Research On The Judgment Model Algorithm For The Dismember Change Behavior Of Highway Construction

For a long time,engineering change has been one of the key factors that lead to the phenomenon of "three superpowers" of highway construction projects.At present,many experts and scholars have conducted in-depth research on the management methods and control strategies of engineering change and the impact of engineering change on the project.However,there are not many research achievements in the control of engineering change violations.In reaction to the phenomenon,in this thesis,based on the engineering measurement payment data,to dismember change behavior of one of the engineering change violations judgment,the highway construction projects in parts change behavior judgment model was designed.The main contents include:According to the behavior characteristics of dismemberment,the dismemberment change behavior can be divided into the behavior of the pile dismember and the change of content.A correlation judgment model of pile number was designed,which is used to screen the application of engineering change with continuous,cross,inclusion and coincidence in the application of tens of thousands of engineering change applications.For the pile dismember behavior,a similarity calculation algorithm based on Jaccard similarity coefficient was designed,and the algorithm of similarity calculation of change content based on TF-IDF and weighted two graph matching was designed too.Combine these two algorithms,a model algorithm for the dismemberment of pile was designed.For the Change the content split behavior,the based on principal component analysis and modified K-Means clustering analysis algorithm was designed.Finally,the model algorithm and the change content split judgment model algorithm were verified by the actual engineering data.The verification results showed that the judgment accuracy of the model algorithm for the dismemberment of pile is 86%,and the judgment accuracy of the change content split judgment model algorithm is 83%.Therefore,it can be proved that the proposed model algorithm for the dismemberment of highway construction projects is feasible and reliable.