Dr.-Ing. Steffen Freitag
Ruhr University Bochum
Institute for Structural Mechanics
IC / 6 / 179
Universitätsstraße 150
44801 Bochum

Email: steffen.freitag@sd.rub.de
Tel: 0234 / 32-29061

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Short CV


since 2016 Research Group Leader and Akademischer Rat at the Institute for Structural Mechanics, Department of Civil and Environmental Engineering, Ruhr University Bochum
2017 - 2018 Spokesman of the Junges Kolleg at the North Rhine-Westphalian Academy of Sciences, Humanities and the Arts
2012 - 2016 Junior Research Group Leader at the Institute for Structural Mechanics, Department of Civil and Environmental Engineering, Ruhr University Bochum
2011 - 2012 Visiting Scholar at the School of Civil and Environmental Engineering, Georgia Institute of Technology, USA
2010PhD within the Collaborative Research Center 528, Faculty of Civil Engineering, TU Dresden
2005 - 2012 Research Associate at the Institute for Structural Analysis, Faculty of Civil Engineering, TU Dresden
2000 - 2005 Student of Civil Engineering at TU Dresden, specialised in Structural Enginnering and Mechanics, Degree Dipl.-Ing.

Scientific Networks



Research


Research Group Computational Intelligence and Structural Reliability

  • Numerical Simulation with Uncertain Data
  • Structural Safety and Reliability
  • Surrogate Models and Model Order Reduction
  • Artificial Neural Networks and Machine Learning
  • Real-time Simulation
  • Optimization of Structures and Processes
  • Interaction Modelling
  • Time-dependent Material Models


