Iris Tien

Brief Biography: 

Iris Tien joined the faculty in the School of Civil and Environmental Engineering at the Georgia Institute of Technology in 2014 after receiving her Ph.D. in Civil Systems Engineering from the University of California, Berkeley, in 2014. She received her M.S. in Civil and Environmental Engineering in 2010, and graduated High Honors with a B.S. in Civil and Environmental Engineering and a Minor in English in 2008 from UC Berkeley.

Tien has a unique interdisciplinary background that encompasses traditional topics of civil engineering, sensing and data analytics, signal processing, machine learning, probabilistic risk assessment, stochastic processes, and decision making under uncertainty. For her research work in developing Bayesian network methods for system modeling and reliability analysis, Tien was awarded the Paper Award from the ASCE Engineering Mechanics Institute Probabilistic Methods Committee in 2013. In addition, Tien has conducted research on wireless sensor networks in the monitoring of structures under seismic hazard as well as in gait analysis for the diagnosis of Parkinson’s disease​.

Tien’s work has been published in journals ranging from engineering to medicine, and is funded by both state and national agencies, including the Center for Information Technology in the Interest of Society, Georgia Department of Transportation, and National Science Foundation. Tien is a recipient of the Regents’ and Chancellor’s Scholarship, University of California Chancellor's Fellowship for Graduate Study, National Science Foundation Graduate Research Fellowship, and National Science Foundation Engineering Innovation Fellowship.

 

