Results 1 to 10 of about 116,853 (116)

Enhancing clinically cardiovascular machine learning model for risk prediction via sample augmentation [PDF]

open access: yesFrontiers in Medicine
BackgroundSmall sample dataset and heterogeneous distributions limit the robustness and implementability of machine learning models for structured clinical data.
Xiaoyu Tang   +7 more
doaj   +2 more sources

Increasing prediction accuracy of pathogenic staging by sample augmentation with a GAN. [PDF]

open access: yesPLoS ONE, 2021
Accurate prediction of cancer stage is important in that it enables more appropriate treatment for patients with cancer. Many measures or methods have been proposed for more accurate prediction of cancer stage, but recently, machine learning, especially ...
ChangHyuk Kwon   +3 more
doaj   +2 more sources

Hyperspectral estimation of leaf chlorophyll under small-sample conditions via spectral augmentation and weighted ensemble learning [PDF]

open access: yesFrontiers in Plant Science
IntroductionUnder small-sample conditions, hyperspectral leaf chlorophyll estimation is affected by high-dimensional collinearity, measurement noise, and cross-source acquisition discrepancies. Existing studies often treat training-distribution expansion
Jiahui Xu   +24 more
doaj   +2 more sources

Unsupervised Domain Adaptation Algorithm for Time Series Based on Adaptive Contrastive Learning [PDF]

open access: yesEntropy
Time series data find extensive applications in finance, healthcare, and industrial monitoring domains. However, analytical models targeting such data are subject to notable constraints imposed by the rigid independent and identically distributed (IID ...
Huayong Liu, Peng Lin
doaj   +2 more sources

Online-Dynamic-Clustering-Based Soft Sensor for Industrial Semi-Supervised Data Streams

open access: yesSensors, 2023
In the era of big data, industrial process data are often generated rapidly in the form of streams. Thus, how to process such sequential and high-speed stream data in real time and provide critical quality variable predictions has become a critical issue
Yuechen Wang   +5 more
doaj   +1 more source

Semi-supervised Learning Method Based on Automated Mixed Sample Data Augmentation Techniques [PDF]

open access: yesJisuanji kexue, 2022
Consistency-based semi-supervised learning methods typically use simple data augmentation methods to achieve consistent predictions for both original inputs and perturbed inputs.The effectiveness of this approach is difficult to be guaranteed when the ...
XU Hua-jie, CHEN Yu, YANG Yang, QIN Yuan-zhuo
doaj   +1 more source

SSS Underwater Target Image Samples Augmentation Based on the Cross-Domain Mapping Relationship of Images of the Same Physical Object

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Side-scan sonar (SSS) image sample augmentation plays an important role in improving the effect of deep-learning-based underwater target detection.
Yulin Tang   +6 more
doaj   +1 more source

Self-supervised Action Recognition Based on Skeleton Data Augmentation and Double Nearest Neighbor Retrieval [PDF]

open access: yesJisuanji kexue, 2023
Traditional self-supervised methods based on skeleton data often take different data augmentation of a sample as positive examples,and the rest of the samples are regarded as negative examples,which makes the ratio of positive and negative samples ...
WU Yushan, XU Zengmin, ZHANG Xuelian, WANG Tao
doaj   +1 more source

A Side-Scan Sonar Image Synthesis Method Based on a Diffusion Model

open access: yesJournal of Marine Science and Engineering, 2023
The limited number and under-representation of side-scan sonar samples hinders the training of high-performance underwater object detection models. To address this issue, in this paper, we propose a diffusion model-based method to augment side-scan sonar
Zhiwei Yang   +4 more
doaj   +1 more source

Mapping rapeseed in China during 2017-2021 using Sentinel data: an automated approach integrating rule-based sample generation and a one-class classifier (RSG-OC)

open access: yesGIScience & Remote Sensing, 2023
Rapeseed mapping is important for national food security and government regulation of land use. Various methods, including empirical index-based and machine learning-based methods, have been developed to identify rapeseed using remote sensing.
Yunze Zang   +8 more
doaj   +1 more source

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