Traffic accident prediction method based on unbiased non-homogeneous grey model and Markov model
A traffic accident and gray model technology, applied in forecasting, instruments, complex mathematical operations, etc., can solve the problems of large forecast deviation and low accuracy, and achieve the effect of improving forecast accuracy.
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[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0055] 1. Data source
[0056] According to statistics from the national data website (http: / / data.stats.gov.cn / index.htm), my country’s national road traffic accident statistics from 2002 to 2015 are as follows: figure 1 Shown.
[0057] 2. Unbiased inhomogeneous NGM (1,1,k) gray model modeling
[0058] Taking the total number of traffic accidents nationwide from 2002 to 2015 as the research object, an unbiased inhomogeneous NGM (1,1,k) gray...
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