Results 91 to 100 of about 5,065 (216)

Evaluating Reconstruction-Based and Proximity-Based Methods: A Four-Way Comparison (AE, LSTM-AE, OCSVM, IF) in SCADA Anomaly Detection Under Inverted Imbalance

open access: yesFuture Internet
This article investigates and compares four unsupervised anomaly detection algorithms: the Autoencoder (AE), LSTM-Autoencoder (LSTM-AE), One-Class SVM (OCSVM), and the Isolation Forest (IF). The analysis focuses on SCADA telemetry data from an urban wind
Lukasz Pawlik
doaj   +1 more source

Design of experimental study for the AE-DNNs.

open access: yes, 2019
Steps 1-7 (green line) represent model training, and steps 8-13 (blue line) show model evaluation. KNHANES, Korea national health and nutrition examination survey; AE, autoencoder; RE, reconstruction error; DNN, deep neural network; CHD, coronary heart ...
Jong Yun Lee (8087834)   +3 more
core   +1 more source

Spatially-aware unsupervised anomaly detection for soil stress monitoring using graph autoencoders in precision agriculture

open access: yesFrontiers in Sustainable Food Systems
IntroductionEarly detection of crop stress in precision agriculture is hindered by complex multivariate sensor interactions, spatial variability across fields, and the scarcity of labeled anomaly data.
S. V. Sharvani   +5 more
doaj   +1 more source

Advanced Flame front Detection in Combustion Processes Using Autoencoder Approach

open access: yes
This research explores the detection of flame front evolution in spark-ignition engines using an innovative neural network, the autoencoder. High-speed camera images from an optical access engine were analyzed under different air excess coefficient ...
Federico Ricci, Francesco Mariani
core   +1 more source

An Autoencoder Gated Recurrent Unit for Remaining Useful Life Prediction

open access: yes, 2020
With the development of smart manufacturing, in order to detect abnormal conditions of the equipment, a large number of sensors have been used to record the variables associated with production equipment. This study focuses on the prediction of Remaining
Yi-Wei Lu   +2 more
core   +1 more source

Ae$$^2$$I: A Double Autoencoder for Imputation of Missing Values

open access: yes
The most common strategy of imputing missing values in a table is to study either the column-column relationship or the row-row relationship of the data table, then use the relationship to impute the missing values based on the non-missing values from other columns of the same row, or from the other rows of the same column.
openaire   +2 more sources

RaViT-AE: Unsupervised Anomaly Detection for Intelligent Cultural Heritage Monitoring Using Region-Attentive ViT Autoencoder

open access: yes
Unsupervised anomaly detection is well known for its ability to effectively identify and discern anomalies in data containing rare anomalies or diverse patterns, leading to broad applications across various research fields.
Dohyung Kwon, Jeongmin Yu
core   +1 more source

Exploring Autoencoder-based Error-bounded Compression for Scientific Data

open access: yes, 2023
Error-bounded lossy compression is becoming an indispensable technique for the success of today's scientific projects with vast volumes of data produced during simulations or instrument data acquisitions.
Liu, Jinyang   +7 more
core  

Improving Recognition of Defective Epoxy Images in Integrated Circuit Manufacturing by Data Augmentation

open access: yesSensors
This paper discusses the problem of recognizing defective epoxy drop images for the purpose of performing vision-based die attachment inspection in integrated circuit (IC) manufacturing based on deep neural networks.
Lamia Alam, Nasser Kehtarnavaz
doaj   +1 more source

Variational Autoencoder to Obtain High Resolution Wind Fields from Reanalysis Data

open access: yesWind
Accurate wind flow prediction is essential for various applications, including the placement of wind turbines and a multitude of environmental assessments.
Bernhard Rösch   +5 more
doaj   +1 more source

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