Hossain , Anas Chaaban

We argue that training autoencoders to reconstruct inputs from noised versions of their encodings, when combined with perceptual losses, yields encodings that are structured according to a perceptual hierarchy. We demonstrate the emergence…

Sound · Computer Science 2025-11-11 Mathias Rose Bjare , Giorgia Cantisani , Marco Pasini , Stefan Lattner , Gerhard Widmer

Convolutional autoencoders are now at the forefront of image compression research. To improve their entropy coding, encoder output is typically analyzed with a second autoencoder to generate per-variable parametrized prior probability…

Image and Video Processing · Electrical Eng. & Systems 2021-11-18 Benoit Brummer , Christophe De Vleeschouwer