Adaptive monitoring of the process operation based on symbolic episode representation and hidden Markov models with application toward an oil sand primary separation
Computers & Chemical Engineering(2014)
摘要
•Abnormal event detection with triangular representation of process trends.•Adaptive fuzzy membership functions are applied for discretization.•The expectation maximization (EM) algorithm is used for parameter estimation.•Hidden Markov model is used to describe mode transitions in data classification.•Evaluation with an industrial process.
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关键词
Symbolic episode representation,Abnormal event detection,EM algorithm,Bayesian approach,Fuzzy logic,Hidden Markov model
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