Journal (International)
- Byunghyun Kim and Soojin Cho*, "Deep Semi-Supervised Structural Anomaly Detection," Automation in Construction, In Preparation.
- Muhammad Tanveer, Jeongmin Lee, and Soojin Cho*, "Comparative Study on Lightweight Semantic Segmentation Models for Concrete Crack Detection," Smart Structures and Systems, In Preparation.
- Sukkyung Bae, Byunghyun Kim, and Soojin Cho*, "Concrete Pavement Crack Detection Using Cascade Mask R-CNN and Dilation-Erosion Processing Technique," International Journal of Pavement Engineering, In Preparation.
- Seran Jung, Sukkyung Bae, Byunghyun Kim, and Soojin Cho*, "Improved Damage Detection Framework using Super-resolution and Damage Detection Deep Learning Models," Computer-aided Civil and Infrastructure Engineering, In Preparation.
- Ali Turab Asad, Byunghyun Kim, Soojin Cho, and Sung-Han Sim*, "Prediction model for long-term bridge bearing displacement using artificial neural network and Bayesian optimization," Engineering Structures, Submitted.
- Woldeamanuel Minwuye Mesfin, Taehoon Kim, Soojin Cho, and Hyeong-Ki Kim*, "Estimation of concrete strength using thermography integrated with deep-learning-based image segmentation: Case studies and economic analysis," Expert Systems with Applications, Submitted.
- Byunghyun Kim, Junhwa Lee, Sung-Han Sim, and Soojin Cho*, "Remote horizontal displacement measurement system for in-situ bridge bearing monitoring using CCTVs and computer vision algorithm," Smart Structures and Systems, Submitted.
- Sahyun Lee, Sang-Gyun Gil, Soojin Cho, Sung-Woo Shin, and Sung-Han Sim*, "Wireless Safety Monitoring of Water Pipeline Construction Site using LoRa Communication," Smart Structures and Systems, Accepted.
- Woldeamanuel Minwuye Mesfin, Soojin Cho, Jeongmin Lee, Hyeong-Ki Kim*, and Taehoon Kim, "Deep Learning-Based Segmentation of Fresh or Young Concrete Sections From Images of Construction Sites," Materials, 14(21), 6311, 2021.10 (SCIE, IF: 3.748 in 2021, JCR Ranking = 28/69, in Physics, Condensed Matter)
- Byunghyun Kim and Soojin Cho*, "Automated Multiple Concrete Damage Detection Using Instance Segmentation Deep Learning Model," Applied Sciences, Vol. 9, No. 20, pp. 4444(1-14), 2020. 10. (SCIE, IF: 2.217 in 2018, JCR Ranking = 67/148, in Physics, Applied)
- Keunyoung Jang, Yun-Kyu An*, Byunghyun Kim, and Soojin Cho, "Automated crack evaluation of a high‐rise bridge pier using a ring‐type climbing robot," Computer-aided Civil and Infrastructure Engineering, Early View, 2020. 03 (ISI Journal Citation Reports © Ranking: 2018: 1/63 (Construction & Building Technology) 1/132 (Engineering, Civil) 1/37 (Transportation Science & Technology))
- Byunghyun Kim and Soojin Cho*, "Hyperspectral Super-resolution Technique using Histogram Matching and Endmember Optimization," Applied Sciences, Vol. 9, No. 20, pp. 4444(1-14), 2019. 10. (SCIE, IF: 2.217 in 2018, JCR Ranking = 67/148, in Physics, Applied)
- Byunghyun Kim and Soojin Cho*, "Image-based Concrete Crack Assessment using Mask and Region-based Convolutional Neural Network," Structural Control and Health Monitoring, Vol. 26, No. 8, e2381(1-15). 2019.08. (SCIE, IF: 3.740 in 2018, JCR Ranking = 13/132 in Engineering, Civil) Keyword: Concrete, Crack, Deep Learning, Mask R-CNN.
