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Variational autoencoders (VAE) are powerful generative models that learn the latent representations of input data as random variables. Recent studies show that VAE can flexibly learn the complex temporal dynamics of time series and achieve…

Machine Learning · Computer Science 2023-11-14 Borui Cai , Shuiqiao Yang , Longxiang Gao , Yong Xiang

Irregularly sampled time series commonly occur in several domains where they present a significant challenge to standard deep learning models. In this paper, we propose a new deep learning framework for probabilistic interpolation of…

Machine Learning · Computer Science 2024-11-07 Satya Narayan Shukla , Benjamin M. Marlin

Time series forecasting requires architectures that simultaneously achieve three competing objectives: (1) strict temporal causality for reliable predictions, (2) sub-quadratic complexity for practical scalability, and (3) multi-scale…

Machine Learning · Computer Science 2025-11-25 Qianru Zhang , Honggang Wen , Ming Li , Dong Huang , Siu-Ming Yiu , Christian S. Jensen , Pietro Liò

A data-driven framework is proposed towards the end of predictive modeling of complex spatio-temporal dynamics, leveraging nested non-linear manifolds. Three levels of neural networks are used, with the goal of predicting the future state…

Computational Physics · Physics 2020-09-14 Jiayang Xu , Karthik Duraisamy

We propose a multi-resolution convolutional autoencoder (MrCAE) architecture that integrates and leverages three highly successful mathematical architectures: (i) multigrid methods, (ii) convolutional autoencoders and (iii) transfer…

Machine Learning · Computer Science 2020-04-13 Yuying Liu , Colin Ponce , Steven L. Brunton , J. Nathan Kutz

Test-time adaptation allows pretrained models to adjust to incoming data streams, addressing distribution shifts between source and target domains. However, standard methods rely on single-dimensional linear classification layers, which…

Machine Learning · Computer Science 2026-03-27 Sameer Ambekar , Marta Hasny , Laura Daza , Daniel M. Lang , Julia A. Schnabel

Real-time, accurate prediction of human steering behaviors has wide applications, from developing intelligent traffic systems to deploying autonomous driving systems in both real and simulated worlds. In this paper, we present ContextVAE, a…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Pei Xu , Jean-Bernard Hayet , Ioannis Karamouzas

We propose Tree Variational Autoencoder (TreeVAE), a new generative hierarchical clustering model that learns a flexible tree-based posterior distribution over latent variables. TreeVAE hierarchically divides samples according to their…

Machine Learning · Computer Science 2023-11-20 Laura Manduchi , Moritz Vandenhirtz , Alain Ryser , Julia Vogt

Generative modeling of set-structured data, such as point clouds, requires reasoning over local and global structures at various scales. However, adopting multi-scale frameworks for ordinary sequential data to a set-structured data is…

Machine Learning · Computer Science 2021-03-30 Jinwoo Kim , Jaehoon Yoo , Juho Lee , Seunghoon Hong

This paper aims to develop an acoustic signal-based unsupervised anomaly detection method for automatic machine monitoring. Existing approaches such as deep autoencoder (DAE), variational autoencoder (VAE), conditional variational…

Machine Learning · Computer Science 2022-06-14 Harsh Purohit , Takashi Endo , Masaaki Yamamoto , Yohei Kawaguchi

A video prediction model that generalizes to diverse scenes would enable intelligent agents such as robots to perform a variety of tasks via planning with the model. However, while existing video prediction models have produced promising…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Bohan Wu , Suraj Nair , Roberto Martin-Martin , Li Fei-Fei , Chelsea Finn

We propose a multi-layer variational autoencoder method, we call HR-VQVAE, that learns hierarchical discrete representations of the data. By utilizing a novel objective function, each layer in HR-VQVAE learns a discrete representation of…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Mohammad Adiban , Kalin Stefanov , Sabato Marco Siniscalchi , Giampiero Salvi

The task of predicting stochastic behaviors of road agents in diverse environments is a challenging problem for autonomous driving. To best understand scene contexts and produce diverse possible future states of the road agents adaptively…

Machine Learning · Computer Science 2022-01-25 Geunseob Oh , Huei Peng

The Variational Autoencoder (VAE) has proven to be an effective model for producing semantically meaningful latent representations for natural data. However, it has thus far seen limited application to sequential data, and, as we…

Machine Learning · Computer Science 2019-11-12 Adam Roberts , Jesse Engel , Colin Raffel , Curtis Hawthorne , Douglas Eck

Work in deep clustering focuses on finding a single partition of data. However, high-dimensional data, such as images, typically feature multiple interesting characteristics one could cluster over. For example, images of objects against a…

Machine Learning · Statistics 2021-11-02 Fabian Falck , Haoting Zhang , Matthew Willetts , George Nicholson , Christopher Yau , Chris Holmes

The dynamical variational autoencoders (DVAEs) are a family of latent-variable deep generative models that extends the VAE to model a sequence of observed data and a corresponding sequence of latent vectors. In almost all the DVAEs of the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-11 Xiaoyu Lin , Xiaoyu Bie , Simon Leglaive , Laurent Girin , Xavier Alameda-Pineda

The variational autoencoder (VAE) is a popular deep latent variable model used to analyse high-dimensional datasets by learning a low-dimensional latent representation of the data. It simultaneously learns a generative model and an…

Machine Learning · Computer Science 2023-11-21 Mine Öğretir , Siddharth Ramchandran , Dimitrios Papatheodorou , Harri Lähdesmäki

Pedestrian trajectory forecasting is a fundamental task in multiple utility areas, such as self-driving, autonomous robots, and surveillance systems. The future trajectory forecasting is multi-modal, influenced by physical interaction with…

Computer Vision and Pattern Recognition · Computer Science 2022-02-09 Jiashi Gao , Xinming Shi , James J. Q. Yu

Vision Transformer (ViT) based autoencoders often underutilize the global Class token and employ static attention mechanisms, limiting both generative control and optimization efficiency. This paper introduces ViTCAE, a framework that…

Machine Learning · Computer Science 2025-09-23 Vahid Jebraeeli , Hamid Krim , Derya Cansever

Audio-visual emotion recognition (AVER) methods typically fuse utterance-level features, and even frame-level attention models seldom address the frame-rate mismatch across modalities. In this paper, we propose a Transformer-based framework…

Multimedia · Computer Science 2026-03-13 Inyong Koo , yeeun Seong , Minseok Son , Jaehyuk Jang , Changick Kim
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