Patent Document ID: 10151592
Application ID: 15141070
Patent Status: 1

Claim One:
1. A method for evaluating a first map matcher using automatically generated ground truth data, the method comprising: identifying, by a processor, a route selected by a navigation device comprising one or more road segments; receiving, by the processor, positional data points collected while the navigation device travels the route; identifying, by the processor, a plurality of candidate road segments including at least the one or more road segments; generating, automatically by the processor, ground truth data by selecting one of the plurality of candidate road segments for each of the positional data points, wherein the one or more road segments are prioritized for selection; map matching, by the processor, using the first map matcher, each of the positional data points to one of the plurality of candidate road segments; comparing, by the processor, the first map matcher map matched positional data points to the ground truth data; scoring, by the processor, the first map matcher based on the comparison; map matching, by the processor, using a second map matcher, each of the positional data points to one of the plurality of candidate road segments; comparing, by the processor, the second map matcher map matched positional data points to the ground truth data; scoring, by the processor, the second map matcher based on the comparison; and selecting, by the processor, the first map matcher or second map matcher based on the scoring of the first map matcher and second map matcher.