| Preprints |
| M. Hartisch and U. Lorenz. Game tree search in a robust multistage optimization framework: Exploiting pruning mechanisms. arXiv preprint arXiv:1811.12146; To appear in: 16th International Conference on Advances in Computer Games, 2019. [ http ] |
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| 2025 |
| M. M. Sanchez Martin, S. Reichel, S. Brodesser, M. Schweitzer, and A. F. Pinatti de Carvalho. Awareness, motivation and leadership in production systems: A socio-technical perspective. In Computer Supported Cooperative Work, Vol. 34. Springer, 2025. [ DOI ] |
| E. S. Allen, A. F. P. de Carvalho, S. Hoffmann, M. Schweitzer, and K. Schaumann. Workplace aspects of knowledge and expertise sharing practices supported by augmented reality systems: Findings from a design case study. Computer Supported Cooperative Work (CSCW), 34(1):155--205, 2025. |
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| 2023 |
| A. F. Pinatti de Carvalho, S. Reichel, M. M. Sanchez Martin, E. S. Allen, and M. Schweitzer. Group effect aspects in digitalisation production contexts: Articulation spaces for emerging cooperation challenges. Proceedings of the ACM on Human-Computer Interaction, 7(GROUP):1--28, 2023. [ DOI ] |
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| 2022 |
| A. F. P. de Carvalho, S. Hoffmann, D. Abele, M. Schweitzer, and V. Wulf. Entwicklung eines cypber-physischen produktionssystems auf grundlage qualitativer feldforschung unter anwendung des grounded designs. 2022. |
| S. Hoffmann, A. F. Pinatti de Carvalho, M. Schweitzer, N. D. Abele, and V. Wulf. Producing and consuming instructional material in manufacturing contexts: evaluation of an ar-based cyber-physical production system for supporting knowledge and expertise sharing. Proceedings of the ACM on Human-Computer Interaction, 6(CSCW2):1--36, 2022. |
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| 2021 |
| M. Hartisch. Adaptive relaxations for multistage robust optimization. In D. N. Pham, T. Theeramunkong, G. Governatori, and F. Liu, editors, PRICAI 2021: Trends in Artificial Intelligence, pages 485--499, Cham, 2021. Springer International Publishing. [ DOI ] |
| M. Goerigk and M. Hartisch. Multistage robust discrete optimization via quantified integer programming. Computers & Operations Research, 135:105434, 2021. [ DOI | http ] |
| C. Reintjes and U. Lorenz. Bridging mixed integer linear programming for truss topology optimization and additive manufacturing. Optimization and Engineering, 22(2):849--893, 2021. [ DOI ] |
| A. Herbst. Pooling of contracts for outsourcing problems with two-dimensional asymmetric information. In International Conference on Operations Research, pages 311--317. Springer, 2021. [ DOI ] |
| C. Reintjes, J. Reuter, M. Hartisch, U. Lorenz, and B. Engel. Towards cad-based mathematical optimization for additive manufacturing--designing forming tools for tool-bound bending. In International Conference on Uncertainty in Mechanical Engineering, pages 12--22. Springer International Publishing Cham, 2021. |
| M. Hartisch, C. Reintjes, T. Marx, and U. Lorenz. Robust topology optimization of truss-like space structures. In International Conference on Uncertainty in Mechanical Engineering, pages 296--306. Springer, 2021. |
| C. Reintjes and U. Lorenz. Algorithm-driven optimization of support-free truss-like structures in early-stage design for additive manufacturing. PAMM, 20(1):e202000204, 2021. |
| A. F. P. de Carvalho, S. Hoffmann, D. Abele, M. Schweitzer, and V. Wulf. Wissensarchivierung und -transfer im rahmen betrieblicher rüstvorgänge - design eines ar-basierten cyber-physichen produktionssystems. 2021. |
| N. D. Abele, S. Hoffmann, A. F. P. de Carvalho, M. Schweitzer, V. Wulf, and K. Kluth. Design eines praxisorientierten und wissensbasierten cyber-physischen systems für industrielle rüstvorgänge. Zeitschrift für Arbeitswissenschaft, 76(2):176--191, 2021. |