- Jaebeom Lee, Young-Joo Lee*, Sung-Han Sim and Soojin Cho, "A New Probabilistic Framework for Structural System Fragility and Sensitivity Analysis of Concrete Gravity Dams," KSCE Journal of Civil Engineering, Vol. 23, No. 8, pp. 3592–3605. 2019.08. (SCIE, IF: 1.428 in 2018, JCR Ranking = 81/132 in Engineering, Civil)
- Seunghoo Jeong, Junhwa Lee, Soojin Cho*, and Sung-Han Sim*, "Integrated Cable Vibration Control System using Arduino," Smart Structures and Systems, Vol. 23, No. 6, pp. 695-702. 2019.06. (SCIE, IF: 3.622 in 2018, JCR Ranking = 14/132 in Engineering, Civil)
- Junhwa Lee, Eunjin Kim, Seongwoo Gwon, Soojin Cho, Sung-Han Sim*, "Uniaxial Static Stress Estimation for Concrete Structures using Digital Image Correlation," Sensors, 2019(19), 319(1-10). 2019.01. (SCIE, IF: 3.031 in 2018, JCR Ranking = 15/61 in Instruments & Instrumentation)
- Soojin Cho, Seunghee Park, Gichun Cha, and Taekeun Oh*, "Development of Image Processing for Crack Detection on Concrete tructures through Terrestrial Laser Scanning Associated with the Octree Structure," Applied Sciences, Vol. 8, pp. 2373(1-19). 2018.11. (SCIE, IF: 2.217 in 2018, JCR Ranking = 67/148, in Physics, Applied)
- Byunghyun Kim and Soojin Cho*, "Automated Vision-based Detection of Cracks on Concrete Structures Using a Deep Learning Technique, " Sensors, Vol. 18, pp. 3452(1-18). 2018. 10. (SCIE, IF: 3.031 in 2018, JCR Ranking = 15/61 in Instruments & Instrumentation)
- Byunghyun Kim and Soojin Cho*, "Efflorescence Assessment using Hyperspectral Imaging for Concrete Structures," Smart Structures and Systems, Vol. 22, No. 2, pp. 209-221. 2018. 08. (SCIE, IF: 3.622 in 2018, JCR Ranking = 14/132 in Engineering, Civil)
- Soojin Cho, Junhwa Lee, and Sung-Han Sim*, "Comparative Study on Displacement Measurement Sensors for High-speed Railroad Bridge," Smart Structures and Systems, Vol. 21, No. 5, pp. 637-652. 2018. 05. (SCIE, IF: 3.622 in 2018, JCR Ranking = 14/132 in Engineering, Civil)
- Junhwa Lee, Kyoung-Chan Lee, Soojin Cho*, and Sung-Han Sim*, "Computer Vision-Based Structural Displacement Measurement Robust to Light-Induced Image Degradation for In-Service Bridges," Sensors, Vol. 17, pp. 2317. 2017. 10. (SCIE, IF: 2.475 in 2017, JCR Ranking = 16/61 in Instruments & Instrumentation)
- Hyunjun Kim, Junhwa Lee, Eunjong Ahn, Soojin Cho, Myoungsu Shin, and Sung-Han Sim*, "Concrete Crack Identification Using a UAV Incorporating Hybrid Image Processing," Sensors, Vol. 17, pp. 2052. 2017. 09. (SCIE, IF: 2.475 in 2017, JCR Ranking = 16/61 in Instruments & Instrumentation)
- Hyunjun Kim, Eunjong Ahn, Myoungsu Shin, Soojin Cho, and Sung-Han Sim*, “Comparative Analysis of Image Binarization Methods for Crack Identification in Concrete Structures,” Cement and Concrete Research, Vol. 99, pp. 53-61. 2017. 09. (SCI, IF: 5.430 in 2016, JCR Ranking = 2/62 in Construction & Building Technology)
- Hyunjun Kim, Soojin Cho*, and Sung-Han Sim, “Data Fusion of Acceleration and Angular Velocity for Improved FE Model Updating,” Measurement, Vol. 91, pp. 239–250. 2016. 09. (SCIE, IF: 2.359 in 2016, JCR Ranking =19/85 in Engineering, Multidisciplinary)
- Soojin Cho, Jong-Woong Park, Rajendra P. Palanisamy, and Sung-Han Sim*, “Reference-free Displacement Estimation of Bridges Using Kalman filter-based Multimetric Data Fusion,” Journal of Sensors, Vol. 2016, Article ID 3791856, 9 pages. 2016. 08. (SCIE, IF: 1.704 in 2016, JCR Ranking = 126/255 in Engineering, Electrical & Electronic)
- Young-Joo Lee and Soojin Cho*, “SHM-based Probabilistic Fatigue Life Prediction for Bridges Based on FE Model Updating,” Sensors, Vol. 16, No. 3, 317. 2016. 03. (SCI, IF: 2.677 in 2016, JCR Ranking = 10/58 in Instruments & Instrumentation)
- Jeong-Tae Kim, Sung-Han Sim, Soojin Cho, Chung-Bang Yun, and Jiyoung Min*, “Recent R&D Activities on Structural Health Monitoring in Korea,” Structural Monitoring and Maintenance, Vol. 3, No. 1, pp. 91-114. 2016. 03.
