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Variational Autoencoders (VAEs) constitute a crucial component of neural symbolic music generation, among which some works have yielded outstanding results and attracted considerable attention. Nevertheless, previous VAEs still encounter…

声音 · 计算机科学 2024-01-17 Zhiwei Lin , Jun Chen , Boshi Tang , Binzhu Sha , Jing Yang , Yaolong Ju , Fan Fan , Shiyin Kang , Zhiyong Wu , Helen Meng

Variational auto-encoders are powerful probabilistic models in generative tasks but suffer from generating low-quality samples which are caused by the holes in the prior. We propose the Coupled Variational Auto-Encoder (C-VAE), which…

机器学习 · 统计学 2023-06-06 Xiaoran Hao , Patrick Shafto

Quantitative imaging methods, such as magnetic resonance fingerprinting (MRF), aim to extract interpretable pathology biomarkers by estimating biophysical tissue parameters from signal evolutions. However, the pattern-matching algorithms or…

Variational Autoencoders (VAEs) typically rely on a probabilistic decoder with a predefined likelihood, most commonly an isotropic Gaussian, to model the data conditional on latent variables. While convenient for optimization, this choice…

机器学习 · 统计学 2025-04-29 Chen Xu , Qiang Wang , Lijun Sun

Most visual generative models compress images into a latent space before applying diffusion or autoregressive modelling. Yet, existing approaches such as VAEs and foundation model aligned encoders implicitly constrain the latent space…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Sen Ye , Jianning Pei , Mengde Xu , Shuyang Gu , Chunyu Wang , Liwei Wang , Han Hu

This paper introduces a new interpretation of the Variational Autoencoder framework by taking a fully geometric point of view. We argue that vanilla VAE models unveil naturally a Riemannian structure in their latent space and that taking…

机器学习 · 统计学 2022-11-04 Clément Chadebec , Stéphanie Allassonnière

Recent state-of-the-art autoencoder based generative models have an encoder-decoder structure and learn a latent representation with a pre-defined distribution that can be sampled from. Implementing the encoder networks of these models in a…

机器学习 · 计算机科学 2020-05-11 D. T. Braithwaite , M. O'Connor , W. B. Kleijn

Purpose: Handling heterogeneous and mixed data types has become increasingly critical with the exponential growth in real-world databases. While deep generative models attempt to merge diverse data views into a common latent space, they…

We introduce the variational graph auto-encoder (VGAE), a framework for unsupervised learning on graph-structured data based on the variational auto-encoder (VAE). This model makes use of latent variables and is capable of learning…

机器学习 · 统计学 2016-11-23 Thomas N. Kipf , Max Welling

This paper aims to conduct a comparative analysis of contemporary Variational Autoencoder (VAE) architectures employed in anomaly detection, elucidating their performance and behavioral characteristics within this specific task. The…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Huy Hoang Nguyen , Cuong Nhat Nguyen , Xuan Tung Dao , Quoc Trung Duong , Dzung Pham Thi Kim , Minh-Tan Pham

We consider the matrix composite materials (CM) of either random (statistically homogeneous or inhomogeneous), periodic, or deterministic (neither random nor periodic) structures. CMs exhibit linear or nonlinear behavior, coupled or…

经典物理 · 物理学 2025-12-23 Valeriy A. Buryachenko

Recently generative models have focused on combining the advantages of variational autoencoders (VAE) and generative adversarial networks (GAN) for good reconstruction and generative abilities. In this work we introduce a novel hybrid…

机器学习 · 计算机科学 2019-10-01 Prateek Munjal , Akanksha Paul , Narayanan C. Krishnan

Multi-agent coordination is crucial for reliable multi-robot navigation in shared spaces such as automated warehouses. In regions of dense robot traffic, local coordination methods may fail to find a deadlock-free solution. In these…

机器人学 · 计算机科学 2025-03-06 Yue Meng , Nathalie Majcherczyk , Wenliang Liu , Scott Kiesel , Chuchu Fan , Federico Pecora

We introduce the vine copula autoencoder (VCAE), a flexible generative model for high-dimensional distributions built in a straightforward three-step procedure. First, an autoencoder (AE) compresses the data into a lower dimensional…

机器学习 · 统计学 2019-11-28 Natasa Tagasovska , Damien Ackerer , Thibault Vatter

Variational autoencoders (VAE) represent a popular, flexible form of deep generative model that can be stochastically fit to samples from a given random process using an information-theoretic variational bound on the true underlying…

机器学习 · 计算机科学 2019-10-08 Bin Dai , Yu Wang , John Aston , Gang Hua , David Wipf

Learning interpretable representations of data remains a central challenge in deep learning. When training a deep generative model, the observed data are often associated with certain categorical labels, and, in parallel with learning to…

机器学习 · 计算机科学 2019-10-01 Yifan Xue , Michael Ding , Xinghua Lu

Variational autoencoder (VAE) is a very popular and well-investigated generative model in neural learning research. To leverage VAE in practical tasks dealing with a massive dataset of large dimensions, it is required to deal with the…

机器学习 · 统计学 2021-05-28 Zihao Wang , Hervé Delingette

The variational autoencoder (VAE) framework remains a popular option for training unsupervised generative models, especially for discrete data where generative adversarial networks (GANs) require workaround to create gradient for the…

机器学习 · 计算机科学 2019-04-24 Jason Chou , Gautam Hathi

The Gaussian random field (GRF) and the Gaussian Markov random field (GMRF) have been widely used to accommodate spatial dependence under the generalized linear mixed model framework. These models have limitations rooted in the symmetry and…

统计方法学 · 统计学 2022-12-15 Marcos O. Prates , Dipak K. Dey , Michael R. Willig , Jun Yan

Disentangled representation learning aims to learn low-dimensional representations where each dimension corresponds to an underlying generative factor. While the Variational Auto-Encoder (VAE) is widely used for this purpose, most existing…

机器学习 · 计算机科学 2024-12-31 Di Fan , Yannian Kou , Chuanhou Gao