| A. F. P. de Carvalho, S. Hoffmann, D. Abele, M. Schweitzer, and V. Wulf. Designing cyber-physical production systems for industrial set-up: a practice-centred approach. In IFIP Conference on Human-Computer Interaction, pages 678--701. Springer, 2021. |
| N. D. Abele, S. Hoffmann, A. F. P. De Carvalho, M. Schweitzer, V. Wulf, and K. Kluth. Knowledge and expertise sharing--designing an ar-mediated cyber-physical production system for industrial set-up processes. In Congress of the International Ergonomics Association, pages 347--354. Springer, 2021. |
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| 2020 |
| U. Lorenz, C. Donninger, M. N. Ali, E. Günes, and C. Lutz. Hydra: Report and technical overview. ICGA Journal, 42(2-3):132--151, 2020. [ DOI ] |
| M. Hartisch and U. Lorenz. A novel application for game tree search-exploiting pruning mechanisms for quantified integer programs. In Advances in Computer Games: 16th International Conference, ACG 2019, Macao, China, August 11--13, 2019, Revised Selected Papers 16, pages 66--78. Springer, 2020. |
| M. Hartisch. Quantified Integer Programming with Polyhedral and Decision-Dependent Uncertainty. PhD thesis, University of Siegen, Germany, 2020. [ DOI ] |
| J. B. Weber, M. Hartisch, A. D. Herbst, and U. Lorenz. Towards an algorithmic synthesis of thermofluid systems. Optimization and Engineering, pages 1--56, 2020. [ DOI ] |
| M. Hartisch and U. Lorenz. Robust multistage optimization with decision-dependent uncertainty. In Operations Research Proceedings 2019, pages 439--445. Springer, 2020. [ DOI ] |
| C. Reintjes, M. Hartisch, and U. Lorenz. Support-free lattice structures for extrusion-based additive manufacturing processes via mixed-integer programming. In Operations Research Proceedings 2019, pages 465--471. Springer, 2020. [ DOI ] |
| J. B. Weber, M. Hartisch, and U. Lorenz. Optimized design of thermofluid systems using the example of mold cooling in injection molding. In Operations Research Proceedings 2019, pages 473--480. Springer, 2020. [ DOI ] |
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| 2019 |
| C. Reintjes and U. Lorenz. Mixed integer optimization for truss topology design problems as a design tool for am components. In Sim-AM 2019: II International Conference on Simulation for Additive Manufacturing, pages 193--204. CIMNE, 2019. |
| C. Reintjes, M. Hartisch, and U. Lorenz. Design and optimization for additive manufacturing of cellular structures using linear optimization. In Operations Research Proceedings 2018, pages 371--377. Springer, 2019. [ DOI ] |
| M. Hartisch and U. Lorenz. Mastering uncertainty: Towards robust multistage optimization with decision dependent uncertainty. In 16th Pacific Rim International Conference on Artificial Intelligence, PRICAI 2019, pages 446--458. Springer, 2019. [ DOI ] |
| S. Hoffmann, A. F. P. de Carvalho, D. Abele, M. Schweitzer, P. Tolmie, and V. Wulf. Cyber-physical systems for knowledge and expertise sharing in manufacturing contexts: Towards a model enabling design. Computer Supported Cooperative Work (CSCW), 28(3-4):469--509, 2019. [ DOI ] |
| J. B. Weber and U. Lorenz. Modeling thermofluid systems: An approach customized for optimization. In Operations Research Proceedings 2018, pages 387--393. Springer, 2019. |
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| 2018 |
| C. Reintjes, M. Hartisch, and U. Lorenz. Lattice structure design with linear optimization for additive manufacturing as an initial design in the field of generative design. In Operations Research Proceedings 2017: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Freie Universiät Berlin, Germany, September 6-8, 2017, pages 451--457. Springer, 2018. |
