Curriculum Vitae

• 2019: Visiting Researcher, Johns Hopkins University, Baltimore, MD
• since 2017: Ph.D. student at the Engineering Risk Analysis Group, Technische Universität München
• since 2016: Research Assistant at the Engineering Risk Analysis Group, Technische Universität München
• 2014 - 2016: M.Sc. in Civil Engineering, Technische Universität München
• 2010 - 2013: B.Sc. in Civil Engineering, Technische Universität München

Research

• Reliability analysis of aged hydraulic structures
• Advanced sampling methods for reliability analysis
• User-oriented random field representation methods for spatially varying material properties
• Correlation models for spatially variable concrete properties using real data
• Bayesian updating of engineering models with spatially variable properties​

Supervised theses/projects

• Master's thesis: Dana Khdairat (2021) - A hierarchical approach to Gaussian process regression with application to engineering datasets
• Advanced Research Internship: Maximilian Stupp (2020) - Bayesian parameter study on spatial correlation models using data from a tamped concrete wall
• Master's thesis: Alexander Haynack (2020) - Datenmanagement und Datenauswertung auf europäischer Ebene zum Carbonatisierungswiderstand von Beton
• Study project: Ilona Holneicher (2019) - How does the risk estimation change if sub-scenarios are considered? Dike breach failure scenarios and damage potential at Neuburg on the Danube
• Master's thesis: Melina Rohne (2019) - Visualization of random fields and their influence on modeling uncertainties in reliability analysis
• Bachelor's thesis: Matthias Rosa (2019) - Analysis of different correlation models for spatially variable concrete properties in massive hydraulic structures
• Master's thesis: Emily Schran (2018) - Sequential importance sampling with a flexible mixture model
• Bachelor's thesis: Michael Maier (2017) - The effects of stochastic loads on a structural model

Publications

• Sebastian Geyer, Iason Papaioannou, Lori Graham-Brady, Daniel Straub (2022). The spatial averaging method for non-homogeneous random fields with application to reliability analysis. Engineering Structures, 253, 113761
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2021). Bayesian analysis of hierarchical random fields for material modeling. Probabilistic Engineering Mechanics, 66, 103167
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2020). Characteristic values of spatially varying material properties in existing structures. Proceedings of the Seventh International Symposium on Life-Cycle Civil Engineering (IALCCE). Shanghai, China
• Sebastian Geyer, Iason Papaioannou, Claus Kunz, Daniel Straub (2020). Reliability assessment of large hydraulic structures with spatially distributed measurements. Structure and Infrastructure Engineering, 16(4), 599-612
• Charlotte Thiel, Alexander Haynack, Sebastian Geyer, Alexander Braun, Christoph Gehlen (2020). CarboDB – Open access database for concrete carbonation. Proceedings of the third RILEM Spring Convention and Conference (RSCC). Guimarães, Portugal.
• Iason Papaioannou, Sebastian Geyer, Daniel Straub (2019). Improved cross entropy-based importance sampling with a flexible mixture model. Reliability Engineering and System Safety, 191, 106564
• Iason Papaioannou, Sebastian Geyer, Daniel Straub (2019). Bayesian updating of foundation reliability with spatially variable measurements: a spatial averaging approach. Proceedings of the 7th International Symposium on Geotechnical Safety and Risk (ISGSR). Taipei, Taiwan
• Sebastian Geyer, Iason Papaioannou, Claus Kunz, Daniel Straub (2019). Bayesian reliability assessment with spatially variable measurements: The spatial averaging approach. Proceedings of the 13th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP13). Seoul, South Korea
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2019). Cross entropy-based importance sampling using Gaussian densities revisited. Structural Safety, 76, 15-27
• Sebastian Geyer, Iason Papaioannou, Daniel Straub, Claus Kunz (2018). Reliability assessment of large hydraulic structures with spatially distributed measurements. Proceedings of the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE). Ghent, Belgium
• Arslan Tahir, Claus Kunz, Sebastian Geyer, Daniel Straub (2018). Investigation into structural reliability of reinforced concrete hydraulic structures using different probabilistic methods. Proceedings of the International Federation for Structural Concrete 5th International fib Congress, Melbourne, Australia
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2017). On the efficiency of cross entropy-based importance sampling with Gaussian densities. Proceedings of the 15th International Probabilistic Workshop & 10th Dresdner Probabilistik Workshop. Dresden, Germany

Talks

• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2021). Bayes’sche Methodik für die räumliche Modellierung von Materialeigenschaften. DVM-Workshop Zuverlässigkeit und Probabilistik. Virtual event
• Sebastian Geyer, Iason Papaioannou, Claus Kunz, Daniel Straub (2021). Hierarchical Bayesian modeling of random property fields with spatially distributed data. Engineering Mechanics Institute Conference and Probabilistic Mechanics & Reliability Conference. Virtual event
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2020). Problem-specific identification of reliability methods. 2nd Workshop: Computational challenges in the reliability assessment of engineering structures, Delft, The Netherlands
• Sebastian Geyer, Iason Papaioannou, Claus Kunz, Daniel Straub (2019). Reliability analysis of hydraulic structures with the spatial averaging approach. 17th International Probabilistic Workshop, Edinburgh, Scotland
• Sebastian Geyer, Iason Papaioannou, Claus Kunz, Daniel Straub (2018). Reliability assessment of large hydraulic structures including random fields and measurement data. 3rd International Conference on Vulnerability and Risk Analysis and Management (ICVRAM); 7th International Symposium on Uncertainty Modelling and Analysis (ISUMA); 4th International Symposium on Uncertainty Quantification and Stochastic Modeling (UNCERTAINTIES). Florianopolis, Brazil
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2017). Die Cross-Entropy-Methode in der Zuverlässigkeitsanalyse. SOFiSTiK AG, Oberschleißheim, Germany
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2017). Modified cross entropy-based importance sampling with a flexible mixture model (Poster). Frontiers of Uncertainty Quantification in Engineering (FRONTUQ). Munich, Germany
• Sebastian Geyer, Iason Papaioannou, Daniel Straub (2017). Gaussian densities in the cross entropy method for reliability analysis. International Conference on Uncertainty Quantification in Computational Sciences and Engineering (UNCECOMP). Rhodes, Greece