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In industry, machine anomalous sound detection (ASD) is in great demand. However, collecting enough abnormal samples is difficult due to the high cost, which boosts the rapid development of unsupervised ASD algorithms. Autoencoder (AE)…

声音 · 计算机科学 2023-11-16 Yifan Zhou , Dongxing Xu , Haoran Wei , Yanhua Long

Generative autoencoders offer a promising approach for controllable text generation by leveraging their latent sentence representations. However, current models struggle to maintain coherent latent spaces required to perform meaningful text…

机器学习 · 计算机科学 2020-07-08 Tianxiao Shen , Jonas Mueller , Regina Barzilay , Tommi Jaakkola

Neuroevolution has proven effective at many reinforcement learning tasks, but does not seem to scale well to high-dimensional controller representations, which are needed for tasks where the input is raw pixel data. We propose a novel…

人工智能 · 计算机科学 2017-07-14 Samuel Alvernaz , Julian Togelius

Autoencoders have achieved great success in various computer vision applications. The autoencoder learns appropriate low dimensional image representations through the self-supervised paradigm, i.e., reconstruction. Existing studies mainly…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Jianzhang Zheng , Hao Shen , Jian Yang , Xuan Tang , Mingsong Chen , Hui Yu , Jielong Guo , Xian Wei

Discriminative learning based on convolutional neural networks (CNNs) aims to perform image restoration by learning from training examples of noisy-clean image pairs. It has become the go-to methodology for tackling image restoration and…

计算机视觉与模式识别 · 计算机科学 2020-09-01 Junaid Malik , Serkan Kiranyaz , Moncef Gabbouj

Evolutionary computation methods have been successfully applied to neural networks since two decades ago, while those methods cannot scale well to the modern deep neural networks due to the complicated architectures and large quantities of…

神经与进化计算 · 计算机科学 2019-03-12 Yanan Sun , Bing Xue , Mengjie Zhang , Gary G. Yen

In this paper, we present an in-depth investigation of the convolutional autoencoder (CAE) bottleneck. Autoencoders (AE), and especially their convolutional variants, play a vital role in the current deep learning toolbox. Researchers and…

机器学习 · 计算机科学 2020-05-14 Ilja Manakov , Markus Rohm , Volker Tresp

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

It is a widely accepted fact that data representations intervene noticeably in machine learning tools. The more they are well defined the better the performance results are. Feature extraction-based methods such as autoencoders are…

神经与进化计算 · 计算机科学 2018-06-12 Naima Chouikhi , Boudour Ammar , Adel M. Alimi

Variational Autoencoders (VAEs) have become a popular approach for dimensionality reduction. However, despite their ability to identify latent low-dimensional structures embedded within high-dimensional data, these latent representations…

机器学习 · 统计学 2020-08-27 Kaspar Märtens , Christopher Yau

Although deep learning are commonly employed for image recognition, usually huge amount of labeled training data is required, which may not always be readily available. This leads to a noticeable performance disparity when compared to…

计算机视觉与模式识别 · 计算机科学 2024-02-08 Enoch Solomon , Abraham Woubie , Eyael Solomon Emiru

In classification problems, supervised machine-learning methods outperform traditional algorithms, thanks to the ability of neural networks to learn complex patterns. However, in two-class classification tasks like anomaly or fraud…

机器学习 · 计算机科学 2022-04-01 Mihai-Cezar Augustin , Vivien Bonvin , Regis Houssou , Efstratios Rappos , Stephan Robert-Nicoud

Many unsupervised visual anomaly detection methods train an auto-encoder to reconstruct normal samples and then leverage the reconstruction error map to detect and localize the anomalies. However, due to the powerful modeling and…

计算机视觉与模式识别 · 计算机科学 2024-12-18 Qingqing Fang , Qinliang Su , Wenxi Lv , Wenchao Xu , Jianxing Yu

Evolutionary algorithms (EAs) have been successfully applied to optimize the policies for Reinforcement Learning (RL) tasks due to their exploration ability. The recently proposed Negatively Correlated Search (NCS) provides a distinct…

神经与进化计算 · 计算机科学 2023-09-26 Hu Zhang , Peng Yang , Yanglong Yu , Mingjia Li , Ke Tang

Pruning well-trained neural networks is effective to achieve a promising accuracy-efficiency trade-off in computer vision regimes. However, most of existing pruning algorithms only focus on the classification task defined on the source…

计算机视觉与模式识别 · 计算机科学 2022-02-24 Ruichen Li , Binghui Li , Qi Qian , Liwei Wang

Neuroevolution automates the complex task of neural network design but often ignores the inherent adversarial fragility of evolved models which is a barrier to adoption in safety-critical scenarios. While robust training methods have…

神经与进化计算 · 计算机科学 2026-03-27 Inês Valentim , Nuno Antunes , Nuno Lourenço

In this paper, we present a novel neuroevolutionary method to identify the architecture and hyperparameters of convolutional autoencoders. Remarkably, we used a hypervolume indicator in the context of neural architecture search for…

神经与进化计算 · 计算机科学 2021-06-23 Daniel Dimanov , Emili Balaguer-Ballester , Colin Singleton , Shahin Rostami

We introduce a Three-Dimensional Convolutional Variational Autoencoder (3D-CVAE) for automated anomaly detection in Electron Energy Loss Spectroscopy Spectrum Imaging (EELS-SI) data. Our approach leverages the full three-dimensional…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Seyfal Sultanov , James P Buban , Robert F Klie

Normalization techniques have become a basic component in modern convolutional neural networks (ConvNets). In particular, many recent works demonstrate that promoting the orthogonality of the weights helps train deep models and improve…

计算机视觉与模式识别 · 计算机科学 2022-01-05 Sheng Liu , Xiao Li , Yuexiang Zhai , Chong You , Zhihui Zhu , Carlos Fernandez-Granda , Qing Qu

We propose a MultiScale AutoEncoder(MSAE) based extreme image compression framework to offer visually pleasing reconstruction at a very low bitrate. Our method leverages the "priors" at different resolution scale to improve the compression…

图像与视频处理 · 电气工程与系统科学 2020-01-06 Chao Huang , Haojie Liu , Tong Chen , Qiu Shen , Zhan Ma