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Updated: Jun 6, 2025

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
10:46

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data

Published on: December 9, 2015

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使用有限的运行到故障数据预测剩余的使用寿命:贝叶斯整体方法结合了模式依赖的RVM和相似性

Zhuyi Li1, Hao Zheng1, Xianbo Xiang2

  • 1School of Artificial Intelligence and Automation, Key Laboratory of Image Processing and Intelligent Control, Engineering Research Center of Autonomous Intelligent Unmanned Systems, Ministry of Education of China, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China.

ISA transactions
|November 21, 2024
PubMed
概括

本研究引入了贝叶斯集合方法,用于使用有限的运行到故障数据预测剩余使用寿命 (RUL). 该方法提高了RUL预测的准确性,并量化了不确定性,优于现有的方法.

关键词:
贝叶斯式合奏贝叶斯式合奏模式依赖的预测相关性向量机器 相关性向量机器剩余的使用寿命预测.轨迹的相似性 轨迹的相似性

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相关概念视频

Prediction Intervals01:03

Prediction Intervals

The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y. 
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Parametric Survival Analysis: Weibull and Exponential Methods

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Life Tables01:22

Life Tables

A life table is a statistical tool that summarizes the mortality and survival patterns of a population, providing detailed insights into the likelihood of survival or death across different age intervals within a cohort. By organizing data on survival probabilities and mortality rates, life tables offer a clear snapshot of population dynamics over time. They are extensively used in demography, public health, actuarial science, and ecology to analyze life expectancy, design health interventions,...
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Applications of Life Tables01:22

Applications of Life Tables

Life tables are versatile across various fields, providing a quantitative basis for analyzing mortality and survival rates. Whether used by demographers, actuaries, epidemiologists, or sociologists, life tables offer valuable insights into the dynamics of life and death, facilitating informed decisions in public health, insurance, conservation, and beyond. Their broad applicability highlights the interconnectedness of demographic data with practical outcomes in everyday life and strategic...
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Suppose one wants to test independence between the two variables of a contingency table. The values in the table constitute the observed frequencies of the dataset. But how does one determine the expected frequency of the dataset? One of the important assumptions is that the two variables are independent, which means the variables do not influence each other. For independent variables, the statistical probability of any event involving both variables is calculated by multiplying the individual...
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This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...
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