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Autoencoders are a type of unsupervised neural networks, which can be used to solve various tasks, e.g., dimensionality reduction, image compression, and image denoising. An AE has two goals: (i) compress the original input to a…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Firas Laakom , Jenni Raitoharju , Alexandros Iosifidis , Moncef Gabbouj

The autoencoder is an unsupervised learning paradigm that aims to create a compact latent representation of data by minimizing the reconstruction loss. However, it tends to overlook the fact that most data (images) are embedded in a…

We propose a new method for novelty detection that can tolerate high corruption of the training points, whereas previous works assumed either no or very low corruption. Our method trains a robust variational autoencoder (VAE), which aims to…

机器学习 · 计算机科学 2023-03-02 Chieh-Hsin Lai , Dongmian Zou , Gilad Lerman

Design space exploration (DSE) plays a crucial role in enabling custom hardware architectures, particularly for emerging applications like AI, where optimized and specialized designs are essential. With the growing complexity of deep neural…

机器学习 · 计算机科学 2025-01-20 Jamin Seo , Akshat Ramachandran , Yu-Chuan Chuang , Anirudh Itagi , Tushar Krishna

We deal with the problem of learning the underlying disentangled latent factors that are shared between the paired bi-modal data in cross-modal retrieval. Our assumption is that the data in both modalities are complex, structured, and high…

机器学习 · 计算机科学 2020-12-02 Minyoung Kim , Ricardo Guerrero , Vladimir Pavlovic

In principle, applying variational autoencoders (VAEs) to sequential data offers a method for controlled sequence generation, manipulation, and structured representation learning. However, training sequence VAEs is challenging:…

We combine conditional variational autoencoders (VAE) with adversarial censoring in order to learn invariant representations that are disentangled from nuisance/sensitive variations. In this method, an adversarial network attempts to…

机器学习 · 计算机科学 2018-05-22 Ye Wang , Toshiaki Koike-Akino , Deniz Erdogmus

In our previous work, we proposed a discriminative autoencoder (DcAE) for speech recognition. DcAE combines two training schemes into one. First, since DcAE aims to learn encoder-decoder mappings, the squared error between the reconstructed…

声音 · 计算机科学 2022-06-16 Hung-Shin Lee , Pin-Tuan Huang , Yao-Fei Cheng , Hsin-Min Wang

Understanding the latent spaces learned by deep learning models is crucial in exploring how they represent and generate complex data. Autoencoders (AEs) have played a key role in the area of representation learning, with numerous…

机器学习 · 计算机科学 2025-01-17 Anika Shrivastava , Renu Rameshan , Samar Agnihotri

This paper challenges the common assumption that the weight $\beta$, in $\beta$-VAE, should be larger than $1$ in order to effectively disentangle latent factors. We demonstrate that $\beta$-VAE, with $\beta < 1$, can not only attain good…

机器学习 · 计算机科学 2020-10-02 Huajie Shao , Haohong Lin , Qinmin Yang , Shuochao Yao , Han Zhao , Tarek Abdelzaher

Representation learning (RL) methods for cyberattack detection face the diversity and sophistication of attack data, leading to the issue of mixed representations of different classes, particularly as the number of classes increases. To…

密码学与安全 · 计算机科学 2025-04-30 Phai Vu Dinh , Quang Uy Nguyen , Thai Hoang Dinh , Diep N. Nguyen , Bao Son Pham , Eryk Dutkiewicz

Diffusion autoencoders (DAEs) are typically formulated as a noise prediction model and trained with a linear-$\beta$ noise schedule that spends much of its sampling steps at high noise levels. Because high noise levels are associated with…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Pramook Khungurn , Sukit Seripanitkarn , Phonphrm Thawatdamrongkit , Supasorn Suwajanakorn

Imitation learning is an intuitive approach for teaching motion to robotic systems. Although previous studies have proposed various methods to model demonstrated movement primitives, one of the limitations of existing methods is that the…

机器人学 · 计算机科学 2020-09-24 Takayuki Osa , Shuhei Ikemoto

The joint optimization of the reconstruction and classification error is a hard non convex problem, especially when a non linear mapping is utilized. In order to overcome this obstacle, a novel optimization strategy is proposed, in which a…

With the development of generative-based self-supervised learning (SSL) approaches like BeiT and MAE, how to learn good representations by masking random patches of the input image and reconstructing the missing information has grown in…

计算机视觉与模式识别 · 计算机科学 2022-08-02 Yabo Chen , Yuchen Liu , Dongsheng Jiang , Xiaopeng Zhang , Wenrui Dai , Hongkai Xiong , Qi Tian

In this paper we propose Structuring AutoEncoders (SAE). SAEs are neural networks which learn a low dimensional representation of data which are additionally enriched with a desired structure in this low dimensional space. While traditional…

机器学习 · 计算机科学 2019-08-20 Marco Rudolph , Bastian Wandt , Bodo Rosenhahn

To achieve high-levels of autonomy, modern robots require the ability to detect and recover from anomalies and failures with minimal human supervision. Multi-modal sensor signals could provide more information for such anomaly detection…

机器人学 · 计算机科学 2020-12-17 Tianchen Ji , Sri Theja Vuppala , Girish Chowdhary , Katherine Driggs-Campbell

Recent work has shown deep neural networks (DNNs) to be highly susceptible to well-designed, small perturbations at the input layer, or so-called adversarial examples. Taking images as an example, such distortions are often imperceptible,…

机器学习 · 计算机科学 2015-04-13 Shixiang Gu , Luca Rigazio

Multi-modal generative models represent an important family of deep models, whose goal is to facilitate representation learning on data with multiple views or modalities. However, current deep multi-modal models focus on the inference of…

计算机视觉与模式识别 · 计算机科学 2020-12-25 Mihee Lee , Vladimir Pavlovic

Recent advances in representation learning have successfully leveraged the underlying domain-specific structure of data across various fields. However, representing diverse and complex entities stored in tabular format within a latent space…

机器学习 · 计算机科学 2025-02-05 Jan Henrik Bertrand , David B. Hoffmann , Jacopo Pio Gargano , Laurent Mombaerts , Jonathan Taws