| M. Hartisch, A. Herbst, U. Lorenz, and J. Weber. Towards resilient process networks-designing booster stations via quantified programming. In Applied Mechanics and Materials, volume 885, pages 199--210. Trans Tech Publ, 2018. [ DOI ] |
| J. B. Weber and U. Lorenz. Algorithmic system design of thermofluid systems. In International Conference on Engineering Optimization, pages 132--143. Springer, 2018. |
| A. F. P. De Carvalho, S. Hoffmann, D. Abele, M. Schweitzer, P. Tolmie, D. Randall, and V. Wulf. Of embodied action and sensors: Knowledge and expertise sharing in industrial set-up. Computer Supported Cooperative Work (CSCW), 27(3-6):875--916, 2018. [ DOI ] |
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| 2017 |
| T. Ederer, M. Hartisch, U. Lorenz, T. Opfer, and J. Wolf. Yasol: An open source solver for quantified mixed integer programs. In 15th International Conference on Advances in Computer Games, ACG 2017, pages 224--233, 2017. [ DOI | http ] |
| J. B. Weber and U. Lorenz. Optimizing booster stations. In Proceedings of the Genetic and Evolutionary Computation Conference Companion, pages 1303--1310, 2017. |
| L. Schulte, C. Kuhnhen, D. Abele, S. Hoffmann, A. F. Pinatti de Carvalho, B. Engel, M. Schweitzer, and V. Wulf. Cyber equipping 4.0--fe-simulation-based setting instructions for a rotary draw-bending machine. In COMPLAS XIV: proceedings of the XIV International Conference on Computational Plasticity: fundamentals and applications, pages 754--765. CIMNE, 2017. |
| F. Baumann, T. Ludwig, N. D. Abele, S. Hoffmann, and D. Roller. Model-data streaming for additive manufacturing securing intellectual property. 2017. |
| L. C. Altherr, T. Ederer, C. Schänzle, U. Lorenz, and P. F. Pelz. Algorithmic system design using scaling and affinity laws. In Operations Research Proceedings 2015, pages 605--611. Springer, 2017. |
| |
| 2016 |
| M. Hartisch, T. Ederer, U. Lorenz, and J. Wolf. Quantified integer programs with polyhedral uncertainty set. In Computers and Games: 9th International Conference, CG 2016, Leiden, The Netherlands, June 29--July 1, 2016, Revised Selected Papers 9, pages 156--166. Springer, 2016. |
| M. Hartisch, T. Ederer, U. Lorenz, and J. Wolf. Quantified integer programs with polyhedral uncertainty set. In 9th International Conference on Computers and Games, CG 2016, pages 156--166, 2016. [ DOI | www: ] |
| N. D. Abele, S. Hoffmann, C. Kuhnhen, T. Ludwig, W. Schäfer, M. Schweitzer, and V. Wulf. Supporting the set-up processes by cyber elements based on the example of tube bending. Informatik 2016, 2016. |
| L. C. Altherr, T. Ederer, U. Lorenz, P. F. Pelz, and P. Pöttgen. Experimental validation of an enhanced system synthesis approach. In Operations Research Proceedings 2014, pages 1--7. Springer, 2016. |
| L. C. Altherr, T. Ederer, U. Lorenz, P. F. Pelz, and P. Pöttgen. Designing a feedback control system via mixed-integer programming. In Operations Research Proceedings 2014, pages 121--127. Springer, 2016. |
| P. Pöttgen, T. Ederer, L. Altherr, U. Lorenz, and P. F. Pelz. Examination and optimization of a heating circuit for energy-efficient buildings. Energy Technology, 4(1):136--144, 2016. |
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| 2015 |
| M. Hartisch. Impact of rounding during retrograde analysis for a game with chance nodes: Karl's race as a test case. J. Int. Comput. Games Assoc., 38(2):81--93, 2015. [ DOI | http ] |
| M. Hartisch and I. Althöfer. Optimal robot play in certain chess endgame situations. J. Int. Comput. Games Assoc., 38(3):180--185, 2015. [ DOI | http ] |
| I. Althöfer and M. Hartisch. On the effects of biasing win conditions. Game and Puzzle Design, 1(1):50--55, 2015. |
