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IEEE/ICACT20210155 Slide.13
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It can be seen from Fig 5 and Fig 7 that, under normal circumstances, the time series of traffic flow difference between adjacent nodes on the motorway fluctuates around the value of 0, which is relatively stable. Then, ADF test is used to test the stability of time series, the result of which can reject the original hypothesis that the time series is unstable. | |
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