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Aims. To develop a fully Bayesian least squares deconvolution (LSD) that can be applied to the reliable detection of magnetic signals in noise-limited stellar spectropolarimetric observations using multiline techniques. Methods. We consider…

太阳与恒星天体物理 · 物理学 2015-11-04 A. Asensio Ramos , P. Petit

Learning disentangled representations without supervision or inductive biases, often leads to non-interpretable or undesirable representations. On the other hand, strict supervision requires detailed knowledge of the true generative…

机器学习 · 计算机科学 2020-08-25 Vasilis Margonis , Athanasios Davvetas , Iraklis A. Klampanos

Disentangled visual representations have largely been studied with generative models such as Variational AutoEncoders (VAEs). While prior work has focused on generative methods for disentangled representation learning, these approaches do…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Andrea Burns , Aaron Sarna , Dilip Krishnan , Aaron Maschinot

Recently, self-supervised metric learning has raised attention for the potential to learn a generic distance function. It overcomes the limitations of conventional supervised one, e.g., scalability and label biases. Despite progress in this…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Jiantao Wu , Shentong Mo , Sara Atito , Josef Kittler , Zhenhua Feng , Muhammad Awais

Deep generative models come with the promise to learn an explainable representation for visual objects that allows image sampling, synthesis, and selective modification. The main challenge is to learn to properly model the independent…

计算机视觉与模式识别 · 计算机科学 2019-10-24 Patrick Esser , Johannes Haux , Björn Ommer

A large part of the literature on learning disentangled representations focuses on variational autoencoders (VAE). Recent developments demonstrate that disentanglement cannot be obtained in a fully unsupervised setting without inductive…

机器学习 · 计算机科学 2021-02-11 Graziano Mita , Maurizio Filippone , Pietro Michiardi

With its significant performance improvements, the deep learning paradigm has become a standard tool for modern image denoisers. While promising performance has been shown on seen noise distributions, existing approaches often suffer from…

计算机视觉与模式识别 · 计算机科学 2023-09-12 Hao Chen , Chenyuan Qu , Yu Zhang , Chen Chen , Jianbo Jiao

Face recognition embeddings encode identity, but they also encode other factors such as gender and ethnicity. Depending on how these factors are used by a downstream system, separating them from the information needed for verification is…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Ünsal Öztürk , Vedrana Krivokuća Hahn , Sushil Bhattacharjee , Sébastien Marcel

A variational autoencoder (VAE) derived from Tsallis statistics called q-VAE is proposed. In the proposed method, a standard VAE is employed to statistically extract latent space hidden in sampled data, and this latent space helps make…

机器学习 · 计算机科学 2021-08-27 Taisuke Kobayashi

Originally introduced in the fluid mechanics community, dynamic mode decomposition (DMD) has emerged as a powerful tool for analyzing the dynamics of nonlinear systems. However, existing DMD theory deals primarily with sequential time…

Disentangling the explanatory factors in complex data is a promising approach for generalizable and data-efficient representation learning. While a variety of quantitative metrics for learning and evaluating disentangled representations…

机器学习 · 计算机科学 2024-11-01 Yivan Zhang , Masashi Sugiyama

Tools to generate high quality synthetic speech signal that is perceptually indistinguishable from speech recorded from human speakers are easily available. Several approaches have been proposed for detecting synthetic speech. Many of these…

Line segment detection is a fundamental low-level task in computer vision, and improvements in this task can impact more advanced methods that depend on it. Most new methods developed for line segment detection are based on Convolutional…

计算机视觉与模式识别 · 计算机科学 2024-11-21 Sebastian Janampa , Marios Pattichis

We propose an unsupervised learning method to disentangle speech into content representation and speaker identity representation. We apply this method to the challenging one-shot cross-lingual voice conversion task to demonstrate the…

音频与语音处理 · 电气工程与系统科学 2022-10-26 Hui Lu , Disong Wang , Xixin Wu , Zhiyong Wu , Xunying Liu , Helen Meng

We propose a method to disentangle linear-encoded facial semantics from StyleGAN without external supervision. The method derives from linear regression and sparse representation learning concepts to make the disentangled latent…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Yutong Zheng , Yu-Kai Huang , Ran Tao , Zhiqiang Shen , Marios Savvides

Extracting structured representations from raw visual data is an important and long-standing challenge in machine learning. Recently, techniques for unsupervised learning of object-centric representations have raised growing interest. In…

计算机视觉与模式识别 · 计算机科学 2025-01-24 Riccardo Majellaro , Jonathan Collu , Aske Plaat , Thomas M. Moerland

Machine learning analysis of longitudinal neuroimaging data is typically based on supervised learning, which requires a large number of ground-truth labels to be informative. As ground-truth labels are often missing or expensive to obtain…

机器学习 · 计算机科学 2021-06-29 Qingyu Zhao , Zixuan Liu , Ehsan Adeli , Kilian M. Pohl

We propose a novel approach to jointly perform 3D shape retrieval and pose estimation from monocular images.In order to make the method robust to real-world image variations, e.g. complex textures and backgrounds, we learn an embedding…

计算机视觉与模式识别 · 计算机科学 2019-03-28 Kyaw Zaw Lin , Weipeng Xu , Qianru Sun , Christian Theobalt , Tat-Seng Chua

Disentangled representation learning has been proposed as an approach to learning general representations even in the absence of, or with limited, supervision. A good general representation can be fine-tuned for new target tasks using…

计算机视觉与模式识别 · 计算机科学 2022-08-01 Xiao Liu , Pedro Sanchez , Spyridon Thermos , Alison Q. O'Neil , Sotirios A. Tsaftaris

Multimodal representation learning seeks to relate and decompose information inherent in multiple modalities. By disentangling modality-specific information from information that is shared across modalities, we can improve interpretability…

机器学习 · 计算机科学 2025-03-18 Chenyu Wang , Sharut Gupta , Xinyi Zhang , Sana Tonekaboni , Stefanie Jegelka , Tommi Jaakkola , Caroline Uhler