| L. C. Altherr, T. Ederer, P. Pöttgen, U. Lorenz, and P. F. Pelz. Multicriterial optimization of technical systems considering multiple load and availability scenarios. In Applied Mechanics and Materials, volume 807, pages 247--256. Trans Tech Publ, 2015. |
| U. Lorenz and J. Wolf. Solving multistage quantified linear optimization problems with the alpha--beta nested benders decomposition. EURO Journal on Computational Optimization, 3(4):349--370, 2015. |
| C. Schänzle, L. C. Altherr, T. Ederer, U. Lorenz, and P. F. Pelz. As good as it can be—ventilation system design by a combined scaling and discrete optimization method. Proceedings of the FAN, 2015. |
| M. SCHWEITZER and M. SCHWEITZER. Grundlagen der betriebswirtschaftslehre unter rationalitäts-und moralitätsaspekten. Allgemeine Betriebswirtschaftslehre--Theorie und Politik des Wirtschaftens in Unternehmen, hrsg. von MARCELL SCHWEITZER und ALEXANDER BAUMEISTER, 11:3--45, 2015. |
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| 2014 |
| P. F. Pelz, U. Lorenz, and G. Ludwig. Besser geht’s nicht. TOR plant das energetisch optimale Fluidsystem, Chemie and more, 1, 2014. |
| P. Pelz, U. Lorenz, T. Ederer, M. Metzler, and P. Pöttgen. Global system optimization and scaling for turbo systems and machines. ISROMAC-15, Honolulu, USA, 2014. |
| T. Ederer, U. Lorenz, and T. Opfer. Quantified combinatorial optimization. In Operations Research Proceedings 2013, pages 121--128. Springer, 2014. |
| |
| 2013 |
| U. Lorenz, T. Opfer, and J. Wolf. Solution techniques for quantified linear programs and the links to gaming. In International Conference on Computers and Games, pages 110--124. Springer, 2013. |
| P. Letmathe, L. Petersen, and M. Schweitzer. Capacity management under uncertainty with inter-process, intra-process and demand interdependencies in high-flexibility environments. OR spectrum, 35(1):191--219, 2013. |
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| 2012 |
| P. Groche, M. Kraft, S. Schmitt, S. Calmano, U. Lorenz, and T. Ederer. Control of uncertainties in metal forming by applications of higher flexibility dimensions. In Applied Mechanics and Materials, volume 104, pages 83--93. Trans Tech Publ, 2012. |
| P. Letmathe, M. Schweitzer, and M. Zielinski. How to learn new tasks: Shop floor performance effects of knowledge transfer and performance feedback. Journal of Operations Management, 30(3):221--236, 2012. |
| J. Avemann, S. Schmitt, T. Ederer, U. Lorenz, and P. Groche. Analysis of market demand parameters for the evaluation of flexibility in forming technology. In Enabling Manufacturing Competitiveness and Economic Sustainability, pages 458--463. Springer, 2012. |
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| 2011 |
| E. Abele, M. Haydn, T. Hauer, U. Lorenz, and T. Derer. Unsicherheitsoptimierte prozesskette bei der bohrungsfeinbearbeitung-ein ansatz zur optimierung der prozesskette bohren. Reiben mittels mathematischer Modelle. wt Werkstatttechnik online, 101:730--736, 2011. |
| A. Berger, R. Hoffmann, U. Lorenz, and S. Stiller. Online railway delay management: Hardness, simulation and computation. Simulation, 87(7):616--629, 2011. |
| T. Ederer, U. Lorenz, T. Opfer, and J. Wolf. Modeling games with the help of quantified integer linear programs. In Advances in Computer Games, pages 270--281. Springer, 2011. |
| T. Ederer, U. Lorenz, A. Martin, and J. Wolf. Quantified linear programs: a computational study. In European Symposium on Algorithms, pages 203--214. Springer, 2011. |
| T. Graf, U. Lorenz, M. Platzner, and L. Schaefers. Parallel monte-carlo tree search for hpc systems. In European Conference on Parallel Processing, pages 365--376. Springer, 2011. |
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| 2010 |
| P. Groche, M. Kraft, S. SCHMITT, U. Lorenz, S. Pokutta, A. Martin, and N. Ziems. Rechnet sich flexibilität in der umformtechnik? wt werkstattstechnik online. H, 10:734--742, 2010. |
