Seung Woo Steve Ham
Curriculum Vitae
Postdoctoral Researcher at National University of Singapore
Intro to Curriculum Viate
Hi, I am a postdoctoral researcher in the BeCos Lab at the National University of Singapore.
I am very interested in solving problems in traffic phenomena based on machine learning. If it's an interesting problem, I don't particularly mind the field.
Research Interests
Optimization with Machine Learning, Vehicle Routing, Demand Prediction, Scheduling, and Urban Network Analysis
Education
Ph.D., Seoul National University (Mar. 2018–Aug. 2023)
Dept. of Civil and Environmental Engineering, Academic Advisor: Dong-Kyu Kim
B.S., Seoul National University (Mar. 2014–Feb. 2018)
Major: Dept. of Civil and Environmental Engineering
Minor: Dept. of Industrial Engineering
Gyeonggi Science High School For Gifted (Mar. 2011-Feb. 2014)
Publications
"A Gentle Introduction and Tutorial on Deep Generative Models in Transportation Research", Seongjin Choi*, Zhixiong Jin, Seung Woo Ham, Jiwon Kim, and Lijun Sun, In 2nd Revision, Transportation Research Part C: Emerging Technologies
"Real-time Dynamic Origin-Destination Matrix Estimation Using Metamodel-based Model Predictive Control", Donggyu Min, Hyunsoo Yun, Dong-Kyu Kim, and Seung Woo Ham*, In 2nd Revision, Transportation Research Record
"Establishing an Index on Adjacent Network Impact for Extensive Understanding of a Link in Urban Networks", Seung Woo Ham, Eui-Jin Kim, and Dong-Kyu Kim*, In Preparation, Ready for Submission to Transportation Research Part A: Policy and Practice
"Navigating the Non-Compliance Effects on System Optimal Route Guidance Using Reinforcement Learning", Hyunsoo Yun, Eui-Jin Kim, Seung Woo Ham, and Dong-Kyu Kim*, Transportation Research Part C: Emerging Technologies, 2024
"Real-time Estimation of Origin-Destination Matrices Using a Deep Neural Network for Digital Twins", Donggyu Min, Hyunsoo Yun, Seung Woo Ham, and Dong-Kyu Kim*, Transportation Research Record, in 1st Revision
“User Segmentation based on Travel Regularity in E-scooter Sharing Service", Seong-Yeon Park, Seung Woo Ham, and Dong-Kyu Kim*, Transportation research record, 2023
"Deep multimodal learning for traffic speed estimation combining dedicated short-range communication and vehicle detection system data", Jin Hong Min, Seung Woo Ham, Dong-Kyu Kim, and Eun Hak Lee*, Transportation research record, 2023
"Price incentive strategy for the E-scooter sharing service using deep reinforcement learning", Hyunsoo Yun, Eui-Jin Kim, Seung Woo Ham, and Dong-Kyu Kim*, Journal of Intelligent Transportation Systems, 2023
"Enhancing the Accuracy of Peak Hourly Demand in Bike-Sharing Systems using a Graph Convolutional Network with Public Transit Usage Data", Jung-Hoon Cho, Seung Woo Ham, and Dong-Kyu Kim*, Transportation research record, 2021
"Spatiotemporal Demand Prediction Model for E-Scooter Sharing Services with Latent Feature and Deep Learning", Seung Woo Ham, Jung-Hoon Cho, Sangwoo Park, and Dong-Kyu Kim*, Transportation research record, 2021
"Investigating the influential factors for practical application of multi-class vehicle detection for images from unmanned aerial vehicle using deep learning models", Seung Woo Ham, Ho-Chul Park, Eui-Jin Kim, Seung-Young Kho, and Dong-Kyu Kim*, Transportation Research Record, 2020
"Extracting vehicle trajectories using unmanned aerial vehicles in congested traffic conditions", Eui-Jin Kim, Ho-Chul Park, Seung Woo Ham, Seung-Young Kho, and Dong-Kyu Kim*, Journal of Advanced Transportation, 2019
Scholarships and Awards
Scholarships
Google Travel Grant, 2023
Presidential Science Scholarship, 2014-2017
KOTAA Travel Grant, 2020
Google Student Travel Grant Program, 2023
KOTAA (Korean Transportation Association in America) Travel Grant, 2020
No Myungho Scholarship, 2020
Paan Scholarship Foundation, 2020
Presidential Science Scholarship, 2014-2018
Awards
Finalist, TRB Artificial Intelligence and Advanced Computing Applications Committee Best Dissertation Competition, 2024
Next Generation Engineering Leader, National Academy of Engineering of Korea, 2017
Best Paper Award, International Conference of KST & IPTF, 2022