Last Name: 
Tien
Office Building: 
Mason
Office #: 
4140A
Affinity Group / Department: 
Structural Engineering, Mechanics and Materials
Construction and Infrastructure Systems Engineering
Type: 
Faculty
Academic Faculty
Education: 
Ph.D., Civil Systems Engineering, University of California, Berkeley, 2014
M.S., Civil and Environmental Engineering, University of California, Berkeley, 2010
B.S., Civil and Environmental Engineering, University of California, Berkeley, 2008
First Name: 
Iris
Photo: 
Publications (Proceedings): 
Johansen, C., and Tien, I., “Modeling Interdependent Critical Infrastructure Systems Using Bayesian Networks,” 12th International Conference on Structural Safety and Reliability, Vienna, Austria, August 6-10, 2017
Saini, A., and Tien, I., “A Simulation-Based Approach for Localized Earthquake Early Warning,” 12th International Conference on Structural Safety and Reliability, Vienna, Austria, August 6-10, 2017
Saini, A., and Tien, I., “Assessing Structural Reliability Under Uncertainty of Changing Environmental Conditions,” 12th International Conference on Structural Safety and Reliability, Vienna, Austria, August 6-10, 2017
Johansen, C., and Tien, I., “Algorithm for Probabilistic Modeling of Interdependent Critical Infrastructure Systems,” Resilience Week, Chicago, IL, August 16-18, 2016
Johansen, C., and Tien, I., “Probabilistic Modeling of Interdependencies between Critical Infrastructure Systems for Resilience,” Engineering Mechanics Institute and Probabilistic Mechanics and Reliability Conference, Nashville, TN, May 22-25, 2016
Saini, A., and Tien, I., “Probabilistic Framework to Assess Maximum Nonlinear Structural Response Based on Sensor Measurements,” Engineering Mechanics Institute and Probabilistic Mechanics and Reliability Conference, Nashville, TN, May 22-25, 2016
Tong, Y., and Tien, I., “Algorithms for Bayesian Network Modeling of Multi-State Infrastructure Flow Systems,” Engineering Mechanics Institute and Probabilistic Mechanics and Reliability Conference, Nashville, TN, May 22-25, 2016
Tien, I., “Methods for Bayesian Network Modeling and Reliability Assessment of Binary and Multi-State Systems,” IFIP WG7.5 Reliability and Optimization of Structural Systems, Pittsburgh, PA, May 18-20, 2016
Tien, I., Musaev, A., Benas, D., Ghadi, A., Goodman, S., and Pu, C., “Detection of Damage and Failure Events of Critical Public Infrastructure Using Social Sensor Big Data,” Proceedings of the International Conference on Internet of Things and Big Data (IoTBD 2016), Rome, Italy, pp. 435-440, April 23-25, 2016
Tien, I., and Der Kiureghian, A., “Compression and Inference Algorithms for Bayesian Network Modeling of Infrastructure Systems,” In T. Haukaas, ed., Proceedings of the 12th International Conference on Applications of Statistics and Probability in Civil Engineering, Vancouver, Canada, July 12-15, 2015
Tien, I., Pozzi, M., and Der Kiureghian, A., “A Dynamic Bayesian Network Framework for Risk Assessment of Systems Based on Sensor Measurements,” In T. Haukaas, ed., Proceedings of the 12th International Conference on Applications of Statistics and Probability in Civil Engineering, Vancouver, Canada, July 12-15, 2015
Tien, I., “Bayesian Network Methods for Modeling and Reliability Assessment of Infrastructure Systems,” ASCE Structural Engineering Institute Structures Congress, Portland, OR, April 23-25, 2015
Tien, I., and Der Kiureghian, A., “A Compression Algorithm for Inference in Bayesian Network Models of Infrastructure Systems,” ASCE Engineering Mechanics Institute Conference, Evanston, IL, August 4-7, 2013, Winner of Paper Award
Tien, I., and Der Kiureghian, A., “Compression Algorithm for Bayesian Network Modeling of Binary Systems,” In G. Deodatis, B. Ellingwood, and D. Frangopol, eds., Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures, New York: CRC Press, pp. 3075-3081, June 2013, Conference Grant Award
Tien, I., Pozzi, M., and Der Kiureghian, A., “Inference on Maximum Structural Response Based on Measured Accelerations Using Dynamic Bayesian Network,” In G. Deodatis, B. Ellingwood, and D. Frangopol, eds. Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures, New York: CRC Press, pp. 2481-2488, June 2013, Conference Grant Award
Tien, I., Glaser, S., and Aminoff, M., “Characterization of Gait Abnormalities in Parkinson’s Disease Using a Wireless Inertial Sensor System,” 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Buenos Aires, Argentina, pp. 3353-3356, August 31-September 4, 2010
Tien, I., and Glaser, S., “Structural Health Monitoring and Evaluation of Human Gait to Assist in the Diagnosis of Parkinson’s Disease,” Proceedings, 7th International Workshop on Structural Health Monitoring, Stanford, CA, September 9-11, 2009
Cranz, G., and Tien, I., “Post-Occupancy Evaluation of the San Francisco Public Library,” Annual Conference of the Association for Applied and Clinical Sociology, San Jose, CA, October 26-28, 2006
Job Title: 
Assistant Professor
Research Interests: 
Probabilistic methods for modeling and reliability assessment of civil infrastructure systems
Stochastic processes
Risk analysis
Structural and infrastructure health monitoring
Sensing and data analytics, signal processing, machine learning
Decision making under uncertainty
Publications (Articles): 
*Saini, A., and Tien, I., “Impacts of Climate Change on the Assessment of Long-Term Structural Reliability,” ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, in press
Tien, I., and Der Kiureghian, A., “Algorithms for Bayesian Network Modeling and Reliability Assessment of Infrastructure Systems,” Reliability Engineering and System Safety, Vol. 156, pp. 134-147, December 2016
Johansen, C., Horney, J., and Tien, I., “Metrics for Evaluating and Improving Community Resilience,” ASCE Journal of Infrastructure Systems, 2016
Tien, I., Pozzi, M., and Der Kiureghian, A., “Probabilistic Framework for Assessing Maximum Structural Response Based on Sensor Measurements,” Structural Safety, Vol. 61, pp. 43-56, July 2016
Tien, I., and Aminoff, M., “Using a Wireless Inertial Sensor System to Characterize Gait Abnormalities in Parkinson’s Disease,” Movement Disorders, Vol. 27, Issue Supplement S1, pp. S142, June 2012
Tien, I., Glaser, S., Bajcsy, R., Goodin, D., and Aminoff, M., “Results of Using a Wireless Inertial Measuring System to Quantify Gait Motions in Control Subjects,” IEEE Transactions on Information Technology in Biomedicine, Vol. 14, No. 4, pp. 904-915, July 2010
Phone: 
404.894.8269
2017 Smart Cities Fellow, Serve-Learn-Sustain, Georgia Institute of Technology
2016 Bill Schutz Junior Faculty Teaching Award, School of Civil and Environmental Engineering, Georgia Institute of Technology
2016 Paul A. Duke GIFT Action Plan Achievement Mentor Award
2016 Invited Panelist, Government-University-Industry Research Roundtable (GUIRR) on Critical Infrastructure Security, National Academy of Engineering
2015 Selected Participant, National Academies Arab-American Frontiers of Science, Engineering, and Medicine Symposium: Frontiers of Sensor Science, National Academies and KAUST
2015 Invited Panelist, Food-Energy-Water Nexus Workshop, NSF and AIChE
2015 Invited Participant, Workshop on Life-Cycle Performance of Civil Structure and Infrastructure Systems, Structural Engineering Institute, ASCE Headquarters
2015 Selected Participant, National Science Foundation Early Career Investigators Workshop on Cyber-Physical Systems in Smart Cities
2013 Paper Award, Probabilistic Methods Committee, ASCE Engineering Mechanics Institute
2011 National Science Foundation Engineering Innovation Fellowship
2010 National Science Foundation Graduate Research Fellowship
2008 University of California Chancellor’s Fellowship for Graduate Study
2004 University of California Regents’ and Chancellor’s Scholarship
Interdisciplinary Research Area(s): 
Resilient Infrastructure Systems
Smart Cities