- Hyungchul Yoon, Reza Shiftehfar, Soojin Cho*, Billie F. Spencer, Jr., Mark Nelson, Gul Agha, “Victim Localization and Assessment System for Emergency Responders,” Journal of Computing in Civil Engineering-ASCE, Vol. 30, No. 2, 04015011. 2016. 02. (SCI, IF: 1.268 in 2014, JCR Ranking = 46/124 in Engineering, Civil)
- Billie F. Spencer, Jr.*, Hongki Jo, Kirill A. Mechitov, Jian Li, Sung-Han Sim, Robin E. Kim, Soojin Cho, Lauren E. Linderman, Parya Moinzadeh, Ryan K. Giles, and Gul Agha, “Recent Advances in Wireless Smart Sensors for Multi-scale Monitoring and Control of Civil Infrastructure,” Journal of Civil Structural Health Monitoring, Vol. 6, No. 1, pp. 17-41. 2016. 02. (Listed in Scopus)
- Yufei Liu, Soojin Cho, Billie F. Spencer, Jr., and Jiansheng Fan*, “Concrete Crack Assessment Using Digital Image Processing and 3D Scene Reconstruction,” Journal of Computing in Civil Engineering-ASCE, Vol. 30, No. 1, 04014124. 2016. 01. (SCI, IF: 1.268 in 2014, JCR Ranking = 46/124 in Engineering, Civil)
- Soojin Cho* and Billie F. Spencer, Jr., “Sensor Attitude Correction of Wireless Sensor Network for Acceleration-based Monitoring of Civil Structures,” Computer-Aided Civil and Infrastructure Engineering, Vol. 30, No. 11, pp. 859-871. 2015. 11. (SCIE, IF: 4.925 in 2014, JCR Ranking = 1/124 in Engineering, Civil)
- Fernando Moreu*, Hongki Jo, Jian Li, Robin E. Kim, Soojin Cho, Andrew Kimmle, Sandro Scola, Hoat Le, Billie F. Spencer, Jr., and James M. LaFave, “Dynamic Assessment of Timber Railroad Bridges Using Transverse Displacements,” Journal of Bridge Engineering-ASCE, Vol. 20, No. 10, 04014114, 2015. 10. (SCIE, IF: 1.065 in 2014, JCR Ranking = 54/124 in Engineering, Civil)
- Seung-seop Jin, Soojin Cho, and Hyung-Jo Jung*, “Adaptive Reference Updating for Vibration-based Structural Health Monitoring under Varying Environmental Condition,” Computers and Structures, Vol. 158, pp. 211-224. 2015. 10. (SCI, IF: 2.134 in 2014, JCR Ranking = 18/124 in Engineering, Civil)
- Soojin Cho, Jongwoong Park, and Sung-Han Sim*, “Decentralized System Identification using Stochastic Subspace Identification for Wireless Sensor Networks,” Sensors, Vol. 15, No. 4, pp. 8131-8145. 2015. 04. (SCIE, IF: 2.245 in 2014, JCR Ranking = 10/56 in Instruments & Instrumentation)
- Soojin Cho, Chung-Bang Yun, and Sung-Han Sim*, “Displacement Estimation of Bridge Structures Using Data Fusion of Acceleration and Strain Measurement Incorporating Finite Element Model,” Smart Structures and Systems, Vol. 15, No. 3, pp. 645-663. 2015. 03. (SCIE, IF: 1.368 in 2014, JCR Ranking = 37/124 in Engineering, Civil)
- Rajendra P. Palanisamy, Soojin Cho*, Hyunjun Kim, and Sung-Han Sim, “Experimental Validation of Kalman Filter-based Strain Estimation in Structures Subjected to Non-Zero Mean Input,” Smart Structures and Systems, Vol. 15, No. 2, pp. 489-503. 2015. 02. (SCIE, IF: 1.368 in 2014, JCR Ranking = 37/124 in Engineering, Civil)
