Automated Determination of a Parameterization of an Evaluation Method

A method for automated determination of a parameterization of an evaluation method via a computer, the evaluation method being suitable and being provided for identification of particular sequences of messages placed in a message archive of an industrial plant, the method comprising:

• a) creating a comparison archive and storing reference messages in the created comparison archive, a number of the reference messages stored in the created comparison archive substantially corresponding to a number of messages which are part of the message archive of the industrial plant, and the created comparison archive including statistical properties comparable with the message archive of the industrial plant;
• b) utilizing the evaluation method to identify particular sequences of reference messages stored in the created comparison archive;
• c) stipulating a parameterization with which the identification of particular sequences of messages of the reference messages stored in the created comparison archive is influenceable via the evaluation method such that a relative number of particular sequences identified during the evaluation in relation to all the sequences stored in the created comparison archive is quantitatively smaller than a predetermined threshold value;
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• d) providing the determined parameterization for performing the evaluation method to identify the particular sequences of the messages stored in the message archive.

A method for automated determination of a parameterization of an evaluation method via a computer, the evaluation method is utilized to evaluate a message archive with a set of messages which are generated during at least one of (i) control of an industrial plant and (ii) monitoring of the industrial plant, the messages including at least two message identifications differing from one another, the method comprising:

• a) creating a comparison archive and storing reference messages in the created comparison archive, a number of the reference messages stored in the created comparison archive substantially corresponding to a set of messages which are stored in the message archive, the created comparison archive including statistical properties comparable with a message archive of the industrial plant;
• b) determining an absolute occurrence frequency of individual message identifications within a set of reference messages stored in the created comparison archive;
• c) determining a transition probability of a message with a first message identification to a message with a second message identification in all messages of the reference messages stored in the created comparison archive via a respective absolute occurrence frequency;
• d) determining a first threshold parameter for a minimum transition probability between two message identifications such that a relative number of pairs of message identifications, the transition probabilities of which after the determination of the first threshold parameter, lie above the first threshold parameter to be determined, in relation to all the pairs of messages stored in the comparison archive with, in each case, a first message identification and a second message identification is quantitatively smaller than a previously determined threshold value;
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• e) providing a determined parameterization for performing the evaluation method to evaluate the message archive.

A non-transitory storage medium encoded with a computer program which, when executed by a processor of a computer, causes automated determination of a parameterization of an evaluation method via a computer, the evaluation method being suitable and being provided for identification of particular partial data items of a data set of an industrial plant, the computer program comprising:

• a) program code instructions for generating a comparison data set and storing reference data in the generated comparison data set, a number of reference data items stored in the generated comparison data set substantially corresponding to a number of data items which are part of the data set of the industrial plant and the generated comparison data set including statistical properties comparable with the data set of the industrial plant;
• b) program code instructions for utilizing the evaluation method to evaluate the reference data items stored in the generated comparison data set;
• c) program code instructions for stipulating a parameterization with which the identification of particular partial data items of the reference data items stored in the comparison data set is influenceable via the evaluation method, such that a relative number of the particular partial data items identified during the evaluation in relation to all the reference data items stored in the generated comparison data set is quantitatively smaller than a predetermined threshold value;
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• d) program code instructions for providing the determined parameterization for carrying out the evaluation method for identification of particular partial data items of the data set of the industrial plant.