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Variational AutoEncoders (VAEs) provide a means to generate representational latent embeddings. Previous research has highlighted the benefits of achieving representations that are disentangled, particularly for downstream tasks. However,…

计算机视觉与模式识别 · 计算机科学 2019-11-18 Matthew J. Vowels , Necati Cihan Camgoz , Richard Bowden

A variational autoencoder (VAE) is a probabilistic machine learning framework for posterior inference that projects an input set of high-dimensional data to a lower-dimensional, latent space. The latent space learned with a VAE offers…

机器学习 · 计算机科学 2022-11-16 Rafael Pastrana

Recently, deep hashing methods have been widely used in image retrieval task. Most existing deep hashing approaches adopt one-to-one quantization to reduce information loss. However, such class-unrelated quantization cannot give…

计算机视觉与模式识别 · 计算机科学 2021-12-24 Jianglin Lu , Hailing Wang , Jie Zhou , Mengfan Yan , Jiajun Wen

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

Visual bird's eye view (BEV) semantic segmentation helps autonomous vehicles understand the surrounding environment only from images, including static elements (e.g., roads) and dynamic elements (e.g., vehicles, pedestrians). However, the…

计算机视觉与模式识别 · 计算机科学 2024-02-27 Junyu Zhu , Lina Liu , Yu Tang , Feng Wen , Wanlong Li , Yong Liu

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

Encoding domain knowledge into the prior over the high-dimensional weight space of a neural network is challenging but essential in applications with limited data and weak signals. Two types of domain knowledge are commonly available in…

机器学习 · 统计学 2023-03-31 Tianyu Cui , Aki Havulinna , Pekka Marttinen , Samuel Kaski

Unsupervised representation learning holds the promise of exploiting large amounts of unlabeled data to learn general representations. A promising technique for unsupervised learning is the framework of Variational Auto-encoders (VAEs).…

计算机视觉与模式识别 · 计算机科学 2020-04-09 Kamal Gupta , Saurabh Singh , Abhinav Shrivastava

Using class labels to represent class similarity is a typical approach to training deep hashing systems for retrieval; samples from the same or different classes take binary 1 or 0 similarity values. This similarity does not model the full…

信息检索 · 计算机科学 2019-08-16 Heikki Arponen , Tom E Bishop

The Variational Auto-Encoder (VAE) is one of the most used unsupervised machine learning models. But although the default choice of a Gaussian distribution for both the prior and posterior represents a mathematically convenient distribution…

机器学习 · 统计学 2022-09-28 Tim R. Davidson , Luca Falorsi , Nicola De Cao , Thomas Kipf , Jakub M. Tomczak

To minimize the annotation costs associated with the training of semantic segmentation models, researchers have extensively investigated weakly-supervised segmentation approaches. In the current weakly-supervised segmentation methods, the…

计算机视觉与模式识别 · 计算机科学 2019-11-13 Wataru Shimoda , Keiji Yanai

We extend Stochastic Gradient Variational Bayes to perform posterior inference for the weights of Stick-Breaking processes. This development allows us to define a Stick-Breaking Variational Autoencoder (SB-VAE), a Bayesian nonparametric…

机器学习 · 统计学 2017-04-05 Eric Nalisnick , Padhraic Smyth

Achieving precise semantic control over the latent spaces of Variational AutoEncoders (VAEs) holds significant value for downstream tasks in NLP as the underlying generative mechanisms could be better localised, explained and improved upon.…

计算与语言 · 计算机科学 2024-02-02 Yingji Zhang , Danilo S. Carvalho , Marco Valentino , Ian Pratt-Hartmann , Andre Freitas

Hashing learns compact binary codes to store and retrieve massive data efficiently. Particularly, unsupervised deep hashing is supported by powerful deep neural networks and has the desirable advantage of label independence. It is a…

多媒体 · 计算机科学 2021-08-10 Hui Cui , Lei Zhu , Jingjing Li , Zhiyong Cheng , Zheng Zhang

We present a coupled Variational Auto-Encoder (VAE) method that improves the accuracy and robustness of the probabilistic inferences on represented data. The new method models the dependency between input feature vectors (images) and weighs…

机器学习 · 计算机科学 2025-11-25 Shichen Cao , Jingjing Li , Kenric P. Nelson , Mark A. Kon

Large-scale cross-modal hashing similarity retrieval has attracted more and more attention in modern search applications such as search engines and autopilot, showing great superiority in computation and storage. However, current…

计算机视觉与模式识别 · 计算机科学 2020-01-01 Lu Wang , Jie Yang

Recent studies show that auto-encoder based approaches successfully perform language generation, smooth sentence interpolation, and style transfer over unseen attributes using unlabelled datasets in a zero-shot manner. The latent space…

计算与语言 · 计算机科学 2022-05-06 Sharan Narasimhan , Suvodip Dey , Maunendra Sankar Desarkar

Sparse deep learning aims to address the challenge of huge storage consumption by deep neural networks, and to recover the sparse structure of target functions. Although tremendous empirical successes have been achieved, most sparse deep…

机器学习 · 统计学 2020-11-17 Jincheng Bai , Qifan Song , Guang Cheng

We propose a new family of optimization criteria for variational auto-encoding models, generalizing the standard evidence lower bound. We provide conditions under which they recover the data distribution and learn latent features, and…

机器学习 · 计算机科学 2017-03-01 Shengjia Zhao , Jiaming Song , Stefano Ermon

This paper addresses the problem of learning binary hash codes for large scale image search by proposing a novel hashing method based on deep neural network. The advantage of our deep model over previous deep model used in hashing is that…

计算机视觉与模式识别 · 计算机科学 2015-08-31 Thanh-Toan Do , Anh-Zung Doan , Ngai-Man Cheung