Lectures


  • Baustatik 2
  • Tragwerksanalyse mit unscharfen Daten


Publications


Scientific Publications in Refereed Journals

[ 1 ] G. Meschke, M. Thewes, M. König, P. Mark, S. Freitag, B. T. Cao, M. Obel, A. Jodehl, A. Vonthron, Y. Salloum, and M. Stepien
Interaction modeling in mechanized tunneling: Real-time simulations Tunnelbau: Echtzeitsimulationen zur vortriebsbegleitenden Prozesssteuerung
Tunnel, page submitted, 2020
[ 2 ] S. Freitag, P. Edler, K. Kremer, and G. Meschke
Multilevel surrogate modeling approach for optimization problems with polymorphic uncertain parameters
International Journal of Approximate Reasoning, 119:81--91, 2020
Special issue on Computing with confidence
DOI ]
[ 3 ] M. Drieschner, Y. Petryna, S. Freitag, P. Edler, A. Schmidt, and T. Lahmer
Decision making and design in structural engineering problems under polymorphic uncertainty
Engineering Structures, 2020
in review
[ 4 ] B. T. Cao, M. Obel, S. Freitag, P. Mark, and G. Meschke
Artificial neural network surrogate modelling for real-time predictions and control of building damage during mechanised tunnelling
Advances in Engineering Software, 149:102869 (14 pages), 2020
DOI ]
[ 5 ] A. Saadallah, A. Egorov, B. T. Cao, S. Freitag, K. Morik, and G. Meschke
Active learning for accurate settlement prediction using numerical simulations in mechanized tunneling
Procedia CIRP, 81:1052--1058, 2019
Special Issue: 52nd CIRP Conference on Manufacturing Systems
DOI ]
[ 6 ] M. Mäck, I. Caylak, P. Edler, S. Freitag, M. Hanss, R. Mahnken, G. Meschke, and E. Penner
Optimization with constraints considering polymorphic uncertainties
Surveys for Applied Mathematics and Mechanics (GAMM-Mitteilungen), 42(1):e201900005, 1--12, 2019
Special Issue: Polymorphic Uncertainty Modelling for Numerical Design of Structures -- Part I
DOI ]
[ 7 ] K. Kremer, P. Edler, N. Miska, F. Leichsenring, D. Balzani, S. Freitag, W. Graf, M. Kaliske, and G. Meschke
Modeling of structures with polymorphic uncertainties at different length scales
Surveys for Applied Mathematics and Mechanics (GAMM-Mitteilungen), 42(1):e201900006, 1--18, 2019
Special Issue: Polymorphic Uncertainty Modelling for Numerical Design of Structures -- Part I
DOI ]
[ 8 ] P. Edler, S. Freitag, K. Kremer, and G. Meschke
Optimization approaches for the numerical design of structures under consideration of polymorphic uncertain data
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems Part B: Mechanical Engineering, 5(4):041013 (12 pages), 2019
DOI ]
[ 9 ] M. Obel, A. Marwan, A. Alsahly, S. Freitag, P. Mark, and G. Meschke
Schadensbewertungskonzepte für innerstädtische Bauwerke bei maschinellen Tunnelvortrieben
Bauingenieur, 93(12):482--491, 2018
http ]
[ 10 ] S. Freitag, P Edler, K. Kremer, M. Hofmann, and G. Meschke
Optimization approaches for durable reinforced concrete structures considering interval and stochastic parameter uncertainty
Proceedings in Applied Mathematics and Mechanics, 18(1):1--4, 2018
DOI ]
[ 11 ] S. Freitag, B.T. Cao, J. Ninic, and G. Meschke
Recurrent neural networks and proper orthogonal decomposition with interval data for real-time predictions of mechanised tunnelling processes
Computers and Structures, 207:258--273, 2018
Special Issue CIVIL-COMP 2017
DOI ]
[ 12 ] B.T. Cao, S. Freitag, and G. Meschke
A fuzzy surrogate modelling approach for real-time settlement predictions in mechanised tunnelling
International Journal of Reliability and Safety, 12(1/2):187--217, 2018
Special Issue on Computing with Polymorphic Uncertain Data
DOI ]
[ 13 ] J. Ninić, S. Freitag, and G. Meschke
A hybrid finite element and surrogate modelling approach for simulation and monitoring supported TBM steering
Tunnelling and Underground Space Technology, 63:12--28, 2017
DOI ]
[ 14 ] M. Oeser and S. Freitag
Fractional derivatives and recurrent neural networks in rheological modelling -- part I: theory
International Journal of Pavement Engineering, 17(2):87--102, 2016
DOI ]
[ 15 ] S. Freitag, B.T. Cao, and G. Meschke
Surrogate modelling for real-time predictions of mechanised tunnelling processes with interval data
Proceedings in Applied Mathematics and Mechanics, 16:35--38, 2016
DOI ]
[ 16 ] B.T. Cao, S. Freitag, and G. Meschke
A hybrid RNN-GPOD surrogate model for real-time settlement predictions in mechanised tunnelling
Advanced Modeling and Simulation in Engineering Sciences, 3(5):1--22, 2016
Special Issue Model order reduction: POD, PGD and reduced bases
DOI ]
[ 17 ] S. Freitag, B. T. Cao, J. Ninić, and G. Meschke
Hybrid surrogate modelling for mechanised tunnelling simulations with uncertain data
International Journal of Reliability and Safety, 9(2/3):154--173, 2015
Special Issue on Reliability and Computations of Infrastructures
DOI ]
[ 18 ] G. Meschke, S. Freitag, A. Alsahly, J. Ninić, S. Schindler, and C. Koch
Numerische Simulation maschineller Tunnelvortriebe in innerstädtischen Gebieten im Rahmen eines Tunnelinformationsmodells
Bauingenieur, 89(11):457--466, 2014
http ]
[ 19 ] S. Freitag, W. Graf, and M. Kaliske
A material description based on recurrent neural networks for fuzzy data and its application within the finite element method
Computers and Structures, 124:29--37, 2013
Special Issue: KRETA
DOI ]

