@inproceedings{7257,
  abstract     = {Solving inverse static initialization problems, in which the outputs of a process are prescribed, is often more numerically challenging than solving direct initialization problem, where inputs are fixed instead. This paper proposes the introduction of a new initialSimplified() operator in Modelica, which allows to solve inverse problems with the same reliability as direct problems, using an intuitive, straightforward Modelica formulation. The proposed solution can be trivially implemented in Modelica tools and will be 100% portable among them, once the new operator is standardized. The usefulness of the proposed approach is demonstrated on a conceptual thermal power generation plant model.},
  author       = {Casella, Francesco and Hannebohm, Philip and Pascali, Matteo Luigi De},
  booktitle    = {Proceedings of the Asian Modelica & FMI Conference Hangzhou, China, September 20-22, 2026},
  keywords     = {Modelica language, initialization, homotopy, convergence problems},
  location     = {Hangzhou, China},
  publisher    = {Linköping University Electronic Press},
  title        = {{Robust solution of inverse static problems in Modelica: the case for the initialSimplified() operator}},
  doi          = {10.3384/ecp22331},
  volume       = {223},
  year         = {2026},
}

@inproceedings{6359,
  author       = {Langenkamp, Linus and Hannebohm, Philip and Bachmann, Bernhard},
  booktitle    = {Proceedings of the 16th International Modelica&FMI Conference},
  editor       = {Zimmer, Dirk and Müller, Ulf Christian},
  keywords     = {Physics-enhanced Neural ODEs, Dynamic Optimization, Nonlinear Programming, Modelica, NeuralODEs, Universal Differential Equations},
  location     = {Luzern},
  pages        = {445 -- 457},
  publisher    = {Linköping University Electronic Press},
  title        = {{Efficient Training of Physics-enhanced Neural ODEs via Direct Collocation and Nonlinear Programming}},
  doi          = {10.3384/ecp218445},
  volume       = {218},
  year         = {2025},
}

@inproceedings{1503,
  author       = {Täuber, Patrick and Ochel, Lennart and Braun, Willi and Bachmann, Bernhard},
  booktitle    = {Proceedings of the 6th International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools - EOOLT '14},
  isbn         = {9781450329538},
  keywords     = {tearing, algebraic loop, simulation performance, tearingSelect, Modelica, OpenModelica},
  location     = {Berlin, Germany},
  pages        = {11--19},
  publisher    = {ACM Press},
  title        = {{Practical realization and adaptation of Cellier's tearing method}},
  doi          = {10.1145/2666202.2666204},
  year         = {2014},
}

@inproceedings{1523,
  author       = {Ruge, Vitalij and Braun, Willi and Bachmann, Bernhard and Walther, Andrea and Kulshreshtha, Kshitij},
  booktitle    = {Proceedings of the 10th International Modelica Conference, March 10-12, 2014, Lund, Sweden},
  isbn         = {978-91-7519-380-9},
  keywords     = {Modelica, optimization, automatic differentiation, collocation, OpenModelica, ADOL-C},
  location     = {Lund / Schweden},
  pages        = {1017--1025},
  publisher    = {Linköping University Electronic Press},
  title        = {{Efficient Implementation of Collocation Methods for Optimization using OpenModelica and ADOL-C}},
  doi          = {10.3384/ecp140961017},
  volume       = {96},
  year         = {2014},
}

@article{1509,
  author       = {Proß, Sabrina and Bachmann, Bernhard},
  issn         = {2196-7032},
  journal      = {it – Information Technology},
  keywords     = {ACM CSS→Computing methodologies→Modeling and simulation, Petri nets, Modelica, xHPN, PNlib, Hybrid Modeling},
  number       = {2},
  pages        = {55--66},
  publisher    = {Walter de Gruyter GmbH},
  title        = {{An object-oriented Petri net simulation tool for hybrid biological processes}},
  doi          = {10.1515/itit-2013-1027},
  volume       = {56},
  year         = {2014},
}

@article{1514,
  author       = {Proß, Sabrina and Bachmann, Bernhard},
  issn         = {1474-6670},
  journal      = {IFAC Proceedings Volumes},
  keywords     = {hybrid systems, process control, Petri-nets, biological processes, hybrid optimization, open-loop control, Modelica evolution strategy, Hooke-Jeeves method},
  number       = {2},
  pages        = {1041--1046},
  publisher    = {Elsevier BV},
  title        = {{Hybrid Modelling and Process Optimization of Biological Systems}},
  doi          = {10.3182/20120215-3-AT-3016.00184},
  volume       = {45},
  year         = {2012},
}

@inproceedings{1495,
  author       = {Bachmann, Bernhard and Ochel, Lennart and Ruge, Vitalij and Gebremedhin, Mahder and Fritzson, Peter and Nezhadali, Vaheed and Eriksson, Lars and Sivertsson, Martin},
  booktitle    = {Book of abstracts / 9th International Modelica Conference},
  isbn         = {978-91-7519-826-2},
  keywords     = {Modelica, Optimica, optimization, multiple shooting, collocation, parallel, simulation},
  location     = {München},
  pages        = {659--668},
  publisher    = {Linköping University Electronic Press},
  title        = {{Parallel Multiple-Shooting and Collocation Optimization with OpenModelica}},
  doi          = {10.3384/ecp12076659},
  volume       = {76},
  year         = {2012},
}