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Anomaly detection is a prominent data preprocessing step in learning applications for correction and/or removal of faulty data. Automating this data type with the use of autoencoders could increase the quality of the dataset by isolating…

机器学习 · 计算机科学 2020-04-10 Benjamin Smith , Kevin Cant , Gloria Wang

As for the humanoid robots, the internal noise, which is generated by motors, fans and mechanical components when the robot is moving or shaking its body, severely degrades the performance of the speech recognition accuracy. In this paper,…

声音 · 计算机科学 2018-08-28 Moa Lee , Joon Hyuk Chang

Driving in a dynamic, multi-agent, and complex urban environment is a difficult task requiring a complex decision-making policy. The learning of such a policy requires a state representation that can encode the entire environment. Mid-level…

机器学习 · 计算机科学 2021-12-23 Eshagh Kargar , Ville Kyrki

In this work, we consider the use of a model-based decoder in combination with an unsupervised learning strategy for direction-of-arrival (DoA) estimation. Relying only on unlabeled training data we show in our analysis that we can…

信号处理 · 电气工程与系统科学 2023-11-29 Franz Weißer , Michael Baur , Wolfgang Utschick

Autoencoders have been proposed as a powerful tool for model-independent anomaly detection in high-energy physics. The operating principle is that events which do not belong to the space of training data will be reconstructed poorly, thus…

高能物理 - 唯象学 · 物理学 2021-05-06 Joshua Batson , C. Grace Haaf , Yonatan Kahn , Daniel A. Roberts

We introduce a potentially powerful new method of searching for new physics at the LHC, using autoencoders and unsupervised deep learning. The key idea of the autoencoder is that it learns to map "normal" events back to themselves, but…

高能物理 - 唯象学 · 物理学 2020-04-22 Marco Farina , Yuichiro Nakai , David Shih

We present a comprehensive study on the use of autoencoders for modelling text data, in which (differently from previous studies) we focus our attention on the following issues: i) we explore the suitability of two different models bDA and…

信息检索 · 计算机科学 2014-02-14 Parth Gupta , Rafael E. Banchs , Paolo Rosso

Modeling and controlling complex spatiotemporal dynamical systems driven by partial differential equations (PDEs) often necessitate dimensionality reduction techniques to construct lower-order models for computational efficiency. This paper…

系统与控制 · 电气工程与系统科学 2024-09-12 Priyabrata Saha , Saibal Mukhopadhyay

In many machine learning tasks, learning a good representation of the data can be the key to building a well-performant solution. This is because most learning algorithms operate with the features in order to find models for the data. For…

机器学习 · 计算机科学 2020-05-22 David Charte , Francisco Charte , María J. del Jesus , Francisco Herrera

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

Reconstruction error-based neural architectures constitute a classical deep learning approach to anomaly detection which has shown great performances. It consists in training an Autoencoder to reconstruct a set of examples deemed to…

机器学习 · 计算机科学 2024-06-06 Fabrizio Angiulli , Fabio Fassetti , Luca Ferragina

Well-calibrated traffic flow models are fundamental to understanding traffic phenomena and designing control strategies. Traditional calibration has been developed base on optimization methods. In this paper, we propose a novel…

机器学习 · 计算机科学 2023-07-13 Yu Tang , Li Jin , Kaan Ozbay

Training a denoising autoencoder neural network requires access to truly clean data, a requirement which is often impractical. To remedy this, we introduce a method to train an autoencoder using only noisy data, having examples with and…

神经与进化计算 · 计算机科学 2015-09-24 Dan Stowell , Richard E. Turner

Autoencoders offer a general way of learning low-dimensional, non-linear representations from data without labels. This is achieved without making any particular assumptions about the data type or other domain knowledge. The generality and…

机器学习 · 计算机科学 2025-05-27 Collin Leiber , Lukas Miklautz , Claudia Plant , Christian Böhm

We present a numerical framework for recovering unknown non-autonomous dynamical systems with time-dependent inputs. To circumvent the difficulty presented by the non-autonomous nature of the system, our method transforms the solution state…

信号处理 · 电气工程与系统科学 2020-06-04 Tong Qin , Zhen Chen , John Jakeman , Dongbin Xiu

Anomaly detection with convolutional autoencoders is a popular method to search for new physics in a model-agnostic manner. These techniques are powerful, but they are still a "black box," since we do not know what high-level physical…

高能物理 - 唯象学 · 物理学 2022-09-13 Layne Bradshaw , Spencer Chang , Bryan Ostdiek

Finding collective variables to describe some important coarse-grained information on physical systems, in particular metastable states, remains a key issue in molecular dynamics. Recently, machine learning techniques have been intensively…

化学物理 · 物理学 2024-03-15 Tony Lelièvre , Thomas Pigeon , Gabriel Stoltz , Wei Zhang

The reliability assessment of a machine learning model's prediction is an important quantity for the deployment in safety critical applications. Not only can it be used to detect novel sceneries, either as out-of-distribution or anomaly…

机器学习 · 计算机科学 2022-05-12 Steve Dias Da Cruz , Bertram Taetz , Thomas Stifter , Didier Stricker

The application of convolutional autoencoder deep learning to imaging data for planetary science and astrobiological use is briefly reviewed and explored with a focus on the need to understand algorithmic rationale, process, and results…

地球与行星天体物理 · 物理学 2025-07-16 Caleb Scharf

A new Lossy Causal Temporal Convolutional Neural Network Autoencoder for anomaly detection is proposed in this work. Our framework uses a rate-distortion loss and an entropy bottleneck to learn a compressed latent representation for the…

机器学习 · 计算机科学 2022-12-06 Christopher P. Ley , Jorge F. Silva