Finalist in the 2024 TRB Artificial Intelligence and Advanced Computing Applications Committee Best Dissertation Competition
Best Paper Award, The 2023 Conference of Korean Society of Transportation & Korea Planning Association, 2023
Best Paper Award, The 40th Anniversary International Conference of KST and IPTF, 2022
Best Paper Award, The Conference on the Korea Institute of Intelligent Transport Systems, 2018, 2021, 2023
Next Generation Engineering Leader Award, The National Academy of Engineering of Korea, 2017
Global Entrepreneurship Challenge Winner, WEEF and GEDC, 2016
Experiences and Projects
Teaching Experiences
L0444.000600 "Application of Computing: Machine Learning Concept and Applications", Teaching Assistant (2022 Spring, 2023 Spring)
Faculty of Liberal Education, Korean and English Peer Tutor (2016 Spring)
Internship Experiences
MOVV
Development of POI Recommendation System
Nov. 2020 - Mar. 2021
Deer Coperation
Analysis for Busineess Decisions
May. 2019 – Jan. 2020
U. C. Berkeley
Research Intern at U. C. Berkeley SafeTREC
Advisor: koo hong chung
Jun. 2019 – Aug. 2019
BMW Korea
Technology Scout at BMW Korea R&D Center
Dec. 2016 – Oct. 2017
Washington University in St. Louis
Research Intern at Environmental Nanochemistry Lab
Advisor: Young-Shin Jun
Jun. 2016 - Aug. 2016
Seoul National University
Research Intern at Climate Change Adaptation in Water Resources Lab
Advisor: Young-Oh Kim
Jun. 2014
Invitied Talks
Seminar Presentation, "Development and application of infrastructure sensor-based information generation model", Special Session on The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 17, 2023
Seminar Presentation: "Measuring the Impact on Speed Reduction in Adjacent Networks of a Link", Korea Institute of Civil Engineering and Building Technology, Aug. 16, 2023
Seminar Presentation, "Future Life in 2050", Korean Peninsula Land Forum in The National Academy of Engineering of Korea, Feb. 7, 2023
Seminar Presentation, "An examination of individual economic attitudes within the social system", Young Engineers Honor Society in The National Academy of Engineering of Korea, Sep. 17, 2022
Projects
"Development and Application of Multimodal Deep Learning for the Generation of Traffic Information in Sensor-Uninstalled Sections, 2023 - Present
"Development of a Digital Twin Platform Based on Reinforcement Learning and Data Generation for Real-time Evaluation of Network-level Traffic Control Strategies", National Research Foundation. 2022 - Present
"Development of information generation and operation management technology for shaded sections of traffic information for the cooperative traffic control strategy", National Police Agency. 2021 - Present
"Establishment of Gyeongsangnam-do urban rail network plan" Gyeongsangnam-do. 2020 - 2023
"Development of a data-driven activity-based transport demand model using an interpretable deep learning approach" Ministry of Science and ICT. 2020 - 2022
"Optimal density estimation project for each region", Deer Corporation. 2020
"Analysis of the effect of bus route adjustment for Daejeon tram operation", Korea Railroad Research Institute. 2020
"Effect evaluation service through case analysis and advancement of urban and metropolitan railroad rapidization usage patterns", Korea Railroad Research Institute. 2020
"Establishment of railroad network construction plan considering efficient linkage operation in the future", Korea National Railway. 2019 - 2020
"Generating micro-traffic information by lane using an image-based deep generation model", Ministry of Science and Technology Information and Communication. 2019
"A study on traffic information collection system and information provision method", Ministry of Land, Infrastructure and Transport. 2018 - 2019
"Pre-feasibility study service for Incheon Line 2 extension (Grand Park~Shinansan Line)", Incheon Metropolitan City. 2018
"Development of a preemptive safety support system for pedestrians vulnerable to walking based on big data analysis of gait behavior using video monitoring technology", Seoul Industry Promotion Agency. 2018
"Integrated payment technology development and pilot operation for smart mobility service support", Ministry of Land, Infrastructure and Transport. 2018.
