Stefan's page

Gamrath, Gerald, Anderson, Daniel, Bestuzheva, Ksenia, Chen, Wei-Kun, Eifler, Leon, Gasse, Maxime, Gemander, Patrick, Gleixner, Ambros, Gottwald, Leona, Halbig, Katrin, Hendel, Gregor, Hojny, Christopher, Koch, Thorsten, Bodic, Pierre Le, Maher, Stephen J., Matter, Frederic, Miltenberger, Matthias, Mühmer, Erik, Müller, Benjamin, Pfetsch, Marc, Schlösser, Franziska, Serrano, Felipe, Shinano, Yuji, Tawfik, Christine, V., S., Wegscheider, Fabian, Weninger, Dieter, and Witzig, Jakob, The SCIP Optimization Suite 7.0, Tech. Rep. 20-10, Zuse Institute Berlin, 2020.

Furini, Fabio, Traversi, Emiliano, Belotti, Pietro, Frangioni, Antonio, Gleixner, Ambros, Gould, Nick, Liberti, Leo, Lodi, Andrea, Misener, Ruth, Mittelmann, Hans, Sahinidis, Nikolaos V., V., S., and Wiegele, Angelika, QPLIB: a library of quadratic programming instances, Mathematical Programming Computation, 11:2, 2019, 237-265. Preprint.

Gleixner, Ambros, Eifler, Leon, Gally, Tristan, Gamrath, Gerald, Gemander, Patrick, Gottwald, Robert Lion, Hendel, Gregor, Hojny, Christopher, Koch, Thorsten, Miltenberger, Matthias, Müller, Benjamin, Pfetsch, Marc E., Puchert, Christian, Rehfeldt, Daniel, Schlösser, Franziska, Serrano, Felipe, Shinano, Yuji, Viernickel, Jan Merlin, V., S., Weninger, Dieter, Witt, Jonas T., and Witzig, Jakob, The SCIP Optimization Suite 5.0, Tech. Rep. 17-61, Zuse Institute Berlin, 2017.

Müller, Benjamin, Kuhlmann, Renke, and V., S., On the performance of NLP solvers within global MINLP solvers, Tech. Rep. 17-35, Zuse Institute Berlin, 2017.

Bernal, David E., V., S., Trespalacios, Francisco, and Grossmann, Ignacio E., Improving the performance of DICOPT in convex MINLP problems using a feasibility pump, Optimization Methods and Software, 35:1, 2020, 171-190. Preprint.

V., S. and Gleixner, Ambros, SCIP: global optimization of mixed-integer nonlinear programs in a branch-and-cut framework, Optimization Methods and Software, 33:3, 2017, 563-593. Preprint.

Gamrath, Gerald, Fischer, Tobias, Gally, Tristan, Gleixner, Ambros M., Hendel, Gregor, Koch, Thorsten, Maher, Stephen J., Miltenberger, Matthias, Müller, Benjamin, Pfetsch, Marc E., Puchert, Christian, Rehfeldt, Daniel, Schenker, Sebastian, Schwarz, Robert, Serrano, Felipe, Shinano, Yuji, V., S., Weninger, Dieter, Winkler, Michael, Witt, Jonas T., and Witzig, Jakob, The SCIP Optimization Suite 3.2, Tech. Rep. 15-60, Zuse Institute Berlin, 2016.

D'Ambrosio, Claudia, Fampa, Marcia, Lee, Jon, and V., S., On a nonconvex MINLP formulation of the Euclidean Steiner tree problems in n-space, Tech. Rep., 2015.

Arnold, Thomas, Berthold, Timo, Heinz, Stefan, V., S., Henrion, René, Grötschel, Martin, Koch, Thorsten, Tischendorf, Caren, and Römisch, Werner, A Jack of all trades? Solving stochastic mixed-integer nonlinear constraint programs. In Deuflhard, Peter, Grötschel, Martin, Hömberg, Dietmar, Horst, Ulrich, Kramer, Jürg, Mehrmann, Volker, Polthier, Konrad, Schmidt, Frank, Schütte, Christof, Skutella, Martin, and Sprekels, Jürgen, Eds, Matheon - Mathematics for Key Technologies, EMS Series in Industrial and Applied Mathematics, 1, European Mathematical Society, 2014, 135-146.

Arnold, Thomas, Henrion, René, Möller, Andris, and V., S., A mixed-integer stochastic nonlinear optimization problem with joint probabilistic constraints, Pacific Journal of Optimization, 10:1, 2014, 5-20. Preprint.

