Optimal road accident case retrieval algorithm based on -nearest neighbor

Optimal road accident case retrieval algorithm based on -nearest neighbor

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 a...

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Main Authors: Xianyuan Dong, Mingjie Lu
Format: Article
Language:English
Published: SAGE Publishing 2019-02-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814018824523
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spelling doaj-fae0ab65f9f64427bdec9ddefd7b38142020-11-25T02:52:40ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402019-02-011110.1177/1687814018824523Optimal road accident case retrieval algorithm based on -nearest neighborXianyuan Dong0Mingjie Lu1Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai, P.R. ChinaSchool of Accounting, Shanghai Lixin University of Accounting and Finance, Shanghai, P.R. ChinaAn 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.https://doi.org/10.1177/1687814018824523
collection DOAJ
language English
format Article
sources DOAJ
author Xianyuan Dong
Mingjie Lu
spellingShingle Xianyuan Dong
Mingjie Lu
Optimal road accident case retrieval algorithm based on -nearest neighbor
Advances in Mechanical Engineering
author_facet Xianyuan Dong
Mingjie Lu
author_sort Xianyuan Dong
title Optimal road accident case retrieval algorithm based on -nearest neighbor
title_short Optimal road accident case retrieval algorithm based on -nearest neighbor
title_full Optimal road accident case retrieval algorithm based on -nearest neighbor
title_fullStr Optimal road accident case retrieval algorithm based on -nearest neighbor
title_full_unstemmed Optimal road accident case retrieval algorithm based on -nearest neighbor
title_sort optimal road accident case retrieval algorithm based on -nearest neighbor
publisher SAGE Publishing
series Advances in Mechanical Engineering
issn 1687-8140
publishDate 2019-02-01
description 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.
url https://doi.org/10.1177/1687814018824523
work_keys_str_mv AT xianyuandong optimalroadaccidentcaseretrievalalgorithmbasedonnearestneighbor
AT mingjielu optimalroadaccidentcaseretrievalalgorithmbasedonnearestneighbor
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