Intersection signal control multi-period division method based on k-shape

The invention discloses an intersection signal control multi-period division method based on k-shape, and the method comprises the steps: carrying out the similarity matching of shapes during the division of traffic control periods through employing a k-shape algorithm, enabling the method to adapt...

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Bibliographic Details
Main Authors YUAN LI, ZHU SHENGXUE, NI SHIMING, LI XINLEI
Format Patent
LanguageChinese
English
Published 07.06.2024
Subjects
PHYSICS
SIGNALLING
TRAFFIC CONTROL SYSTEMS
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Summary:The invention discloses an intersection signal control multi-period division method based on k-shape, and the method comprises the steps: carrying out the similarity matching of shapes during the division of traffic control periods through employing a k-shape algorithm, enabling the method to adapt to time sequences with different lengths, and determining the clustering number through a Clinski-Harabasz (CH) index and a contour coefficient method, calculating the distance between each time sequence and the new cluster center by adopting k-shape clustering, redistributing the time sequence to the nearest cluster according to the minimum distance, and updating the cluster center again until the cluster center is unchanged or reaches a preset number of iterations; and performing trend comparison on the output visual clustering result and the data, and dividing each group of data into the cluster to which the data belongs. According to the method, the defect that the k value needs to be determined manually in the
Bibliography:Application Number: CN202410259404