文章基本信息

标题：Optimal road accident case retrieval algorithm based on k-nearest neighbor:
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作者：Xianyuan Dong ; Mingjie Lu
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2019
卷号：11
期号：2
DOI：10.1177/1687814018824523
语种：English
出版社：Sage Publications Ltd.
摘要：An optimal algorithm which can help traffic managers to make more accurate decisions from previous road accident case knowledge has been proposed. The algorithm based on k-nearest neighbor determines weight value of each accident case feature based on information entropy index, establishes a road accident case retrieval base using two-step cluster algorithm, and proposes a global similarity model of road accident cases. Then, a new comprehensive evaluation index called matching degree is presented. And then, a prototype system is developed to conduct case retrieval experiments to verify the performance of the proposed algorithm for road accident case retrieval. The result of the experiments clearly demonstrates the effectiveness of this case retrieval algorithm for road accident management in real time.
关键词：Road accident; case retrieval base; similarity model; case retrieval evaluation; case retrieval algorithm; k-nearest neighbor