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Kochengin A.

E-mail	kochenginalexey@gmail.com
Articles	Nonparametric criterion of Wilcoxon as an element of the procedure for the recognition of critical events The problem of creating highly efficient algorithms for identifying critical events as part of decision support procedures in technological management is considered. The article proposes an approach to increasing the power of the nonparametric Wilcoxon criterion for decision making in situations with violations in compared data samples of the type "vertical displacement" and "scale". The modified Wilcoxon criterion is considered as a tool for identifying deviations in the conduct of the technological process, which do not exceed the threshold values, but have a significant impact on the technical and economic indicators. The proposed method of identifying critical events using the modified Wilcoxon criterion makes it possible to determine both the fact of the presence of an event and, in a number of cases, their identification. The article proves that the power of the proposed modified Wilcoxon test does not deteriorate compared to the traditional Wilcoxon test. The problem of detecting significant deviations in the accounting of electricity consumption at the boundary point of the grid company and the consumer from the parameters established by contract is reviewed as an example. Electric meters supposed to be the information sources in this case. The data received from smart meters is usually represented in the form of so-called “load profiles”. The performed numerical experiments through the example of processing the credentials for the power consumption of one of the petrochemical industrial enterprises allowed testing the possibility of using the modified Wilcoxon criterion as part of an effective element of the algorithm for detecting critical events. Also, the problematic issues of inclusion of this module in the automated decision support system for technological management are identified and the corresponding software is proposed. Read more...

E-mail

kochenginalexey@gmail.com

Articles

Nonparametric criterion of Wilcoxon as an element of the procedure for the recognition of critical events

The problem of creating highly efficient algorithms for identifying critical events as part of decision support procedures in technological management is considered. The article proposes an approach to increasing the power of the nonparametric Wilcoxon criterion for decision making in situations with violations in compared data samples of the type "vertical displacement" and "scale". The modified Wilcoxon criterion is considered as a tool for identifying deviations in the conduct of the technological process, which do not exceed the threshold values, but have a significant impact on the technical and economic indicators. The proposed method of identifying critical events using the modified Wilcoxon criterion makes it possible to determine both the fact of the presence of an event and, in a number of cases, their identification. The article proves that the power of the proposed modified Wilcoxon test does not deteriorate compared to the traditional Wilcoxon test. The problem of detecting significant deviations in the accounting of electricity consumption at the boundary point of the grid company and the consumer from the parameters established by contract is reviewed as an example. Electric meters supposed to be the information sources in this case. The data received from smart meters is usually represented in the form of so-called “load profiles”. The performed numerical experiments through the example of processing the credentials for the power consumption of one of the petrochemical industrial enterprises allowed testing the possibility of using the modified Wilcoxon criterion as part of an effective element of the algorithm for detecting critical events. Also, the problematic issues of inclusion of this module in the automated decision support system for technological management are identified and the corresponding software is proposed.

Authors

Kochengin A.

Nonparametric criterion of Wilcoxon as an element of the procedure for the recognition of critical events

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