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The variational autoencoder (VAE) is a popular probabilistic generative model. However, one shortcoming of VAEs is that the latent variables cannot be discrete, which makes it difficult to generate data from different modes of a…

Machine Learning · Statistics 2017-11-21 Jay A. Hennig , Akash Umakantha , Ryan C. Williamson

Hierarchical Variational Autoencoders (VAEs) are among the most popular likelihood-based generative models. There is a consensus that the top-down hierarchical VAEs allow effective learning of deep latent structures and avoid problems like…

Machine Learning · Computer Science 2023-09-29 Anna Kuzina , Jakub M. Tomczak

In few-shot learning, a machine learning system learns from a small set of labelled examples relating to a specific task, such that it can generalize to new examples of the same task. Given the limited availability of labelled examples in…

Machine Learning · Computer Science 2020-01-31 Antreas Antoniou , Amos Storkey

Deep generative models are commonly used for generating images and text. Interpretability of these models is one important pursuit, other than the generation quality. Variational auto-encoder (VAE) with Gaussian distribution as prior has…

Machine Learning · Computer Science 2020-08-24 Wenxian Shi , Hao Zhou , Ning Miao , Lei Li

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

Variational Autoencoders (VAEs) are well-established as a principled approach to probabilistic unsupervised learning with neural networks. Typically, an encoder network defines the parameters of a Gaussian distributed latent space from…

Machine Learning · Computer Science 2025-05-16 Alan Jeffares , Liyuan Liu

Few-shot recognition aims to recognize novel categories under low-data regimes. Some recent few-shot recognition methods introduce auxiliary semantic modality, i.e., category attribute information, into representation learning, which…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Haoxing Chen , Huaxiong Li , Yaohui Li , Chunlin Chen

Accurately quantifying uncertainty in predictions and projections arising from irreducible internal climate variability is critical for informed decision making. Such uncertainty is typically assessed using ensembles produced with physics…

Machine Learning · Computer Science 2026-02-09 Parsa Gooya , Reinel Sospedra-Alfonso , Johannes Exenberger

The vector quantization is a widely used method to map continuous representation to discrete space and has important application in tokenization for generative mode, bottlenecking information and many other tasks in machine learning. Vector…

Machine Learning · Computer Science 2024-10-15 Mingyuan Yan , Jiawei Wu , Rushi Shah , Dianbo Liu

A deep generative model that describes human motions can benefit a wide range of fundamental computer vision and graphics tasks, such as providing robustness to video-based human pose estimation, predicting complete body movements for…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Jiaman Li , Ruben Villegas , Duygu Ceylan , Jimei Yang , Zhengfei Kuang , Hao Li , Yajie Zhao

Learning from heterogeneous data poses challenges such as combining data from various sources and of different types. Meanwhile, heterogeneous data are often associated with missingness in real-world applications due to heterogeneity and…

Machine Learning · Computer Science 2021-02-26 Yu Gong , Hossein Hajimirsadeghi , Jiawei He , Thibaut Durand , Greg Mori

Learning from a few examples is a challenging task for machine learning. While recent progress has been made for this problem, most of the existing methods ignore the compositionality in visual concept representation (e.g. objects are built…

Computer Vision and Pattern Recognition · Computer Science 2019-06-13 Ping Hu , Ximeng Sun , Kate Saenko , Stan Sclaroff

Few-shot Learning aims to learn and distinguish new categories with a very limited number of available images, presenting a significant challenge in the realm of deep learning. Recent researchers have sought to leverage the additional…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Chunpeng Zhou , Haishuai Wang , Xilu Yuan , Zhi Yu , Jiajun Bu

Classical methods for model order selection often fail in scenarios with low SNR or few snapshots. Deep learning-based methods are promising alternatives for such challenging situations as they compensate lack of information in the…

Signal Processing · Electrical Eng. & Systems 2023-12-07 Michael Baur , Franz Weißer , Benedikt Böck , Wolfgang Utschick

We present a syntax-infused variational autoencoder (SIVAE), that integrates sentences with their syntactic trees to improve the grammar of generated sentences. Distinct from existing VAE-based text generative models, SIVAE contains two…

Machine Learning · Statistics 2019-06-11 Xinyuan Zhang , Yi Yang , Siyang Yuan , Dinghan Shen , Lawrence Carin

Learning disentangled representations of real-world data is a challenging open problem. Most previous methods have focused on either supervised approaches which use attribute labels or unsupervised approaches that manipulate the…

Computation and Language · Computer Science 2021-01-26 Vikash Balasubramanian , Ivan Kobyzev , Hareesh Bahuleyan , Ilya Shapiro , Olga Vechtomova

Although significant progress has been made in few-shot learning, most of existing few-shot image classification methods require supervised pre-training on a large amount of samples of base classes, which limits their generalization ability…

Computer Vision and Pattern Recognition · Computer Science 2023-01-23 Fang Peng , Xiaoshan Yang , Linhui Xiao , Yaowei Wang , Changsheng Xu

Few-shot detection is a major task in pattern recognition which seeks to localize objects using models trained with few labeled data. One of the mainstream few-shot methods is transfer learning which consists in pretraining a detection…

Computer Vision and Pattern Recognition · Computer Science 2024-02-15 Jie Mei , Mingyuan Jiu , Hichem Sahbi , Xiaoheng Jiang , Mingliang Xu

Realistic and diverse 3D shape generation is helpful for a wide variety of applications such as virtual reality, gaming, and animation. Modern generative models, such as GANs and diffusion models, learn from large-scale datasets and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-22 Jingyuan Zhu , Huimin Ma , Jiansheng Chen , Jian Yuan

We present a generative framework for zero-shot action recognition where some of the possible action classes do not occur in the training data. Our approach is based on modeling each action class using a probability distribution whose…

Computer Vision and Pattern Recognition · Computer Science 2018-01-30 Ashish Mishra , Vinay Kumar Verma , M Shiva Krishna Reddy , Arulkumar S , Piyush Rai , Anurag Mittal