Bokui Chen

Dr. Bokui Chen


Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 May 2020 in Journal of Intelligent Transportation Systems
Verified
Journal Article
Closed access
FLFushi Lian
Fushi Lian
BCBokui Chen
Bokui Chen
KZKai Zhang
Kai Zhang
LMLixin Miao
Lixin Miao
JWJinchao Wu
Jinchao Wu
SLShichao Luan
Shichao Luan
In this paper, two new adaptive traffic signal control algorithms are proposed based on data from probe vehicles to realize the coordinated signal control of arterial roads. One is an iterative signal control algorithm, and the other is an optimized signal control algorithm. The proportion of vehicles in the nonstop group is selected as the indicator of the traffic state. The value for this indicator can be accurately estimated by data from probe vehicles. Our goal is to ease traffic congestion and enhance the capacities of traffic networks. Compared with the Webster fixed-time signal control algorithm, these two new adaptive signal control algorithms are evaluated on a microscopic simulation platform. Simulation results show that the average travel time is reduced by 32% under the iterative signal control algorithm and by 23% under the optimized signal control algorithm, and the average delay times are reduced by 36% and 35%, respectively. In the meantime, the average number of stops under the iterative signal control algorithm is reduced by 43%, and under the optimized signal control algorithm, by 67%. They indicate that the two new adaptive signal control algorithms are effective for easing traffic congestion and achieve the adaptive signal control objectives using real-time traffic information.

20 June 2018 in IET Intelligent Transport Systems
Verified
Journal Article
Open access
PDF file
ZLZhengping Li
Zhengping Li
KZKai Zhang
Kai Zhang
BCBokui Chen
Bokui Chen
YDYuhan Dong
Yuhan Dong
LZLin Zhang
Lin Zhang
This study proposes an applicable driver identification method using machine learning algorithms with driving information. The driving data are collected by a 3‐axis accelerometer, which records the lateral, longitudinal and vertical accelerations. In this research, a data transformation way is developed to extract interpretable statistics features from raw 3‐axis sensor data and utilise machine learning algorithms to identify drivers. To eliminate the bias caused by the sensor installation and ensure the applicability of their approach, they present a data calibration method which proves to be necessary for a comparative test. Four basic supervised classification algorithms are used to perform on the data set for comparison. To improve classification performance, they propose a multiple classifier system, which combines the outputs of several classifiers. Experimental results based on real‐world data show that the proposed algorithm is effective on solving driver identification problem. Among the four basic algorithms, random forests (RFs) algorithm has the greatest performance on accuracy, recall and precision. With the proposed multiple classifier system, a greater performance can be achieved in small number of drivers’ groups. RFs algorithm takes the lead in running speed. In their experiment, ten drivers are involved and over 5,500,000 driving records per driver are collected.

7 July 2023 in Systems
Verified
Journal Article
Open access
PDF file
BCBokui Chen
Bokui Chen
YCYaohui Chen
Yaohui Chen
YWYao Wu
Yao Wu
YXYuxuan Xiu
Yuxuan Xiu
Xiao FuXiao Fu
Xiao Fu
Zhang KaiZhang Kai
Zhang Kai
This paper studies how autonomous vehicles (AVs) influence future traffic and energy consumption when adopting various route guidance strategies, which can be divided into global information strategies and local information strategies according to the scope of information collection. A mixed traffic flow model is established. Then, an autonomous vehicle model is improved to investigate the impact of six route guidance strategies. The selected strategies are specifically evaluated in a double-route scenario, considering both single-exit and dual-exit configurations. Three indicators are chosen to evaluate traffic efficiency, including traffic flow, average speed and quantity of vehicles. Consumption per unit flux is the indicator of energy consumption level. Simulation results show that autonomous vehicles can improve traffic efficiency and reduce energy consumption.

20 January 2023 in Fractal and Fractional
Verified
Journal Article
Open access
PDF file
YXYuxuan Xiu
Yuxuan Xiu
KCKexin Cao
Kexin Cao
XRXinyue Ren
Xinyue Ren
BCBokui Chen
Bokui Chen
WCWai Kin (Victor) Chan
Wai Kin (Victor) Chan
Self-similar growth and fractality are important properties found in many real-world networks, which could guide the modeling of network evolution and the anticipation of new links. However, in technology-convergence networks, such characteristics have not yet received much attention. This study provides empirical evidence for self-similar growth and fractality of the technology-convergence network in the field of intelligent transportation systems. This study further investigates the implications of such fractal properties for link prediction via partial information decomposition. It is discovered that two different scales of the network (i.e., the micro-scale structure measured by local similarity indices and the scaled-down structure measured by community-based indices) have significant synergistic effects on link prediction. Finally, we design a synergistic link prediction (SLP) approach which enhances local similarity indices by considering the probability of link existence conditional on the joint distribution of two scales. Experimental results show that SLP outperforms the benchmark local similarity indices in most cases, which could further validate the existence and usefulness of the synergistic effect between two scales on link prediction.

1 January 2025
Verified
Conference Paper
Open access
PDF file
ZWZhiyuan Wang
Zhiyuan Wang
BCBokui Chen
Bokui Chen
YHYinya Huang
Yinya Huang
QCQingxing Cao
Qingxing Cao
MHMing He
Ming He
XLXiaodan Liang
Xiaodan Liang
Zhiyuan Wang, Bokui Chen, Yinya Huang, Qingxing Cao, Ming He, Jianping Fan, Xiaodan Liang. Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 6: Industry Track). 2025.

23 March 2018 in Frontiers of Physics
Verified
Journal Article
Closed access
PDF file
YLYing-Ting Lin
Ying-Ting Lin
XHXiao-Pu Han
Xiao-Pu Han
BCBokui Chen
Bokui Chen
JZJun Zhou
Jun Zhou
BWBing-Hong Wang
Bing-Hong Wang
Innovation, which involves technological transformation and management reorganization, brings about significant changes in modern society. In this paper, to investigate how innovations can be promoted, we propose a game-based model to study the co-evolutionary dynamics of human innovative behaviors. A simulation on scale-free networks is conducted, in which the innovative behavior of each node is determined and updated based on the feedback regarding its innovation, namely the diffusion of the innovation status. Numerical simulations of the model generate a series of patterns, which is consistent with people’s daily experiences and perceptions as regards real-world innovative behaviors. Specifically, various scaling spatiotemporal properties and rich structural impacts on dynamics can be observed. This model provides a novel approach to understand the evolution of innovative behaviors and provides insight for strategy studies of innovation promotion.