- Soojin Cho*, Ryan K. Giles, and Billie F. Spencer, Jr. “System Identification of Historic Swing Truss Bridge Using a Wireless Sensor Network Employing Orientation Correction,” Structural Control and Health Monitoring, Vol. 22, No. 2, pp. 255-272. 2015. 02. (SCIE, IF: 2.133 in 2014, JCR Ranking = 19/124 in Engineering, Civil)
- Soojin Cho, Sung-Han Sim*, Jong-woong Park, and Junhwa Lee, “Extension of Indirect Displacement Estimation Method Using Acceleration and Strain to Various Types of Beam Structures,” Smart Structures and Systems, Vol. 14, No. 4, pp. 699-718. 2014. 10. (SCIE, IF: 1.368, JCR Ranking = 37/124 in Engineering, Civil)
- Yufei Liu, Soojin Cho*, Billie F. Spencer, Jr., and Jiansheng Fan, “Automated Assessment of Cracks on Concrete Surfaces Using Adaptive Digital Image Processing,” Smart Structures and Systems, Vol. 14, No. 4, pp. 719-741. 2014. 10. (SCIE, IF: 1.368, JCR Ranking = 37/124 in Engineering, Civil)
- Seung-seop Jin, Soojin Cho*, Hyung-Jo Jung, Jong-Jae Lee, and Chung-Bang Yun, “A New Multi-objective Approach to Finite Element Model Updating,” Journal of Sound and Vibration, Vol. 333, No. 11, pp. 2323-2338. 2014. 05. (SCI, IF: 1.813 in 2013, JCR Ranking = 25/130 in Engineering, Mechanical)
- Chung-Bang Yun*, Soojin Cho, Hyun-Jun Park, Jiyoung Min, and Jongwoong Park, “Smart Wireless Sensing and Assessment for Civil Infrastructure,” Structure and Infrastructure Engineering, Vol. 10, No. 4, pp. 534-550. 2014. 04. (SCIE, IF: 1.454, JCR Ranking = 34/124 in Engineering, Civil)
- Sung-Han Sim, Jian Li, Hongki Jo, Jong-Woong Park, Soojin Cho, Billie F. Spencer, Jr., and Hyung-Jo Jung*, “A Wireless Smart Sensor Network for Automated Monitoring of Cable Tension," Smart Materials and Structures, Vol. 23, No. 2, 025006 (10pp). 2014. 02. (SCI, IF: 2.502, JCR Ranking = 8/56 in Instruments & Instrumentation)
- Soojin Cho*, Jinsuk Yim, Sung Woo Shin, Hyung-Jo Jung, Chung-Bang Yun, and Ming L. Wang, “Comparative Field Study of Cable Tension Measurement for Cable-stayed Bridge,” Journal of Bridge Engineering-ASCE, Vol. 18, No. 8, pp. 748-757. 2013. 08. (SCIE, IF: 0.927, JCR Ranking = 66/124 in Engineering, Civil)
- Jin-Hak Yi*, Soojin Cho, Chung-Bang Yun, “Two-step Indirect Static Deflection Estimation of Bridges Based on Ambient Acceleration Measurements,” Experimental Techniques, Vol. 37, No. 3, pp. 33-45. 2013. 05-06. (SCIE, IF: 0.583, JCR Ranking = 93/126 in Engineering, Mechanical)
- Truong Thanh Chung, Soojin Cho, Chung-Bang Yun*, and Hoon Sohn, “Finite Element Model Updating of Canton Tower Using Regularization Technique,” Smart Structures and Systems, Vol. 10, No. 4-5, pp. 459-470. 2012. 10. (SCIE, IF: 1.430, JCR Ranking = 24/122 in Engineering, Civil)
- Soojin Cho, Hongki Jo, Shin Ae Jang, Jongwoong Park, Hyung-Jo Jung*, Chung-Bang Yun, Billie F. Spencer Jr., and Ju-Won Seo, “Structural Health Monitoring of a Cable-stayed Bridge Using Wireless Smart Sensor Technology: Data Analyses,” Smart Structures and Systems, Vol. 6, No. 5-6, pp. 461-480, 2010. 06. (SCIE, IF = 1.316, JCR Ranking = 22/115 in Engineering, Civil)
