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In order to build language technologies for majority of the languages, it is important to leverage the resources available in public domain on the internet - commonly referred to as `Found Data'. However, such data is characterized by the…

音频与语音处理 · 电气工程与系统科学 2019-09-27 Nishant Gurunath , Sai Krishna Rallabandi , Alan Black

As one of the most popular generative models, Variational Autoencoder (VAE) approximates the posterior of latent variables based on amortized variational inference. However, when the decoder network is sufficiently expressive, VAE may lead…

机器学习 · 计算机科学 2021-10-26 Dazhong Shen , Chuan Qin , Chao Wang , Hengshu Zhu , Enhong Chen , Hui Xiong

Unsupervised disentangled representation learning from the unlabelled audio data, and high fidelity audio generation have become two linchpins in the machine learning research fields. However, the representation learned from an unsupervised…

音频与语音处理 · 电气工程与系统科学 2020-10-20 Kazi Nazmul Haque , Rajib Rana , Björn W Schuller

As a widely recognized approach to deep generative modeling, Variational Auto-Encoders (VAEs) still face challenges with the quality of generated images, often presenting noticeable blurriness. This issue stems from the unrealistic…

机器学习 · 计算机科学 2023-05-22 Georgios Batzolis , Jan Stanczuk , Carola-Bibiane Schönlieb

Multi-modal generative models represent an important family of deep models, whose goal is to facilitate representation learning on data with multiple views or modalities. However, current deep multi-modal models focus on the inference of…

计算机视觉与模式识别 · 计算机科学 2020-12-25 Mihee Lee , Vladimir Pavlovic

Improving controllability or the ability to manipulate one or more attributes of the generated data has become a topic of interest in the context of deep generative models of music. Recent attempts in this direction have relied on learning…

声音 · 计算机科学 2021-08-04 Ashis Pati , Alexander Lerch

This study builds on the architecture of the Disentangler of Visual Priors (DVP), a type of autoencoder that learns to interpret scenes by decomposing the perceived objects into independent visual aspects of shape, size, orientation, and…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Antoni Nowinowski , Krzysztof Krawiec

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

Unlearnable examples (UEs) seek to maximize testing error by making subtle modifications to training examples that are correctly labeled. Defenses against these poisoning attacks can be categorized based on whether specific interventions…

密码学与安全 · 计算机科学 2024-05-07 Yi Yu , Yufei Wang , Song Xia , Wenhan Yang , Shijian Lu , Yap-Peng Tan , Alex C. Kot

The problem of feature disentanglement has been explored in the literature, for the purpose of image and video processing and text analysis. State-of-the-art methods for disentangling feature representations rely on the presence of many…

机器学习 · 计算机科学 2017-11-28 Ershad Banijamali , Amir-Hossein Karimi , Alexander Wong , Ali Ghodsi

In this work we address disentanglement of style and content in speech signals. We propose a fully convolutional variational autoencoder employing two encoders: a content encoder and a style encoder. To foster disentanglement, we propose…

音频与语音处理 · 电气工程与系统科学 2021-03-12 Janek Ebbers , Michael Kuhlmann , Tobias Cord-Landwehr , Reinhold Haeb-Umbach

Recently, variational autoencoder (VAE), a deep representation learning (DRL) model, has been used to perform speech enhancement (SE). However, to the best of our knowledge, current VAE-based SE methods only apply VAE to the model speech…

音频与语音处理 · 电气工程与系统科学 2022-01-25 Yang Xiang , Jesper Lisby Højvang , Morten Højfeldt Rasmussen , Mads Græsbøll Christensen

We construct an unsupervised learning model that achieves nonlinear disentanglement of underlying factors of variation in naturalistic videos. Previous work suggests that representations can be disentangled if all but a few factors in the…

Sensory data are often comprised of independent content and transformation factors. For example, face images may have shapes as content and poses as transformation. To infer separately these factors from given data, various…

机器学习 · 计算机科学 2021-01-26 Haruo Hosoya

Variational autoencoders (VAEs) are widely used deep generative models capable of learning unsupervised latent representations of data. Such representations are often difficult to interpret or control. We consider the problem of…

机器学习 · 计算机科学 2018-12-18 Jack Klys , Jake Snell , Richard Zemel

Variational Autoencoders (VAE) and their variants have been widely used in a variety of applications, such as dialog generation, image generation and disentangled representation learning. However, the existing VAE models have some…

机器学习 · 计算机科学 2020-06-23 Huajie Shao , Shuochao Yao , Dachun Sun , Aston Zhang , Shengzhong Liu , Dongxin Liu , Jun Wang , Tarek Abdelzaher

The recently developed variational autoencoders (VAEs) have proved to be an effective confluence of the rich representational power of neural networks with Bayesian methods. However, most work on VAEs use a rather simple prior over the…

机器学习 · 计算机科学 2017-08-29 Prasoon Goyal , Zhiting Hu , Xiaodan Liang , Chenyu Wang , Eric Xing

The variational autoencoder (VAE) is a powerful generative model that can estimate the probability of a data point by using latent variables. In the VAE, the posterior of the latent variable given the data point is regularized by the prior…

机器学习 · 统计学 2019-12-30 Hiroshi Takahashi , Tomoharu Iwata , Yuki Yamanaka , Masanori Yamada , Satoshi Yagi

The surrogate loss of variational autoencoders (VAEs) poses various challenges to their training, inducing the imbalance between task fitting and representation inference. To avert this, the existing strategies for VAEs focus on adjusting…

神经与进化计算 · 计算机科学 2024-04-02 Zhangkai Wu , Longbing Cao , Lei Qi

Variational Auto-encoders (VAEs) have been very successful as methods for forming compressed latent representations of complex, often high-dimensional, data. In this paper, we derive an alternative variational lower bound from the one…

机器学习 · 计算机科学 2019-03-20 Shuyu Lin , Ronald Clark , Robert Birke , Niki Trigoni , Stephen Roberts