Conference Proceedings and Other Peer-reviewed Articles
"Enhancing Accuracy and Reliability of Origin-Destination Matrix Estimation Using Ensemble Empirical Mode Decomposition", Eui-Jin Lee, Donggyu Min, Seung Woo Ham, and Dong-Kyu Kim*, 104th Annual Meeting of the Transportation Research Board, Jan. 5–9, 2025
"Speed Harmonization Based on Multi-Agent Reinforcement Learning for Mitigating Traffic Congestion Under Mixed Traffic Environment", Seung-Hyeon Lee, Seung Woo Ham, Hyunsoo Yun, and Dong-Kyu Kim*, 104th Annual Meeting of the Transportation Research Board, Jan. 5–9, 2025
"Real-Time Dynamic Origin-Destination Matrix Estimation Using Metamodel-Based Model Predictive Control", Donggyu Min, Hyunsoo Yun, Seung Woo Ham, and Dong-Kyu Kim*, 104th Annual Meeting of the Transportation Research Board, Jan. 5–9, 2025
"Integrating Data-Driven and Model-Driven Approaches for Traffic State Estimation in Data-Deficient Areas", Jeric Kim, Seung Woo Ham, Jin Hong Min, Hyun-Seok Lee, and Dong-Kyu Kim*, 104th Annual Meeting of the Transportation Research Board, Jan. 5–9, 2025
"Accurate Estimated Time of Arrival Prediction Using Real-Time Path-Level Speed Computation", Pooreumoe Kim, Seung Woo Ham, Jungsoo Park, and Jungmin Kim*, 2024 IEEE 27th international conference on intelligent transportation systems (ITSC), Sep. 24–27, 2024,
"Establishing an Index on Adjacent Network Impact for Extensive Understanding of a Link in Urban Networks", Seung Woo Ham, Eui-Jin Kim, and Dong-Kyu Kim, 103rd Annual Meeting of the Transportation Research Board, Jan. 7–11, 2024, Accepted as Lectern Session
"An Attention-based Multi-modal Fusion Model for Estimating Lane-Level Missing Traffic Volume in Urban Networks", Jin Hong Min, Seung Woo Ham, and Dong-Kyu Kim, 103rd Annual Meeting of the Transportation Research Board, Jan. 7–11, 2024, Accepted as Lectern Session
"Real-time Estimation of Origin-Destination Matrices Using a Deep Neural Network for Digital Twins", Donggyu Min, Hyunsoo Yun, Seung Woo Ham, and Dong-Kyu Kim, 103rd Annual Meeting of the Transportation Research Board, Jan. 7-11, 2024
"Prediction of Severity on Two-Wheeler Accident Using Cost-Sensitive Learning", Junhee Choi, Seung Woo Ham*, Minhee Kang, Jaein Song, and Kee-Yeon Hwang, Traffic Safety Research (KCI Candidate), Under 2nd Review
"Dynamic O-D matrix estimation using Deep Recurrent Q-Learning", Donggyu Min, Seung Woo Ham, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 16-18, 2023
"Dynamic Traffic Assignment Using Noniterative Stochastic Route Choice Model", Hyunsoo Yun, Seung Woo Ham, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 16-18, 2023
"Development of an algorithm to alleviate urban traffic congestion through switching autonomous vehicle routes", Seung-Hyun Lee, Hyunsoo Yun, Seung Woo Ham, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 16-18, 2023
"Attention-based Multimodal Fusion Model for Estimating Lane-level Missing Traffic Volume in Urban Network", Jin Hong Min, Seung Woo Ham, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 16-18, 2023
“Design and Utilization of Speed Reduction Indices for Traffic Congestion Analysis”, Seung Woo Ham, and Dong-Kyu Kim, The Conference of Korean Society of Transportation & Korea Planning Association, Oct. 11-12, 2023
"Rethinking Traffic Speed Prediction with Traffic Flow-Aware Graph Attention Networks", Seung Woo Ham and Dong-Kyu Kim, 2023 IEEE 26th international conference on intelligent transportation systems (ITSC), Sep. 24-28, 2023, Accepted as Oral Presentation
"Real-time Identification of the Critical Link in the Urban Road Network and Its Application", Seung Woo Ham and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Apr. 20-21, 2023
"Calculation of major links on urban roads", Seung Woo Ham and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 3–4, 2022
"Road Network Analysis Using Graph Attention Mechanism", Seung Woo Ham and Dong-Kyu Kim, The 40th Anniversary International Conference of Korean Society of Transportation (KST) & 10th International Public Transportation Forum (IPTF), Sep. 28-30, 2022
