Coupled Continuous-Time Markov Chain–Bayesian Network Model for Dam Failure Risk Prediction

Islands are one of the most sensitive interfaces between global changes and land and sea dynamic effects, with high sensitivity and low stability. Therefore, under the dynamic coupling effect of human activities and frequent natural disasters, the vulnerability of the ecological environment of islands shows the characteristics of complexity and diversity. For the protection of island ecosystems, a system for the assessment of island ecosystems and studies on the mechanism of island ecological vulnerability are highly crucial. In this study, the North and South Changshan Islands of China were selected as the study area. Considering various impact factors of island ecological vulnerability, the geographical information systems (GIS) spatial analysis, field surveys, data sampling were used to evaluate island ecological vulnerability. The Bayesian network model was used to explore the impact mechanism of ecological vulnerability. The results showed that the ecological vulnerability of the North Changshan Island is higher than that of the South Changshan Island. Among all the indicators, the proportion of net primary productivity (NPP) and the steep slope has the strongest correlation with ecological vulnerability. This study can be used as references in the relevant departments to formulate management policies and promote the sustainable development of islands and their surrounding waters

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Misper-Bayes: A Bayesian Network Model for Missing Person Investigations

IEEE Access ◽

10.1109/access.2021.3069081 ◽

2021 ◽

pp. 1-1

Author(s):

Denis Reilly ◽

Mark Taylor ◽

Paul Fergus ◽

Carl Chalmers ◽

Steven Thompson

Keyword(s):

Bayesian Network ◽

Network Model ◽

Bayesian Network Model

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A Causal Bayesian Network Model for Resolving Complex Wicked Problems

2021 IEEE International IOT, Electronics and Mechatronics Conference (IEMTRONICS) ◽

10.1109/iemtronics52119.2021.9422608 ◽

2021 ◽

Author(s):

Daniel T. Semwayo ◽

Ritesh Ajoodha

Keyword(s):

Bayesian Network ◽

Network Model ◽

Wicked Problems ◽

Bayesian Network Model ◽

Causal Bayesian Network

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Optimal adaptive sampling for a symmetric two-state continuous time Markov chain

Econometric Reviews ◽

10.1080/07474938.2019.1701808 ◽

2020 ◽

Vol 39 (6) ◽

pp. 602-611

Author(s):

Jon Michel

Keyword(s):

Markov Chain ◽

Continuous Time ◽

Adaptive Sampling ◽

Continuous Time Markov Chain

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Probabilistic Model-Based Fault Diagnosis of the Rotor System

ASME 2007 Power Conference ◽

10.1115/power2007-22072 ◽

2007 ◽

Author(s):

Jiye Shao ◽

Rixin Wang ◽

Jingbo Gao ◽

Minqiang Xu

Keyword(s):

Fault Diagnosis ◽

Bayesian Network ◽

Network Model ◽

Rotating Machinery ◽

Rotor System ◽

Bayesian Network Model ◽

Diagnosis System ◽

Model Based ◽

Core Components ◽

Fault Diagnosis System

The rotor is one of the most core components of the rotating machinery and its working states directly influence the working states of the whole rotating machinery. There exists much uncertainty in the field of fault diagnosis in the rotor system. This paper analyses the familiar faults of the rotor system and the corresponding faulty symptoms, then establishes the rotor’s Bayesian network model based on above information. A fault diagnosis system based on the Bayesian network model is developed. Using this model, the conditional probability of the fault happening is computed when the observation of the rotor is presented. Thus, the fault reason can be determined by these probabilities. The diagnosis system developed is used to diagnose the actual three faults of the rotor of the rotating machinery and the results prove the efficiency of the method proposed.

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