Abstract:Due to the high dimensionality, non‐linearity and dynamic characteristics of chemical process data, a fault monitoring method based on temporal extension orthogonal neighbourhood preserving embedding (TONPE) is proposed. In order to make up for the shortcomings of the orthogonal neighbourhood preserving embedding (ONPE) algorithm, an information extraction strategy based on spatio‐temporal structure is developed. First, a local neighbourhood set with spatio‐temporal characteristics is established, and a weight… Show more
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