- Shin Ae Jang*, Hongki Jo, Soojin Cho, Kirill Mechitov, Jennifer A. Rice, Sung-Han Sim, Hyung-Jo Jung, Chung-Bang Yun, Billie F. Spencer Jr., and Gul Agha, “Structural Health Monitoring of a Cable-stayed Bridge Using Smart Sensor Technology: Deployment and Evaluation,” Smart Structures and Systems, Vol. 6, No. 5-6, pp. 439-459, 2010. 06. (SCIE, IF = 1.316, JCR Ranking = 22/115 in Engineering, Civil)
- Soojin Cho*, Jerome P. Lynch, Jong-Jae Lee, and Chung-Bang Yun, “Development of an Automated Wireless Tension Force Estimation System for Cable-stayed Bridges,” Journal of Intelligent Material Systems and Structures, Vol. 21, No. 1, pp. 361-375, 2010. 02. (SCIE, IF = 1.604, JCR Ranking = 81/225 in Materials Science, Multidisciplinary)
- Soojin Cho, Chung-Bang Yun*, Jerome P. Lynch, Andrew T. Zimmerman, Billie F. Spencer Jr. and Tomonori Nagayama, "Smart Wireless Sensor Technology for Structural Health Monitoring of Civil Structures," International Journal of Steel Structures, Vol.8, No. 4, pp. 267-275, 2008. 12.
- Jong Jae Lee*, Yoshio Fukuda, Masanobu Shinozuka, Soojin Cho, and Chung-Bang Yun, "Development and Application of a Vision-based Displacement Measurement System for Structural Health Monitoring of Civil Structures", Smart Structures and Systems, Vol. 3, No. 3, pp. 373-384, 2007. 07. (SCIE, IF = 0.478, JCR Ranking = 49/88 in Engineering, Civil)
- Jin-Hak Yi*, Soojin Cho, Ki-Young Koo, Chung-Bang Yun, Chang-Geun Lee, and Won-Tae Lee, "Structural Performance Evaluation of a Steel-Plate Girder Bridge Using Ambient Acceleration Measurements," Smart Structures and Systems, Vol. 3, No. 3, pp. 281-298, 2007. 07. (SCIE, IF = 0.478, JCR Ranking = 49/88 in Engineering, Civil)
- Jong Jae Lee*, Soojin Cho, Masanobu Shinozuka, Chung-Bang Yun, Chang-Geun Lee, and Won-Tae Lee, "Evaluation of Bridge Load Carrying Capacity Based On Dynamic Displacement Measurement Using Real-time Image Processing Techniques," International Journal of Steel Structures, Vol.6, pp.377-385, 2006. 12.
Journal (Korean)
- 나용수, 이노진, 조수진*, "프리캐스트 콘크리트를 이용한 신축이음장치의 한강상 교량에서의 시공성 평가," 한국산학기술학회지, 제 23권, 제 3호, pp. 449-457, 2022년 3월.
- 김병현, 조수진*, 채홍제, 김홍기, 강종하, "영상장비와 딥러닝을 이용한 고속도로 터널 균열 탐지 시스템 개발," 한국구조물진단유지관리공학회논문집, 제 25권, 제 4호, pp. 65-74, 2021년 8월.
- 김병현, 조수진*, "통합 이미지 처리 기술을 이용한 콘크리트 교량 균열 탐지 및 매핑," 한국안전학회지, 제 36권, 제 1호, pp 18-25, 2021년 2월.
- 임준성*, 유세복, 조수진, 박병호, 김양수, 장진웅, "도시 시설물 안전을 위한 지능형 무선 센싱 시스템 구축," 한국정보기술학회 논문지, 제 18권, 제 1호, pp.143-156, 2020년 1월.
- 김병현, 김건순, 진수민, 조수진*, "영상기반 콘크리트 균열 탐지 딥러닝 모델의 유형별 성능 비교," 한국안전학회지, 제 34권, 제 6호, pp. 50-57, 2019년 12월.
- 이예인, 김병현, 조수진*, "딥러닝을 이용한 영상 기반의 콘크리트 구조물 박락 탐지," 한국콘크리트학회지, 제 30권, 제 1호, pp. 91-99, 2018년 2월.
- 김병현, 김대명, 조수진*. "초분광 카메라를 이용한 콘크리트 백화 평가에 관한 연구," 한국안전학회지, 제 32권, 제 6호, pp. 98-103, 2017년 12월.
- 조수진, 신성우*, 심성한, 임정열, “홍수 시 콘크리트 중력식댐의 위험도 분석을 위한 파괴확률 산정,” 한국안전학회지, 제 31권, 제 6호, pp. 58-66, 2016년 12월.
- 김은진, 조수진*, 심성한, “구조물 건전성 모니터링을 위한 스마트 센서 관련 최근 연구동향,” 한국구조물진단유지관리공학회 논문집, 제 19권, 제 3호, pp. 10-21, 2015년 5월.
- 김현준, 조수진*, 심성한, “가속도 및 각속도 데이터 융합 기반 유한요소모델 개선,” 한국구조물진단유지관리공학회 논문집, 제 19권, 제 2호, pp. 60-67, 2015년 3월.
- 이준화, 조수진*, 심성한, “임의의 위치에서 사용 가능한 영상 기반 변위 계측 시스템,” 한국구조물진단유지관리공학회 논문집, 제 18 권, 제 6호, pp. 123-130, 2014년 11월.
- 조수진, 심성한*, 김은성, “영상 기반 변위 계측장치의 현장 적용 성능 평가,” 한국산학기술학회 논문집, 제 15권, 제 9호, pp. 5854-5860. 2014년 9월.
- 조수진, 윤정방, 심성한*, “진동법을 이용한 사장교의 시공 중 장력 평가,” 한국안전학회지, 제 29권, 제 2호, pp. 38-44. 2014년 4월.
- 조수진, 이진학*, 이창근, 윤정방, "상시진동계측에 의한 교량의 공용내하력 평가," 대한토목학회논문집, 제 27권, 제 1A호, pp. 79-89, 2007년 1월.
Conference (Selected)
- Soojin Cho, Chung-Bang Yun, and Sung-Han Sim, “Reference-free Deflection Measurement of General-shape Bridges using Data Fusion,” Joint Conference of 6AESE/11ANCRiSST, University of Illinois at Urbana-Champaign, IL, USA, August 1-2, 2015.
- Soojin Cho, Ryan K. Giles, Billie F. Spencer, Jr. and Sung-Han Sim, “Structural Health Monitoring on a Historic Truss Bridge Using Wireless Sensors,” International Conference on Computational & Experimental Engineering and Sciences, Changwon, Korea, June 12-17, 2014
- Soojin Cho and Chung-Bang Yun, “Design of Structural Health Monitoring System Using Wireless Smart Sensors by Axiomatic Design Principles,” The 1st International Workshop on Design for Civil and Environmental Engineering, Daejeon, Korea, April 1, 2011
- S. Cho, C-B. Yun, and J. P. Lynch, “Smart Wireless Tension Force Monitoring System for Stay Cables” The 5th International Conference on Bridge Maintenance, Safety, and Management, Philadelphia, PA, USA, July 11-15, 2010.
- S. Cho, J. Park, H-J. Jung, C-B. Yun, S. Jang, H. Jo, B. F. Spencer, Jr., T. Nagayama, and J. W. Seo, “Structural Health Monitoring of a Cable-stayed Bridge Using Acceleration Data via Wireless Smart Sensor Network” The 5th International Conference on Bridge Maintenance, Safety, and Management, Philadelphia, PA, USA, July 11-15, 2010.
- Soojin Cho, Shin Ae Jang, Hongki Jo, Jongwoong Park, Hyung-Jo Jung, Chung-Bang Yun, Billie F. Spencer Jr., Tomonori Nagayama, and Juwon Seo, “Cable-stayed Bridge Test-bed for Long-term Structural Health Monitoring Using Smart Wireless Sensor Network,” The 1st International Conference on Computational Design in Engineering, Seoul, Korea, November 3-6, 2009.
- Soojin Cho, J. P. Lynch and Chung-Bang Yun, “Development and Application of a Low-cost Automated Wireless Tension Estimation System for Cable Structures,” The 10th International Conference on Structural Safety and Reliability, Osaka, Japan, September 12-15, 2009.
- Soojin Cho, Jin-Hak Yi, and Chung-Bang Yun, “Two-step Approach for Finite Element Model Updating of Bridge Using Ambient Vibration Data,” International Conference on Computational & Experimental Engineering and Sciences, Phuket, Thailand, April 8-13, 2009