| U. Lorenz, A. Martin, and J. Wolf. Polyhedral and algorithmic properties of quantified linear programs. In European Symposium on Algorithms, pages 512--523. Springer, 2010. |
| |
| 2009 |
| R. Elsässer, U. Lorenz, and T. Sauerwald. On randomized broadcasting in star graphs. Discrete Applied Mathematics, 157(1):126--139, 2009. |
| S. Grothklags, U. Lorenz, and B. Monien. From state-of-the-art static fleet assignment to flexible stochastic planning of the future. In Algorithmics of large and complex networks, pages 140--165. Springer, 2009. |
| M. Schweitzer and M. Schweitzer. Die kostenrechnung im brennpunkt betriebswirtschaftlicher und ingenieurwissenschaftlicher gestaltungsansätze. Jahrbuch für Controlling und Rechnungswesen, pages 309--333, 2009. |
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| 2008 |
| M. Platzner, S. Döhre, M. Happe, T. Kenter, U. Lorenz, T. Schumacher, A. Send, and A. Warkentin. The gomputer: Accelerating go with fpgas. In ERSA, pages 35--45, 2008. |
| K. Himstedt, U. Lorenz, and D. P. Möller. A twofold distributed game-tree search approach using interconnected clusters. In European Conference on Parallel Processing, pages 587--598. Springer, 2008. |
| B. Monien, U. Lorenz, and D. Warner. Der alphabeta-algorithmus für spielbäume: Wie bringe ich meinen computer zum schachspielen? In Taschenbuch der Algorithmen, pages 285--294. Springer, 2008. |
| A. Berger, R. Hoffmann, U. Lorenz, and S. Stiller. Topsu-rdm a simulation platform for online railway delay management. In Proceedings of the 1st international conference on Simulation tools and techniques for communications, networks and systems & workshops, pages 1--8, 2008. |
| M. Schweitzer and M. Schweitzer. Beiträge von ingenieuren zur historischen entwicklung der kostenrechnung in deutschland im 20. jahrhundert. De Computis-Revista Española de Historia de la Contabilidad, 5(8):164--182, 2008. |
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| 2007 |
| R. Elsässer, U. Lorenz, and T. Sauerwald. Agent-based randomized broadcasting in large networks. Discrete applied mathematics, 155(2):150--160, 2007. |
| S. Grothklags, U. Lorenz, and J. Wesemann. A stochastic lot-sizing and scheduling model. In Operations Research Proceedings 2006, pages 491--496. Springer, 2007. |
| M. Von Schweitzer. Dynamische planung innovativer technologien unter berücksichtigung von erfahrungseffekten. Journal of Business Economics, 77(4):381--405, 2007. |
| L. Petersen and M. Schweitzer. Lean management für dienstleistungsprozesse. 2007. |
| |
| 2006 |
| U. Lorenz. A new implementation of error analysis in game trees. ICGA Journal, 29(2):55--64, 2006. |
| B. Doerr and U. Lorenz. Error propagation in game trees. Mathematical Methods of Operations Research, 64(1):79--93, 2006. |
| S. Grothklags and U. Lorenz. Stochastic airline fleet assignment is pspace-complete. Electronic Notes in Discrete Mathematics, 25:67--68, 2006. |
| M. Schweitzer. Zurechnungsprobleme und kontrollansätze in dynamischen lebenszyklusrechnungen. Jahrbuch Controlling und Rechnungswesen, pages 69--89, 2006. |
| S. Burlefinger, I. Mayer, L. Petersen, and M. Schweitzer. Maßnahmen und modelle zur analyse von dienstleistungsprozessen. 2006. |
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| 2005 |
| C. Donninger and U. Lorenz. Innovative opening-book handling. In Advances in computer games, pages 1--10. Springer, 2005. |
| U. Lorenz and T. Tscheuschner. Player modeling, search algorithms and strategies in multi-player games. In Advances in Computer Games, pages 210--224. Springer, 2005. |
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| 2004 |
| B. Dörig, T. Ederer, P. Hedrich, U. Lorenz, P. Pelz, and P. Pöttgen. Technical operations research (tor) exemplified by a hydrostatic power transmission system. 9th IFK, 9, 2004. |
