METHOD FOR INFERRING TYPE OF ROAD SEGMENT
First Claim
1. A method for inferring a type of a road segment, comprising the steps of:
- collecting historical driving trajectory data of a plurality of vehicles for a target road segment, performing a statistic on the historical driving trajectory data, and obtaining statistical features of the target road segment;
extracting topological features of the target road segment from topological structure data of a road network in which the target road segment locates ;
merging the statistical features with the topological features of the target road segment and obtaining an arrogated feature vector of the target road segment; and
building a logistic regression model according to the arrogated feature vector and obtaining a first inferred type of the target road segment.
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Abstract
Present invention provides a method for inferring the type of a road segment, comprising the steps of: collecting historical driving trajectory data of a plurality of vehicles for a target road segment, performing a statistic on the historical driving trajectory data, and obtaining statistical features of the target road segment; extracting topological features of the target road segment from topological structure data of the road network; merging the statistical features with the topological features of the target road segment, and obtaining an arrogated feature vector of the target road segment; building a logistic regression model according to the arrogated feature vector, and obtaining a first inferred type of the target road segment. The present embodiment considers both the driving trajectory data of a plurality of vehicles and the topological structure data of the road network, the accuracy of the present invention is high, and the inferred result is accurate.
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Citations
10 Claims
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1. A method for inferring a type of a road segment, comprising the steps of:
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collecting historical driving trajectory data of a plurality of vehicles for a target road segment, performing a statistic on the historical driving trajectory data, and obtaining statistical features of the target road segment; extracting topological features of the target road segment from topological structure data of a road network in which the target road segment locates ; merging the statistical features with the topological features of the target road segment and obtaining an arrogated feature vector of the target road segment; and building a logistic regression model according to the arrogated feature vector and obtaining a first inferred type of the target road segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification