A Method of Measuring Similarity Between Functions Based on Weighted Euclidean Distance

A Euclidean distance and similarity technology, which is applied in instrument, calculation, character and pattern recognition, etc., can solve the problems of equipment use efficiency and ability to complete tasks, not taking into account, frequent failures, etc.

Active Publication Date: 2021-07-16
BEIHANG UNIV
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Problems solved by technology

[0002] With the increase in the complexity and diversity of equipment design structures, more and more problems that were not considered in the design or difficult to solve were exposed after they were put into use. Ability is greatly affected

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  • A Method of Measuring Similarity Between Functions Based on Weighted Euclidean Distance
  • A Method of Measuring Similarity Between Functions Based on Weighted Euclidean Distance
  • A Method of Measuring Similarity Between Functions Based on Weighted Euclidean Distance

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Embodiment Construction

[0032] The essence of function is a beneficial effect. The method of the present invention establishes a set of functional characterization factors capable of characterizing the uniqueness of the function through in-depth analysis of the functional characterization structure, and calculates the weighted Euclidean distance between the functional characterization sets corresponding to different functions to measure the similarity between functions degree.

[0033] figure 1 A method for measuring similarity between functions based on weighted Euclidean distance of the present invention is shown, which includes:

[0034] A kind of method of the similarity between measurement functions based on weighted Euclidean distance of the present invention comprises:

[0035] Establish a functional characterization structure applicable to the faulty product and the product to be evaluated, where the functional characterization structure includes the product’s functional body, functional po...

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Abstract

The invention discloses a method for measuring the similarity between functions based on weighted Euclidean distance, including: establishing a characterization structure applicable to the functions of the faulty product and the product to be evaluated; analyzing the characterization structure of the functions of the faulty product and the product to be evaluated , establish a set of functional characterization factors that can uniquely determine a function; determine a functional characterization index for each functional characterization factor of the established functional characterization factor set; The characterization factors are used as the elements of the matrix, respectively establish the representation matrix of the fault function and the representation matrix of the function to be evaluated; use the weighted Euclidean distance formula to calculate the distance between the representation matrix of the fault function and the representation matrix of the function to be evaluated; according to the calculated The distance between the faulty function characterization matrix and the characterization matrix of the function to be evaluated is used to calculate the similarity between the function of the faulty product and the function of the product to be evaluated.

Description

technical field [0001] The invention relates to the field of fault management, in particular to a method for measuring the similarity between functions based on weighted Euclidean distance, in particular a method for measuring the similarity between a function and a faulty function. Background technique [0002] With the increase in the complexity and diversity of equipment design structures, more and more problems that were not considered in the design or difficult to solve were exposed after they were put into use. Ability is greatly affected. In addition to improving the equipment design to reduce the possibility of failure, it is very important to improve the performance of the equipment in the use stage, which is to closely monitor the equipment status, judge and predict the occurrence and development of failure as accurately as possible, and use scientific failure management methods to Realize the optimal management of equipment in use phase. [0003] Failure recover...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62
CPCG06F18/22
Inventor 王美慧吕川周栋刘曦
Owner BEIHANG UNIV
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