Road roller construction process knowledge base construction method and system based on improved decision-making tree

Abstract

The invention provides a road roller construction process knowledge base construction method and system based on an improved decision-making tree. The method comprises the steps of: constructing a road roller construction process database according to the existing case data of a road roller construction project; judging whether various data of construction objects and construction requirements in the road roller construction process data are in normal distribution or not, if so, keeping the existing data unchanged, and otherwise, converting non-normal distribution data into normal distribution data; calculating a Gini system of each judgment attribute and arranging the Gini systems in sequence to preliminarily form a decision-making tree; performing inverse transformation on the converted data in the decision-making tree; performing pruning optimization processing on the decision-making tree after inverse transformation to form a final improved decision-making tree model; and carrying out classification analysis on actual data by utilizing the improved decision tree model to obtain a road roller construction scheme. According to the invention, it can be ensured that road roller construction process data are totally in normal distribution, so that the limitation of an existing decision-making tree is solved, and engineers can be assisted to make a decision for road roller construction.

Description

technical field [0001] The invention belongs to the technical field of road roller construction, and in particular relates to a method and system for constructing a road roller construction process knowledge base based on an improved decision tree. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In recent years, with the advent of the era of big data, the civil engineering industry has ushered in new opportunities and challenges. The traditional construction decision-making process is cumbersome and consumes manpower and material resources. Scientific researchers began to try to adopt new technologies to simplify the decision-making process, so as to achieve the purpose of accurately and quickly determining the process flow. [0004] The traditional method of determining various processes and parameters of the construction process of roa...

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Problems solved by technology

[0004] The traditional way of determining various processes and parameters of the construction process of the road roller in the civil engineering industry is cumbersome and relies on the experience of engineers, which is highly subjective

The determination of each parameter must consult the relevant information, and then the engineer will make an overall decision, which is not conducive to the development of specific construction, and it is easy to delay the construction period or make wrong construction.

[0005] At present, although some researchers use data to generate decisions through decision trees, the decision tree has its own limitations in the processing of non-normal data, and it is easy to fall into local optimum, and it is difficult to ensure that the road roller construction process data is all normal distribution. There are great limitations

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