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We aim to separate the generative factors of data into two latent vectors in a variational autoencoder. One vector captures class factors relevant to target classification tasks, while the other vector captures style factors relevant to the…

机器学习 · 计算机科学 2020-03-17 Bo-Kyeong Kim , Sungjin Park , Geonmin Kim , Soo-Young Lee

Convolutional networks have marked their place over the last few years as the best performing model for various visual tasks. They are, however, most suited for supervised learning from large amounts of labeled data. Previous attempts have…

机器学习 · 统计学 2016-11-23 Elad Hoffer , Itay Hubara , Nir Ailon

Self-supervision is one of the hallmarks of representation learning in the increasingly popular suite of foundation models including large language models such as BERT and GPT-3, but it has not been pursued in the context of multivariate…

机器学习 · 计算机科学 2024-02-05 Xiao Shou , Dharmashankar Subramanian , Debarun Bhattacharjya , Tian Gao , Kristin P. Bennet

Disentangled Representation Learning aims to improve the explainability of deep learning methods by training a data encoder that identifies semantically meaningful latent variables in the data generation process. Nevertheless, there is no…

机器学习 · 计算机科学 2024-10-08 Ruoyu Wang , Lina Yao

Recent advances in supervised deep learning methods are enabling remote measurements of photoplethysmography-based physiological signals using facial videos. The performance of these supervised methods, however, are dependent on the…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Hao Wang , Euijoon Ahn , Jinman Kim

There is a vast literature on representation learning based on principles such as coding efficiency, statistical independence, causality, controllability, or symmetry. In this paper we propose to learn representations from sequence data by…

机器学习 · 计算机科学 2026-03-11 Yue Song , Thomas Anderson Keller , Yisong Yue , Pietro Perona , Max Welling

We contribute an unsupervised method that effectively learns disentangled content and style representations from sequences of observations. Unlike most disentanglement algorithms that rely on domain-specific labels or knowledge, our method…

机器学习 · 计算机科学 2025-03-18 Yuxuan Wu , Ziyu Wang , Bhiksha Raj , Gus Xia

In unsupervised learning, dimensionality reduction is an important tool for data exploration and visualization. Because these aims are typically open-ended, it can be useful to frame the problem as looking for patterns that are enriched in…

机器学习 · 统计学 2018-11-16 Kristen Severson , Soumya Ghosh , Kenney Ng

Learning a discriminative semantic space using unlabelled and noisy data remains unaddressed in a multi-label setting. We present a contrastive self-supervised learning method which is robust to data noise, grounded in the domain of…

计算机视觉与模式识别 · 计算机科学 2024-05-09 Mehmet Can Yavuz , Berrin Yanikoglu

Disentangled and invariant representations are two critical goals of representation learning and many approaches have been proposed to achieve either one of them. However, those two goals are actually complementary to each other so that we…

机器学习 · 计算机科学 2022-09-16 Jiageng Zhu , Hanchen Xie , Wael Abd-Almageed

Our work focuses on unsupervised and generative methods that address the following goals: (a) learning unsupervised generative representations that discover latent factors controlling image semantic attributes, (b) studying how this ability…

计算机视觉与模式识别 · 计算机科学 2021-06-08 William Paul , I-Jeng Wang , Fady Alajaji , Philippe Burlina

We investigate a strategy for improving the efficiency of contrastive learning of visual representations by leveraging a small amount of supervised information during pre-training. We propose a semi-supervised loss, SuNCEt, based on…

机器学习 · 计算机科学 2020-12-03 Mahmoud Assran , Nicolas Ballas , Lluis Castrejon , Michael Rabbat

Learning interpretable and disentangled representations is a crucial yet challenging task in representation learning. In this work, we focus on semi-supervised disentanglement learning and extend work by Locatello et al. (2019) by…

机器学习 · 计算机科学 2020-06-24 Weili Nie , Zichao Wang , Ankit B. Patel , Richard G. Baraniuk

Contrastive learning methods have attracted considerable attention due to their remarkable success in analyzing graph-structured data. Inspired by the success of contrastive learning, we propose a novel framework for contrastive…

机器学习 · 计算机科学 2023-06-21 Xiaojuan Zhang , Jun Fu , Shuang Li

(Very early draft)Traditional supervised learning keeps pushing convolution neural network(CNN) achieving state-of-art performance. However, lack of large-scale annotation data is always a big problem due to the high cost of it, even…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Zhibo Wang , Shen Yan , Xiaoyu Zhang , Niels Lobo

We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

For speaker recognition, it is difficult to extract an accurate speaker representation from speech because of its mixture of speaker traits and content. This paper proposes a disentanglement framework that simultaneously models speaker…

音频与语音处理 · 电气工程与系统科学 2023-11-02 Tianchi Liu , Kong Aik Lee , Qiongqiong Wang , Haizhou Li

Learning disentangled representations is considered a cornerstone problem in representation learning. Recently, Locatello et al. (2019) demonstrated that unsupervised disentanglement learning without inductive biases is theoretically…

In unsupervised causal representation learning for sequential data with time-delayed latent causal influences, strong identifiability results for the disentanglement of causally-related latent variables have been established in stationary…

机器学习 · 计算机科学 2024-08-02 Xiangchen Song , Weiran Yao , Yewen Fan , Xinshuai Dong , Guangyi Chen , Juan Carlos Niebles , Eric Xing , Kun Zhang

Unsupervised sentence representation learning is one of the fundamental problems in natural language processing with various downstream applications. Recently, contrastive learning has been widely adopted which derives high-quality sentence…

计算与语言 · 计算机科学 2023-05-29 Jiduan Liu , Jiahao Liu , Qifan Wang , Jingang Wang , Wei Wu , Yunsen Xian , Dongyan Zhao , Kai Chen , Rui Yan