System identification method based on Bayesian Network (BN-based SI) is developed.
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BN design describes causal relationship between structural parameters and response.
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Gaussian function is used for BN whose size is independent of number of FE meshes.
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Using BN inference instead of optimization, ill-posedness of SI problem is avoided.
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Examples show BN-based SI is accurate and insensitive to missing data and noises.
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