Scientific Publications in Conference Proceedings

[ 20 ] S. Freitag, S. Peters, P. Edler, and G. Meschke
Structural optimization under polymorphic uncertainties using artificial neural networks
In Proceedings of the 9th International Workshop on Reliable Engineering Computing (REC 2021), Taormina, 2021
abstract accepted
[ 21 ] S. Freitag, P. Edler, S. Roskosch, and G. Meschke
Artificial neural network surrogate modeling for structural optimization under polymorphic uncertainty
In 14th World Congress on Computational Mechanics (WCCM) and ECCOMAS Congress 2020, Paris, 2021
abstract accepted
[ 22 ] D. Betancourt, S. Freitag, and R.L. Muhanna
Damage detection for structural health monitoring under uncertainty using deep interval neural networks
In Proceedings of the 9th International Workshop on Reliable Engineering Computing (REC 2021), Taormina, 2021
abstract accepted
[ 23 ] G. Meschke, S. Freitag, A. Alsahly, and B.T. Cao
Numerische Vortriebssimulation im maschinellen Tunnelbau
In 7. Münchener Tunnelbau Symposium. Universität der Bundeswehr München, 2020
submitted
[ 24 ] G. Meschke, S. Freitag, A. Alsahly, and B.T. Cao
Computergestützte Simulationen im maschinellen Tunnelbau -- vom Design zur Vortriebssteuerung
In M. Bischoff, M. von Scheven, and B. Oesterle, editors, Baustatik-Baupraxis 14, pages 81--88. Universität Stuttgart, 2020
DOI ]
[ 25 ] S. Freitag, S. Peters, P. Edler, and G Meschke
Artificial neural networks for topology optimization considering polymorphic uncertainty
In 6th GAMM AG Data Workshop -- Data-driven Modeling and Numerical Simulation of Microstructured Materials, pages 7--8, online, 2020
[ 26 ] S. Freitag, P. Edler, K. Kremer, M. Hofmann, and G. Meschke
Minimierung von Rissweiten in Stahlbetontragwerken unter Berücksichtigung polymorph unscharfer Parameter
In M. Bischoff, M. von Scheven, and B. Oesterle, editors, Baustatik-Baupraxis 14, pages 723--730. Universität Stuttgart, 2020
DOI ]
[ 27 ] S. Freitag
Structural optimization under uncertainty
In 1st International Conference on Programmable Materials (ProgMatCon2020), Berlin, 2020
abstract accepted
[ 28 ] P. Edler, S. Freitag, and G. Meschke
Combination of shifted interval method and multilevel surrogate modelling strategy for optimization problems considering polymorphic uncertainties
In 7th International Symposium on Reliability Engineering and Risk Management (ISRERM 2020), Beijing, 2020
paper accepted
[ 29 ] B.T. Cao, M Obel, S. Freitag, P. Mark, and G Meschke
Real-time reliability analysis of tunneling-induced building damage
In T. Takata, I. Yoshida, and T. Itoi, editors, 7th Asia-Pacific Symposium on Structural Reliability and Its Applications (APSSRA2020), pages 109--114, Tokyo, 2020
[ 30 ] B.T. Cao, A. Saadallah, S. Freitag, G Meschke, and K. Morik
Online geological anomaly detection using machine learning in mechanized tunneling
In 16th International Conference of the International Association for Computer Methods and Advances in Geomechanics (IACMAG 2020), Turin, 2020
accepted
[ 31 ] G. Meschke, B.T. Cao, A. Egorov, A. Saadallah, S. Freitag, and K. Morik
Big data and simulation -- A new approach for real-time TBM steering
In D. Peila, G. Viggiani, and T. Celestino, editors, Tunnels and Underground Cities. Engineering and Innovation Meet Archaeology, Architecture and Art, Proceedings of the WTC 2019 ITA-AITES World Tunnel Congress (WTC 2019), pages 2681--2690, Naples, 2019. Taylor & Francis
DOI ]
[ 32 ] K. Kremer, P. Edler, S. Freitag, and G. Meschke
Sub-modeling approach to investigate the cracking behavior of reinforced concrete structures considering polymorphic uncertainty
In Proceedings of the ECCOMAS Thematic Conference -- Computational Methods in Multi-Scale, Multi-Uncertainty and Multi-Physics Problems (CM4P), pages 27--28, Porto, 2019
[ 33 ] S. Freitag, P. Edler, K. Kremer, M. Hofmann, and G. Meschke
Optimization of structures under consideration of polymorphic uncertain parameters
