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Sequence-to-sequence (Seq2seq) models have played an important role in the recent success of various natural language processing methods, such as machine translation, text summarization, and speech recognition. However, current Seq2seq…

计算与语言 · 计算机科学 2018-06-05 Myeongjun Jang , Seungwan Seo , Pilsung Kang

We propose a variational autoencoder (VAE) approach for parameter estimation in nonlinear mixed-effects models based on ordinary differential equations (NLME-ODEs) using longitudinal data from multiple subjects. In moderate dimensions,…

统计方法学 · 统计学 2026-02-11 Zhe Li , Mélanie Prague , Rodolphe Thiébaut , Quentin Clairon

Hashing method maps similar high-dimensional data to binary hashcodes with smaller hamming distance, and it has received broad attention due to its low storage cost and fast retrieval speed. Pairwise similarity is easily obtained and widely…

计算机视觉与模式识别 · 计算机科学 2019-02-05 Shifeng Zhang , Jianmin Li , Bo Zhang

Supervised hashing aims to map the original features to compact binary codes that are able to preserve label based similarity in the Hamming space. Non-linear hash functions have demonstrated the advantage over linear ones due to their…

计算机视觉与模式识别 · 计算机科学 2016-11-17 Guosheng Lin , Chunhua Shen , Qinfeng Shi , Anton van den Hengel , David Suter

The key idea of variational auto-encoders (VAEs) resembles that of traditional auto-encoder models in which spatial information is supposed to be explicitly encoded in the latent space. However, the latent variables in VAEs are vectors,…

机器学习 · 计算机科学 2019-01-23 Zhengyang Wang , Hao Yuan , Shuiwang Ji

Learning latent representations that are simultaneously expressive, geometrically well-structured, and reliably calibrated remains a central challenge for Variational Autoencoders (VAEs). Standard VAEs typically assume a diagonal Gaussian…

机器学习 · 计算机科学 2025-12-02 Mehmet Can Yavuz

With the introduction of the variational autoencoder (VAE), probabilistic latent variable models have received renewed attention as powerful generative models. However, their performance in terms of test likelihood and quality of generated…

机器学习 · 统计学 2020-01-13 Lars Maaløe , Marco Fraccaro , Valentin Liévin , Ole Winther

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

Clustering using deep neural network models have been extensively studied in recent years. Among the most popular frameworks are the VAE and GAN frameworks, which learns latent feature representations of data through encoder / decoder…

机器学习 · 计算机科学 2021-05-14 Adam Lindhe , Carl Ringqvist , Henrik Hult

Leveraging the framework of Optimal Transport, we introduce a new family of generative autoencoders with a learnable prior, called Symmetric Wasserstein Autoencoders (SWAEs). We propose to symmetrically match the joint distributions of the…

机器学习 · 计算机科学 2021-06-25 Sun Sun , Hongyu Guo

We propose a flexible procedure for large-scale image search by hash functions with kernels. Our method treats binary codes and pairwise semantic similarity as latent and observed variables, respectively, in a probabilistic model based on…

计算机视觉与模式识别 · 计算机科学 2016-04-26 Bahadir Ozdemir , Larry S. Davis

Variational auto-encoder (VAE) is a powerful unsupervised learning framework for image generation. One drawback of VAE is that it generates blurry images due to its Gaussianity assumption and thus L2 loss. To allow the generation of high…

计算机视觉与模式识别 · 计算机科学 2017-05-23 Lei Cai , Hongyang Gao , Shuiwang Ji

Binary codes have been widely used in vision problems as a compact feature representation to achieve both space and time advantages. Various methods have been proposed to learn data-dependent hash functions which map a feature vector to a…

计算机视觉与模式识别 · 计算机科学 2014-10-22 Jie Feng , Wei Liu , Yan Wang

Deep hashing methods have been proved to be effective and efficient for large-scale Web media search. The success of these data-driven methods largely depends on collecting sufficient labeled data, which is usually a crucial limitation in…

计算机视觉与模式识别 · 计算机科学 2019-11-21 Sheng Jin , Shangchen Zhou , Yao Liu , Chao Chen , Xiaoshuai Sun , Hongxun Yao , Xiansheng Hua

Multimodal variational autoencoders (VAEs) are widely used for weakly supervised generative learning with multiple modalities. Predominant methods aggregate unimodal inference distributions using either a product of experts (PoE), a mixture…

机器学习 · 计算机科学 2026-04-01 Huyen Vo , Isabel Valera

Recently, deep supervised hashing methods have become popular for large-scale image retrieval task. To preserve the semantic similarity notion between examples, they typically utilize the pairwise supervision or the triplet supervised…

计算机视觉与模式识别 · 计算机科学 2019-01-14 Lei Ma , Hongliang Li , Qingbo Wu , Fanman Meng , King Ngi Ngan

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

Our work introduces SAVeD (Semantically Aware Version Detection), a contrastive learning-based framework for identifying versions of structured datasets without relying on metadata, labels, or integration-based assumptions. SAVeD addresses…

机器学习 · 计算机科学 2026-01-13 Artem Frenk , Roee Shraga

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

We view variational autoencoders (VAE) as decoder-encoder pairs, which map distributions in the data space to distributions in the latent space and vice versa. The standard learning approach for VAEs is the maximisation of the evidence…

机器学习 · 计算机科学 2024-03-13 Boris Flach , Dmitrij Schlesinger , Alexander Shekhovtsov