"Speed Prediction and Road Network Analysis using Graph Attention Network", Seung Woo Ham and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Jun. 15-18, 2022
"Deep Multimodal Learning for Traffic Speed Estimation Combining Dedicated Short-range Communication and Vehicle Detection System Data", Jin Hong Min, Seung Woo Ham, Dong-Kyu Kim, and Eun Hak Lee, 101st Annual Meeting of the Transportation Research Board, Jan. 9–13, 2022
"Establishing Micro-Mobility Demand Aggregation Methodology Considering Interregional Relationship", Seung Woo Ham, Jung-Hoon Cho, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Apr. 22-23, 2021
"Travel pattern regularity of shared micro-mobility passengers using spatio-temporal clustering", Seong-Yeon Park, Seung Woo Ham, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Apr. 22–23, 2021
"A Reinforcement Learning Approach for Rebalancing Electric Scooter Sharing Service", Hyunsoo Yun, Seung Woo Ham, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Apr. 22–23, 2021
"Enhancing the Accuracy of Peak Hourly Demand in Bike-Sharing Systems using a Graph Convolutional Network with Public Transit Usage Data", Jung Hoon Cho, Seung Woo Ham, and Dong-Kyu Kim, 100th Annual Meeting of the Transportation Research Board, Jan. 21–29, 2021
"A Comparison study on Micro-mobility Usage Pattern: focusing on Bike-sharing service and E-Scooter share service in Seoul, Korea", Jung-Hoon Cho, Seung Woo Ham, and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 19-20, 2020
"Investigating the Influential Factors for Practical Application of Multiclass Vehicle Detection for Images from Unmanned Aerial Vehicle Using a Deep Learning Model", Seung Woo Ham, Ho-Chul Park, Eui-Jin Kim, Dong-Kyu Kim, and Seung-Young Kho, 99th Annual Meeting of the Transportation Research Board, Jan. 12-16, 2020
"Predicting Crash Probability Based on Panel Data of Traffic Violation", Seung Woo Ham, Yang-Jun Joo, and Dong-Kyu Kim, The 81st Conference on Korean Society of Transportation, Sep. 26-27, 2019
"Effects of Vacant Taxi Ride on Traffic Flow", Seung Woo Ham and Dong-Kyu Kim, The 13th international conference of the Eastern Asia Society for Transportation Studies, Sep. 9-12, 2019
"Tracking Vehicle From Highway Video by Faster R-CNN", Seung Woo Ham, The Conference on the Korea Institute of Intelligent Transport Systems, Nov. 2-3, 2018
"Vehicle Detection in Highway UAV Image Using Faster R-CNN", Seung Woo Ham and Dong-Kyu Kim, The Conference on the Korea Institute of Intelligent Transport Systems, Apr. 19-21, 2018
Certificates and Memberships
Certificates
Certified Investment Manager
Issued By Korea Financial Investment Association
ID: 22-009175
Big Data Analysis Engineer
Issued By Korea Data Agency
ID: BAE-003000377
Information Processing Engineer
Issued By Human Resources Development Service of Korea
ID: 21203010731E
Advanced-Data Analytics Semi-Professional
Issued By Korea Data Agency
ID: ADsP-029002152
Data Architecture Semi-Professional
Issued By Korea Data Agency
ID: DAsP-046000203
SQL Developer
Issued By Korea Data Agency
ID: SQLD-041002796
Memberships
Trained as an investment decision-maker
Sep. 2022–Present
Participated in Seoul National University Student Venture Network
Mar. 2023– Jul. 2023
Member of Knowledge Distillation and Reinforcement Learning Cell
Mar. 2021 - Feb. 2023
SNU Value
Value Investment Style Corporate Analysis and Investment Decision-making
Mar. 2021 - Aug. 2022
Academic Services
Reviewer, Journal of Transportation Engineering
Reviewer, IEEE Transactions on Intelligent Transportation Systems
Reviewer, Automatica, A Journal of IFAC, the International Federation of Automatic Control
Reviewer, IEEE International Conference on Intelligent Transportation Systems (ITSC)
Reviewer, Transportation Research Record
Reviewer, Annual Meeting of the Transportation Research Board
Session chair, The Conference on the Korea Institute of Intelligent Transport Systems, Nov., 2023.
Reviewer, Traffic Safety Research (KCI Candidate"Development of a Digital Twin Platform Based on Reinforcement Learning and Data Generation for Real-time Evaluation of Network-level Traffic Control Strategies", National Research Foundation. 2022 - Present
Skills and Competencies