In 5th International Conference on Soft Computing and Optimization in Civil, Structural and Environmental Engineering (CIVIL-COMP-OPTI 2019), Riva del Garda, 2019
[ 34 ] S. Freitag, K. Kremer, P. Edler, M. Hofmann, and G. Meschke
Structural reliability and durability assessment of reinforced concrete structures
In M. Beer and E. Zio, editors, Proceedings of the 29th European Safety and Reliability Conference (ESREL 2019), pages 2229--2236, Hannover, 2019
DOI ]
[ 35 ] S. Freitag, B.T. Cao, and G. Meschke
Real-time reliability analysis in mechanized tunneling
In Proceedings of the 13th International Conferences on Applications of Statistics and Probability in Civil Engineering (ICASP13), pages 1--8, Seoul, 2019
DOI ]
[ 36 ] S. Freitag
Artificial neural networks for the modeling of the constitutive behavior of materials
In GAMM AG Data Workshop -- New Challenges in Data-Driven Modeling, page 17. RWTH Aachen University, 2019
[ 37 ] P. Edler, S. Freitag, K. Kremer, M. Hofmann, and G. Meschke
Optimization of reinforced concrete structures under consideration of scale bridging uncertainties
In M. Papadrakakis, V. Papadopoulos, and G. Stefanou, editors, Proceedings of the 3rd ECCOMAS Thematic Conference on Uncertainty Quantification in Computational Sciences and Engineering (UNCECOMP 2019), Crete, 2019
[ 38 ] B.T. Cao, M. Obel, S. Freitag, G. Meschke, and P. Mark
Artificial neural networks for real-time prediction of soil-structure interaction in mechanized tunneling
In 5th International Conference on Soft Computing and Optimization in Civil, Structural and Environmental Engineering (CIVIL-COMP-OPTI 2019), Riva del Garda, 2019
[ 39 ] P. Edler, S. Freitag, K. Kremer, and G. Meschke
Optimization of durability performance of reinforced concrete structures under consideration of polymorphic uncertain data
In Proceedings of the joint ICVRAM ISUMA UNCERTAINTIES conference, pages 1--19, Florianopolis, Brazil, April 2018
.PDF ]
[ 40 ] G. E. Neu, V. E. Gall, S. Freitag, and G. Meschke
Robust design of hybrid steel fiber reinforced concrete tunnel lining segments
In G. Meschke, B. Pichler, and J. G. Rots, editors, Computational Modelling of Concrete Structures (EURO-C 2018), pages 715--724. Taylor & Francis, 2018
[ 41 ] G. Meschke, B.T. Cao, A. Alsahly, and S. Freitag
Real-time TBM steering assistance system using numerical simulation and monitoring data
In Proceedings of the ITA-AITES World Tunnel Congress 2018 (WTC 2018), pages 1--14, Dubai, 2018
[ 42 ] K. Kremer, P. Edler, S. Freitag, M. Hofmann, and G. Meschke
Multiscale deterioration modelling of reinforced concrete structures considering polymorphic uncertainties
In E. Schlangen, G. de Schutter, B. Šavija, H. Zhang, and C. Romero Rodriguez, editors, Proceedings of the Symposium on Concrete Modelling -- CONMOD2018, 72th RILEM-week, pages 281--284, TU Delft, Netherlands, 2018. RILEM Publications S.A.R.L., Paris
[ 43 ] K. Kremer, P. Edler, S. Freitag, M. Hofmann, and G. Meschke
Numerical durability simulation of reinforced concrete structures under consideration of polymorphic uncertain data
In R. Caspeele, L. Taerwe, and D. M Frangopol, editors, Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision, Proceedings of the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018), pages 1089--1096, Ghent, 2018
Taylor and Francis
[ 44 ] S. Freitag, P. Edler, K. Kremer, and G. Meschke
Optimization with polymorphic uncertainty models for the design of durable reinforced concrete structures
In Proceedings of the 13th World Congress on Computational Mechanics (WCCM 2018), New York, 2018
[ 45 ] S. Freitag, P Edler, K. Kremer, and G. Meschke
Surrogate modelling for solving optimization problems with polymorphic uncertain data
In Proceedings of the 8th International Workshop on Reliable Engineering Computing (REC 2018), pages 31--39, Liverpool, 2018
.pdf ]
[ 46 ] K. Kremer, S. Freitag, M. Hofmann, and G. Meschke
Deterioration of reinforced concrete structures under consideration of polymorphic multiscale uncertainty modelling
