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In this paper, we propose a novel reference based image super-resolution approach via Variational AutoEncoder (RefVAE). Existing state-of-the-art methods mainly focus on single image super-resolution which cannot perform well on large…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Zhi-Song Liu , Wan-Chi Siu , Li-Wen Wang

Transductive methods always outperform inductive methods in few-shot image classification scenarios. However, the existing few-shot methods contain a latent condition: the number of samples in each class is the same, which may be…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Zaiyun Yang

We describe a novel weakly supervised deep learning framework that combines both the discriminative and generative models to learn meaningful representation in the multiple instance learning (MIL) setting. MIL is a weakly supervised…

Machine Learning · Computer Science 2018-07-09 Shabnam Ghaffarzadegan

Self-supervised learning through masked autoencoders (MAEs) has recently attracted great attention for remote sensing (RS) image representation learning, and thus embodies a significant potential for content-based image retrieval (CBIR)…

Image and Video Processing · Electrical Eng. & Systems 2024-12-13 Jakob Hackstein , Gencer Sumbul , Kai Norman Clasen , Begüm Demir

As machine learning based systems become more integrated into daily life, they unlock new opportunities but face the challenge of adapting to dynamic data environments. Various forms of data shift-gradual, abrupt, or cyclic-threaten model…

Machine Learning · Computer Science 2025-06-04 Bonpagna Kann , Sandra Castellanos-Paez , Romain Rombourg , Philippe Lalanda

Variational autoencoders (VAEs) are a popular generative model used to approximate distributions. The encoder part of the VAE is used in amortized learning of latent variables, producing a latent representation for data samples. Recently,…

Machine Learning · Statistics 2023-05-12 Daniel G. Edelberg , Roy R. Lederman

We present a new generative autoencoder model with dual contradistinctive losses to improve generative autoencoder that performs simultaneous inference (reconstruction) and synthesis (sampling). Our model, named dual contradistinctive…

Computer Vision and Pattern Recognition · Computer Science 2020-11-23 Gaurav Parmar , Dacheng Li , Kwonjoon Lee , Zhuowen Tu

Image change detection (ICD) to detect changed objects in front of a vehicle with respect to a place-specific background model using an on-board monocular vision system is a fundamental problem in intelligent vehicle (IV). From the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Yamaguchi Kousuke , Tanaka Kanji , Sugimoto Takuma , Ide Rino , Takeda Koji

Human face exhibits an inherent hierarchy in its representations (i.e., holistic facial expressions can be encoded via a set of facial action units (AUs) and their intensity). Variational (deep) auto-encoders (VAE) have shown great results…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Dieu Linh Tran , Robert Walecki , Ognjen Rudovic , Stefanos Eleftheriadis , Bjørn Schuller , Maja Pantic

We take steps towards understanding the "posterior collapse (PC)" difficulty in variational autoencoders (VAEs),~i.e. a degenerate optimum in which the latent codes become independent of their corresponding inputs. We rely on calculus of…

Machine Learning · Computer Science 2019-08-01 Octavian-Eugen Ganea , Yashas Annadani , Gary Bécigneul

We present a detailed study on Variational Autoencoders (VAEs) for anomalous jet tagging at the Large Hadron Collider. By taking in low-level jet constituents' information, and training with background QCD jets in an unsupervised manner,…

High Energy Physics - Phenomenology · Physics 2023-01-05 Taoli Cheng , Jean-François Arguin , Julien Leissner-Martin , Jacinthe Pilette , Tobias Golling

Variational autoencoder-based voice conversion (VAE-VC) has the advantage of requiring only pairs of speeches and speaker labels for training. Unlike the majority of the research in VAE-VC which focuses on utilizing auxiliary losses or…

Sound · Computer Science 2021-12-07 Kei Akuzawa , Kotaro Onishi , Keisuke Takiguchi , Kohki Mametani , Koichiro Mori

We propose an out-of-distribution detection method that combines density and restoration-based approaches using Vector-Quantized Variational Auto-Encoders (VQ-VAEs). The VQ-VAE model learns to encode images in a categorical latent space.…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Sergio Naval Marimont , Giacomo Tarroni

The variational auto-encoder (VAE) is a popular method for learning a generative model and embeddings of the data. Many real datasets are hierarchically structured. However, traditional VAEs map data in a Euclidean latent space which cannot…

Machine Learning · Statistics 2019-11-27 Emile Mathieu , Charline Le Lan , Chris J. Maddison , Ryota Tomioka , Yee Whye Teh

In today's digital world, the generation of vast amounts of streaming data in various domains has become ubiquitous. However, many of these data are unlabeled, making it challenging to identify events, particularly anomalies. This task…

Machine Learning · Computer Science 2026-02-16 Jin Li , Kleanthis Malialis , Christos G. Panayiotou , Marios M. Polycarpou

Catastrophic forgetting in neural networks during incremental learning remains a challenging problem. Previous research investigated catastrophic forgetting in fully connected networks, with some earlier work exploring activation functions…

Machine Learning · Computer Science 2023-03-15 Jiahao Huo , Terence L. van Zyl

Large and well-annotated datasets are essential for advancing deep learning applications, however often costly or impossible to obtain by a single entity. In many areas, including the medical domain, approaches relying on data sharing have…

Machine Learning · Computer Science 2024-08-02 Francesco Di Salvo , David Tafler , Sebastian Doerrich , Christian Ledig

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…

Robotics · Computer Science 2018-09-18 Kaixin Hu , Peter O'Connor

We propose a new family of optimization criteria for variational auto-encoding models, generalizing the standard evidence lower bound. We provide conditions under which they recover the data distribution and learn latent features, and…

Machine Learning · Computer Science 2017-03-01 Shengjia Zhao , Jiaming Song , Stefano Ermon

Recommendation models are typically trained on observational user interaction data, but the interactions between latent factors in users' decision-making processes lead to complex and entangled data. Disentangling these latent factors to…

Information Retrieval · Computer Science 2023-04-18 Siyu Wang , Xiaocong Chen , Quan Z. Sheng , Yihong Zhang , Lina Yao