ITS Publications - The Institute of Transportation Studies at UC Irvine

conference paper | October 21, 2025

conference paper | January 2024

Qingzhao Zhang, Shuowei Jin, Ruiyang Zhu, Jiachen Sun, Xumiao Zhang, Qi Alfred Chen and Z. Morley Mao (2024) “On Data Fabrication in Collaborative Vehicular Perception: Attacks and Countermeasures”. 33rd USENIX Security Symposium (USENIX Security 24), pp. 6309–6326.

published journal article | January 01, 2026

published journal article | June 2023

Yiqiao Li, Andre Y. C. Tok, Zhe Sun, Stephen G. Ritchie and Koti Reddy Allu (2023) “LiDAR Vehicle Point Cloud Reconstruction Framework for Axle-Based Classification”, IEEE Sensors Journal, 23(11), pp. 11168–11180.

research report | December 31, 2025

research report | January 2023

Stephen G. Ritchie, Andre Tok, Yiqiao Li, Zhe Sun and Koti Reddy Allu (2023) Investigation of LiDAR Sensing Technology to Improve Freeway Traffic Monitoring. Research Report. ITS-Irvine.

presentation | December 31, 2025

presentation | December 2022

Koti Reddy Allu, Montana Reinoehl, Siwei Hu, Andre Tok, Wenlong Jin, Jared Sun and Stephen G. Ritchie (2022) “Investigation to Develop Impaired Driving Detection System Using Lidar”. NSF AI Workshop, Gainesville, Florida, 15 December.

published journal article | December 31, 2025

published journal article | May 2022

Yingji Xia, Zhe Sun, Andre Tok and Stephen Ritchie (2022) “A dense background representation method for traffic surveillance based on roadside LiDAR”, Optics and Lasers in Engineering, 152, p. 106982.

conference paper | October 21, 2025

conference paper | January 2022

Yiqiao Li, Andre Tok, Zhe Sun, Stephen G. Ritchie and Koti Reddy Allu (2022) “LiDAR Vehicle Point Cloud Reconstruction Framework for Axle-Based Classification”. 101st Annual Meeting of the Transportation Research Board.

conference paper | December 31, 2025

conference paper | January 2022

Qingzhao Zhang, Shengtuo Hu, Jiachen Sun, Qi Alfred Chen and Z. Morley Mao (2022) “On Adversarial Robustness of Trajectory Prediction for Autonomous Vehicles”. Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition, pp. 15159–15168.

published journal article | May 10, 2026

published journal article | December 2021

Yiqiao Li, Koti Reddy Allu, Zhe Sun, Andre Y. C. Tok, Guoliang Feng and Stephen G. Ritchie (2021) “Truck body type classification using a deep representation learning ensemble on 3D point sets”, Transportation Research Part C: Emerging Technologies, 133, p. 103461.

research report | October 21, 2025

research report | September 2021

Stephen G. Ritchie, Andre Tok, Yiqiao Li, Jared Sun and Koti R Allu (2021) Investigation of Truck Data Collection using LiDAR Sensing Technology Along Rural Highways. PSR-19-51.

working paper | March 19, 2026

working paper | August 2021

Yiqiao Li, Andre Tok, Zhe Sun, Stephen G. Ritchie and Koti Reddy Allu (2021) Vehicle Point Cloud Reconstruction Framework for FHWA axle-based Classification using Roadside LiDAR Sensor. Working Paper. Institute of Transportation Studies, Irvine.

conference paper | December 31, 2025

conference paper | January 2021

Shengtuo Hu, Qi Alfred Chen, Jiachen Sun, Yiheng Feng, Z. Morley Mao and Henry X. Liu (2021) “Automated Discovery of {Denial-of-Service} Vulnerabilities in Connected Vehicle Protocols”, in 30th USENIX Security Symposium (USENIX Security 21), pp. 3219–3236.

conference paper | May 13, 2026

conference paper | January 2021

Yiqiao Li, Koti R Allu, Zhe Sun, Andre Tok, Guoliang Feng and Stephen G. Ritchie (2021) “An Ensemble Approach to Truck Body Type Classification using Deep Representation Learning on 3D Point Sets”. 100th Transportation Research Board (TRB) Annual Meeting, Washington, DC.

conference paper | October 21, 2025

conference paper | January 2020

Jiachen Sun, Yulong Cao, Qi Alfred Chen and Z. Morley Mao (2020) “Towards robust {LiDAR-based} perception in autonomous driving: General black-box adversarial sensor attack and countermeasures”, in 29th USENIX Security Symposium (USENIX Security 20), pp. 877–894.

published journal article | December 31, 2025

published journal article | March 2018

Hao Yang, Lawrence Andres, Zhe Sun, Qijian Gan and Wen-Long Jin (2018) “Field tests of a dynamic green driving strategy based on inter-vehicle communication”, Transportation Research Part D: Transport and Environment, 59, pp. 289–300.

published journal article | December 31, 2025

published journal article | February 2018

Qinglong Yan, Zhe Sun, Qijian Gan and Wen-Long Jin (2018) “Automatic identification of near-stationary traffic states based on the PELT changepoint detection”, Transportation Research Part B: Methodological, 108, pp. 39–54.

published journal article | October 21, 2025

published journal article | October 2017

Zhe Sun, Wen-Long Jin and Stephen G. Ritchie (2017) “Simultaneous estimation of states and parameters in Newell's simplified kinematic wave model with Eulerian and Lagrangian traffic data”, Transportation Research Part B: Methodological, 104, pp. 106–122.

published journal article | October 21, 2025

published journal article | October 2017

Penghang Yin, Zhe Sun, Wen-Long Jin and Jack Xin (2017) “1 -minimization method for link flow correction”, Transportation Research Part B: Methodological, 104, pp. 398–408.

published journal article | October 21, 2025

published journal article | July 2016

Zhe Sun, Wen-Long Jin and ManWo Ng (2016) “Network sensor health problem”, Transportation Research Part C: Emerging Technologies, 68, pp. 300–310.

Phd Dissertation | December 31, 2025

Phd Dissertation | January 2016

Zhe Sun (2016) Freeway Traffic Parameter and State Estimation with Eulerian and Lagrangian Data. Ph.D.. UC Irvine.

research report | November 26, 2025

research report | January 2015

Zhe Sun, Wen-Long Jin and Stephen G Ritchie (2015) Simultaneous state and parameter estimation in newell's simplified kinematic wave model with heterogeneous data.