Abstract
Aiming at the problem of roller coaster evaluation, this paper puts forward a method of objective evaluation of roller coaster TOPSIS method based on Mahalanobis distance. The descriptive numerical information of the existing 5124 roller coasters in the world is crawled by using the network crawler technology. According to the TOPSIS algorithm, “The World’s Top Ten Roller Coaster” list is generated and the roller coaster ranking based on roller coaster speed, height, length and inversion number is obtained. By introducing two indexes of information coverage and information difference rate, the roller coaster rating system is compared and discussed horizontally and vertically.
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