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- W2003660468 abstract "The paper presents a Variational Bayesian (VB) method to allow a Gaussian Mixture Model (GMM) to be clustered automatically with its mixture components in order to facilitate the discrimination of what can be regarded as steady-state and transient machine operation. The determination of whether a unit is considered to be in steady-state, or subject to external transients is an important pre-processing scenario for both sensor- and machine-fault detection algorithms, for instance, Principal Component Analysis (PCA) based Squared Prediction Error (SPE), which is known to produce excessive `false alarms' when fed with measurements that include transient unit operation. Here, the resulting Variational Bayesian Gaussian Mixture Model (VBGMM) method is utilized to discriminate the operational behaviour of industrial gas turbine systems. Daily batches of measurement data from in-the-field systems are used to show that the VBGMM provides a useful pre-processing tool for subsequent diagnostic and prognostic algorithms." @default.
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- W2003660468 date "2013-09-01" @default.
- W2003660468 modified "2023-10-16" @default.
- W2003660468 title "Steady-state and transient operation discrimination by Variational Bayesian Gaussian Mixture Models" @default.
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- W2003660468 doi "https://doi.org/10.1109/mlsp.2013.6661970" @default.
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