In M. Papadrakakis, V. Papadopoulos, and G. Stefanou, editors, Proceedings of the 2nd ECCOMAS Thematic Conference on Uncertainty Quantification in Computational Sciences and Engineering (UNCECOMP 2017), page paper 17157, Rhodes Island, 2017
[ 47 ] S. Freitag, K. Kremer, M. Hofmann, and G. Meschke
Numerical design of reinforced concrete structures under polymorphic uncertain conditions
In C. Bucher, B.R. Ellingwood, and D.M. Frangopol, editors, Safety, Reliability, Risk, Resilience and Sustainability of Structures and Infrastructure, Proceedings of the 12th International Conference on Structural Safety and Reliability (ICOSSAR 2017), pages 1535--1542, Vienna, 2017. TUVerlag
[ 48 ] S. Freitag, B.T. Cao, and G. Meschke
Surrogate models for real-time predictions in mechanized tunneling
In L. Abrahamczyk, D. Legatiuk, and F. Werner, editors, GRK 1462 International Workshop on Coupled Numerical and Experimental Models in Structural Engineering, number Heft 17 in Schriftenreihe des DFG Graduiertenkollegs 1462 Modellqualitäten, pages 61--62. Bauhaus University Weimar, 2017
[ 49 ] S. Freitag, B.T. Cao, and G. Meschke
Real-time reliability analysis in mechanized tunneling for surface settlement control
In G. Hofstetter, K. Bergmeister, J. Eberhardsteiner, G. Meschke, and H.F. Schweiger, editors, Proceedings of the 4th International Conference on Computational Methods in Tunneling and Subsurface Engineering (EURO:TUN 2017), pages 473--480. Innsbruck University, 2017
[ 50 ] B.T. Cao, A. Egorov, S. Freitag, G. Meschke, and K. Morik
Model fusion for settlement prediction in mechanized tunneling
In 4th International Workshop on Reduced Basis, POD and PGD Model Reduction Techniques (MORTech 2017), page 43, Seville, 2017
[ 51 ] B.T. Cao, S. Freitag, and G. Meschke
Real-time fuzzy analysis of machine driven tunneling
In M. Papadrakakis, V. Papadopoulos, and G. Stefanou, editors, Proceedings of the 2nd ECCOMAS Thematic Conference on Uncertainty Quantification in Computational Sciences and Engineering (UNCECOMP 2017), pages 329--338, Rhodes Island, 2017
[ 52 ] S. Freitag, G. Meschke, B.T. Cao, and A. Alsahly
Numerical simulation of mechanised tunnelling processes with polymorphic uncertain data
In Proceedings of the 12th World Congress on Computational Mechanics (WCCM 2016), page 1962, Seoul, 2016
[ 53 ] S. Freitag, A. Alsahly, and G. Meschke
Numerical reliability analysis of tunnel face stability with interval and fuzzy soil parameters
In H. Huang, J. Li, J. Zhang, and J. Chen, editors, Proceedings of the 6th Asian-Pacific Symposium on Structural Reliability and its Applications (APSSRA 2016), pages 280--285, Shanghai, 2016
[ 54 ] B.T. Cao, S. Freitag, and G. Meschke
Real-time prediction of structural processes with polymorphic uncertain data
In S. Freitag, R.L. Muhanna, and R.L. Mullen, editors, Proceedings of the 7th International Workshop on Reliable Engineering Computing (REC 2016), pages 469--488, Bochum, 2016
[ 55 ] G. Meschke, J. Ninic, S. Freitag, B.T. Cao, A. Alsahly, and V. Gall
Predictions of soil-structure interaction in mechanized tunneling and TBM steering support
In M. Cvetkovska, editor, Proceedimngs of the 16th International Symposium of Macedonian Association of Structural Engineers (MASE 2015), pages 183--193. Macedonian Association of Structural Engineers, 2015
[ 56 ] G. Meschke, A. Alsahly, S. Freitag, J. Ninić, V.E. Gall, and B.T. Cao
Simulation based real time prognosis for mechanized tunneling
In SEE Tunnel: Promoting Tunneling in SEE Region, Proceedings of the ITA World Tunnel Congress, Dubrovnik, 2015
[ 57 ] S. Freitag, B.T. Cao, J. Ninić, and G. Meschke
Hybrid RNN-GPOD surrogate model for simulation and monitoring supported tbm steering
In Y. Tsompanakis, J. Kruis, and B.H.V. Topping, editors, Proceedings of the 4th International Conference on Soft Computing Technology in Civil, Structural and Environmental Engineering (CSC2015), page Paper 2, Prague, 2015. Civil-Comp Press
DOI ]
[ 58 ] B.T. Cao, S. Freitag, and G. Meschke
