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Parallelized Fusion on Multisensor Transportation Data: A Case Study in CyberITS

Identifieur interne : 000208 ( Istex/Corpus ); précédent : 000207; suivant : 000209

Parallelized Fusion on Multisensor Transportation Data: A Case Study in CyberITS

Auteurs : Yingjie Xia ; Xiumei Li ; Zhenyu Shan

Source :

RBID : ISTEX:340B6812E07F0B93ACDA4150D13C6571693C0CF5

Abstract

With increasing requirements on traffic efficiency, environmental quality, energy efficiency, and economic productivity, intelligent transportation systems (ITS) research, which is centered on traffic state evaluation, meets two grand challenges. One is to process heterogeneous transportation data collected from different types of traffic sensors and the other is to reduce the high computation intensity for processing massive transportation data. To overcome both challenges, this paper proposes an approach using parallelized fusion on multisensor transportation data. Parallelized fusion is an embodied case of CyberITS framework, which is developed for the synthesis of cyberinfrastructure and ITS. The fusion functionality is shaped by a rough evidential fusion model (REFM) based on rough set and Dempster–Shafer evidence theories. The REFM consists of four components, which are sensor data input, bootstrapping rough conversion, hierarchical evidential fusion, and traffic state output. Their computation intensity is centered on conversion and fusion components, which can be optimized by the algorithm‐ and data‐centric parallelization, respectively. Computational experiments for accuracy and efficiency demonstrate that parallelized fusion achieves a distributed, high‐performance, and collaborative CyberITS implementation to provide accurate and real‐time traffic state evaluation.

Url:
DOI: 10.1002/int.21592

Links to Exploration step

ISTEX:340B6812E07F0B93ACDA4150D13C6571693C0CF5

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