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Human face exhibits an inherent hierarchy in its representations (i.e., holistic facial expressions can be encoded via a set of facial action units (AUs) and their intensity). Variational (deep) auto-encoders (VAE) have shown great results…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Dieu Linh Tran , Robert Walecki , Ognjen Rudovic , Stefanos Eleftheriadis , Bjørn Schuller , Maja Pantic

Recently introduced EASE algorithm presents a simple and elegant way, how to solve the top-N recommendation task. In this paper, we introduce Neural EASE to further improve the performance of this algorithm by incorporating techniques for…

机器学习 · 计算机科学 2021-02-12 Vojtěch Vančura , Pavel Kordík

Accelerating deep neural networks (DNNs) has been attracting increasing attention as it can benefit a wide range of applications, e.g., enabling mobile systems with limited computing resources to own powerful visual recognition ability. A…

计算机视觉与模式识别 · 计算机科学 2017-12-21 Tianshui Chen , Liang Lin , Wangmeng Zuo , Xiaonan Luo , Lei Zhang

We propose a novel filter for sparse big data, called an integrated autoencoder (IAE), which utilizes auxiliary information to mitigate data sparsity. The proposed model achieves an appropriate balance between prediction accuracy,…

机器学习 · 计算机科学 2019-06-17 Baogui Xin , Wei Peng

In this paper we introduce a recurrent neural network (RNN) based variational autoencoder (VAE) model with a new constrained loss function that can generate more meaningful electroencephalography (EEG) features from raw EEG features to…

音频与语音处理 · 电气工程与系统科学 2020-06-05 Gautam Krishna , Co Tran , Mason Carnahan , Ahmed Tewfik

Imbalanced data classification problem has always been a popular topic in the field of machine learning research. In order to balance the samples between majority and minority class. Oversampling algorithm is used to synthesize new minority…

机器学习 · 计算机科学 2019-09-02 Junyi Zou , Jinliang Zhang , Ping Jiang

We demonstrate a new deep learning autoencoder network, trained by a nonnegativity constraint algorithm (NCAE), that learns features which show part-based representation of data. The learning algorithm is based on constraining negative…

机器学习 · 计算机科学 2016-01-13 Ehsan Hosseini-Asl , Jacek M. Zurada , Olfa Nasraoui

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

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

Recent state-of-the-art autoencoder based generative models have an encoder-decoder structure and learn a latent representation with a pre-defined distribution that can be sampled from. Implementing the encoder networks of these models in a…

机器学习 · 计算机科学 2020-05-11 D. T. Braithwaite , M. O'Connor , W. B. Kleijn

Generative Adversarial Networks (GANs) have been used in many different applications to generate realistic synthetic data. We introduce a novel GAN with Autoencoder (GAN-AE) architecture to generate synthetic samples for variable length,…

机器学习 · 计算机科学 2022-10-10 Stephanie Ger , Yegna Subramanian Jambunath , Diego Klabjan

This paper presents a simulator-assisted training method (SimVAE) for variational autoencoders (VAE) that leads to a disentangled and interpretable latent space. Training SimVAE is a two-step process in which first a deep generator…

机器学习 · 统计学 2019-11-20 Akash Srivastava , Jessie Rosenberg , Dan Gutfreund , David D. Cox

Autoencoders (AE) have recently been widely employed to approach the novelty detection problem. Trained only on the normal data, the AE is expected to reconstruct the normal data effectively while fail to regenerate the anomalous data,…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Mohammadreza Salehi , Atrin Arya , Barbod Pajoum , Mohammad Otoofi , Amirreza Shaeiri , Mohammad Hossein Rohban , Hamid R. Rabiee

Stacked denoising auto encoders (DAEs) are well known to learn useful deep representations, which can be used to improve supervised training by initializing a deep network. We investigate a training scheme of a deep DAE, where DAE layers…

机器学习 · 计算机科学 2015-04-14 Alexander Kalmanovich , Gal Chechik

Deep autoencoder has been extensively used for anomaly detection. Training on the normal data, the autoencoder is expected to produce higher reconstruction error for the abnormal inputs than the normal ones, which is adopted as a criterion…

计算机视觉与模式识别 · 计算机科学 2019-08-07 Dong Gong , Lingqiao Liu , Vuong Le , Budhaditya Saha , Moussa Reda Mansour , Svetha Venkatesh , Anton van den Hengel

Paradoxically, a Variational Autoencoder (VAE) could be pushed in two opposite directions, utilizing powerful decoder model for generating realistic images but collapsing the learned representation, or increasing regularization coefficient…

机器学习 · 计算机科学 2022-03-30 Trung Ngo , Najwa Laabid , Ville Hautamäki , Merja Heinäniemi

Deep learning has achieved remarkable success in graph-related tasks, yet this accomplishment heavily relies on large-scale high-quality annotated datasets. However, acquiring such datasets can be cost-prohibitive, leading to the practical…

机器学习 · 计算机科学 2024-03-11 Ling-Hao Chen , Yuanshuo Zhang , Taohua Huang , Liangcai Su , Zeyi Lin , Xi Xiao , Xiaobo Xia , Tongliang Liu

As an extension of variational autoencoder (VAE), complex VAE uses complex Gaussian distributions to model latent variables and data. This work proposes a complex recurrent VAE framework, specifically in which complex-valued recurrent…

音频与语音处理 · 电气工程与系统科学 2024-10-28 Yuying Xie , Thomas Arildsen , Zheng-Hua Tan

Dense retrievers encode queries and documents and map them in an embedding space using pre-trained language models. These embeddings need to be high-dimensional to fit training signals and guarantee the retrieval effectiveness of dense…

信息检索 · 计算机科学 2022-10-25 Zhenghao Liu , Han Zhang , Chenyan Xiong , Zhiyuan Liu , Yu Gu , Xiaohua Li

Variational Auto-Encoders (VAEs) are capable of learning latent representations for high dimensional data. However, due to the i.i.d. assumption, VAEs only optimize the singleton variational distributions and fail to account for the…

机器学习 · 计算机科学 2020-04-20 Da Tang , Dawen Liang , Tony Jebara , Nicholas Ruozzi