Hybrid RNN-GPOD surrogate model for real-time simulations with uncertain data in mechanised tunnelling
In 3rd International Workshop on Reduced Basis, POD and PGD Model Reduction Techniques, pages 57--58, Cachan, 2015
[ 59 ] B.T. Cao, S. Freitag, and G. Meschke
Gappy POD based surrogate model for numerical simulations in mechanised tunnelling
In Proceedings of the 3rd ECCOMAS Young Investigators Conference and the 6th GACM Colloquium on Computational Mechanics (YIC GACM 2015), Aachen, 2015
[ 60 ] J. Ninić, C. Koch, S. Freitag, G. Meschke, and M. König
Simulation- and monitoring-based steering for mechanized tunneling using project data of Wehrhahn-Linie
In Proceedings of the 11th World Congress on Computational Mechanics (WCCM 2014), Barcelona, 2014
online available
[ 61 ] G. Meschke, S. Freitag, J. Ninić, and B.T. Cao
Numerische Simulation maschineller Tunnelvortriebe zur vortriebsbegleitenden Prognose von Steuerparametern
In K. Bletzinger, R. Fisch, and N. Gebbeken, editors, Baustatik-Baupraxis 12, pages 501--508. TU München, UniBW München, 2014
[ 62 ] S. Freitag, B. T. Cao, J. Ninić, and G. Meschke
Surrogate modeling for mechanized tunneling simulations with uncertain data
In M. Modares, editor, Proceedings of the 6th International Workshop on Reliable Engineering Computing (REC 2014), pages 44--63, Chicago, 2014
[ 63 ] S. Freitag, B.T. Cao, and G. Meschke
Numerical predictions of surface settlements in mechanized tunneling: Hybrid POD and ANN surrogate modeling for reliability analyses
In M. Beer, S.-K. Au, and J.W. Hall, editors, Vulnerability, Uncertainty, and Risk: Quantification, Mitigation, and Management (Proceedings of the Second International Conference on Vulnerability and Risk Analysis and Management (ICVRAM) and the Sixth International Symposium on Uncertainty, Modeling, and Analysis (ISUMA)), pages 557--566, Liverpool, 2014. ASCE
DOI ]
[ 64 ] B. T. Cao, S. Freitag, and G. Meschke
Steering of mechanized tunneling processes with hybrid surrogate models based on numerical and monitoring data
In Proceedings of the 11th World Congress on Computational Mechanics (WCCM 2014), Barcelona, 2014
online available
[ 65 ] J. Stascheit, S. Freitag, M. Beer, K.K. Phoon, J. Ninić, B.T. Cao, and G. Meschke
Concepts for reliability analyses in mechanised tunnelling -- part 2: Application
In G. Meschke, J. Eberhardsteiner, T. Schanz, K. Soga, and M. Thewes, editors, Proceedings of the Third International Conference on Computational Methods in Tunnelling and Subsurface Engineering (EURO:TUN 2013), pages 801--811, Bochum, 2013. Aedificatio Publishers
[ 66 ] G. Meschke, S. Freitag, J. Ninić, and B.T. Cao
Simulations- und monitoring-basierte prozesssteuerung im maschinellen tunnelbau
In M. Kaliske and W. Graf, editors, Ingenieurwissen und Vorschriftenwerk, 17. Dresdner Baustatik-Seminar, pages 127--149. Institut für Statik und Dynamik der Tragwerke, TU Dresden, 2013
[ 67 ] S. Freitag, M. Beer, K.K. Phoon, J. Stascheit, J. Ninić, B.T. Cao, and G. Meschke
Concepts for reliability analyses in mechanised tunnelling -- part 1: Theory
In G. Meschke, J. Eberhardsteiner, T. Schanz, K. Soga, and M. Thewes, editors, Proceedings of the Third International Conference on Computational Methods in Tunnelling and Subsurface Engineering (EURO:TUN 2013), pages 791--799, Bochum, 2013. Aedificatio Publishers
[ 68 ] S. Freitag, R.L. Muhanna, and W. Graf
Interval monte carlo simulation with neural network-based surrogate models
In G. Deodatis, B.R. Ellingwood, and D.M. Frangopol, editors, Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures, Proceedings of the 11th International Conference on Structural Safety and Reliability (ICOSSAR 2013), pages 431--438, New York, 2013. Taylor and Francis
[ 69 ] S. Freitag
Identification of neural network based material models under uncertainty
In Y. Tsompanakis, editor, Proceedings of the 3rd International Conference on Soft Computing Technology in Civil, Structural and Environmental Engineering (CSC2013), page paper 7, Cagliari, 2013
Civil-Comp Press
DOI ]

Co-Author of Handbooks

[ 70 ] G. Meschke, B.T. Cao, and S. Freitag
Reliability analysis and real-time predictions in mechanized tunneling
In M. Beer, H. Huang, B.M. Ayyub, D. Zhang, and B.M. Phillips, editors, Resilience Engineering for Urban Tunnels, chapter 2, pages 13--27. ASCE, Reston, 2018
DOI ]
[ 71 ] S. Freitag
Statische Berechnungen mit polymorph unscharfen Daten
In S. Freitag, M. Geierhos, R. Asmani, and J.I. Haug, editors, Unschärfe -- Der Umgang mit fehlender Eindeutigkeit, pages 129--141. Verlag Ferdinand Schöningh, Nordrhein-Westfälische Akademie der Wissenschaften und der Künste -- Junges Kolleg edition, 2018
[ 72 ] S. Freitag
Artificial neural networks in structural mechanics
In Y. Tsompanakis, J. Kruis, and B.H.V. Topping, editors, Computational Technology Reviews, volume 12, pages 1--26. Saxe-Coburg Publications, Stirlingshire, 2015
DOI ]

Co-Editor of Books and Collections

[ 73 ] S. Freitag, M. Geierhos, R. Asmani, and J.I. Haug, editors
Unschärfe -- Der Umgang mit fehlender Eindeutigkeit
Verlag Ferdinand Schöningh, Nordrhein-Westfälische Akademie der Wissenschaften und der Künste -- Junges Kolleg edition, 2018

Co-Editor of Special Issues of Scientific Journals

[ 74 ] S. Freitag, R.L. Muhanna, and R.L. Mullen
Special Issue on: Computing with Polymorphic Uncertain Data
In International Journal of Reliability and Safety, volume 12, pages 1--235. 2018
11 contributions
http ]

Co-Editor of Conference Proceedings

[ 75 ] G. Meschke, S. Freitag, C. Birk, J. Menkenhagen, and T. Ricken, editors
Baustatik-Baupraxis 13. Forschungsvereinigung Baustatik-Baupraxis, Ruhr-Universität Bochum, 2017
ISBN: 978-3-00-055827-6, 552 Seiten
[ 76 ] S. Freitag, R.L. Muhanna, and R.L. Mullen, editors
Proceedings of the 7th International Workshop on Reliable Engineering Computing (REC 2016). Ruhr University Bochum, 2016
550 pages
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