Shinano, Yuji, Heinz, Stefan, V., S., and Winkler, Michael, FiberSCIP - A shared memory parallelization of SCIP, INFORMS Journal on Computing, 30:1, 2017, to appear. Preprint.

Bussieck, Michael R, Dirkse, Steven P, and V., S., PAVER 2.0: An Open Source Environment for Automated Performance Analysis of Benchmarking Data, Journal of Global Optimization, 59:2-3, 2014, 259-275. Preprint.

Shinano, Yuji, Achterberg, Tobias, Berthold, Timo, Heinz, Stefan, Koch, Thorsten, V., S., and Winkler, Michael, 制約整数計画ソルバSCIPの並列化. In Ikeda, Shiro and Ito, Satoshi, Eds, Proceedings of the Institute of Statistical Mathematics, 61, Institute of Statistical Mathematics, 2013, 47-78. Preprint.

Ballerstein, Martin, Michaels, Dennis, and V., S., Linear Underestimators for bivariate functions with a fixed convexity behavior, Tech. Rep. 13-02, Zuse Institute Berlin, 2015. Revised version.

Pfetsch, Marc E, Fügenschuh, Armin, Geißler, Björn, Geißler, Nina, Gollmer, Ralf, Hiller, Benjamin, Humpola, Jesco, Koch, Thorsten, Lehmann, Thomas, Martin, Alexander, Morsi, Antonio, Rövekamp, Jessica, Schewe, Lars, Schmidt, Martin, Schultz, Rüdiger, Schwarz, Robert, Schweiger, Jonas, Stangl, Claudia, Steinbach, Marc C, V., S., and Willert, Bernhard M, Validation of Nominations in Gas Network Optimization: Models, Methods, and Solutions, Tech. Rep. 12-41, Zuse Institute Berlin, 2012.

Gleixner, Ambros M, Held, Harald, Huang, Wei, and V., S., Towards globally optimal operation of water supply networks, Numerical Algebra, Control and Optimization, 2:4, 2012, 695-711.

Berthold, Timo, Gleixner, Ambros M, Heinz, Stefan, and V., S., Analyzing the computational impact of MIQCP solver components, Numerical Algebra, Control and Optimization, 2:4, 2012, 739-748. Preprint.

Bley, Andreas, Gleixner, Ambros M, Koch, Thorsten, and V., S., Comparing MIQCP Solvers to a Specialised Algorithm for Mine Production Scheduling. In Bock, Hans Georg, Hoang, Xuan Phu, Rannacher, Rolf, and Schlöder, Johannes P, Eds, Comparing MIQCP Solvers to a Specialised Algorithm for Mine Production Scheduling, Springer Berlin Heidelberg, 2012, 25-39. Preprint.

Berthold, Timo, Heinz, Stefan, and V., S., Extending a CIP framework to solve MIQCPs. In Lee, Jon and Leyffer, Sven, Eds, Mixed Integer Nonlinear Programming, Springer, 2012, 427-444. Preprint.

Berthold, Timo, Heinz, Stefan, Pfetsch, Marc E, and V., S., Large Neighborhood Search beyond MIP. In Gaspero, Luca Di, Schaerf, Andrea, and Stützle, Thomas, Eds, Proceedings of the 9th Metaheuristics International Conference (MIC 2011), 2011, 51-60.

Bodirsky, Manuel, Fusy, Éric, Kang, Mihyun, and V., S., Boltzmann Samplers, Pólya Theory, and Cycle Pointing, SIAM Journal on Computing, 40:3, 2011, 721-769. Preprint.

Fügenschuh, Armin, Homfeld, Henning, Schülldorf, Hanno, and V., S., Mixed-Integer Nonlinear Problems in Transportation Applications. In Rodrigues, Hélder, Ed, Proceedings of the 2nd International Conference on Engineering Optimization, 2010.

Bussieck, Michael R and V., S., MINLP Solver Software. In Cochran, James J, Cox, Jr, Louis Anthony, Keskinocak, Pinar, Kharoufeh, Jeffrey P, and Smith, J Cole, Eds, Wiley Encyclopedia of Operations Research and Management Science, Wiley & Sons, Inc., 2010. Latest Version.

Berthold, Timo, Gleixner, Ambros M, Heinz, Stefan, and V., S., On the computational impact of MIQCP solver components, Tech. Rep. 11-01, Zuse Institute Berlin, 2010.

Neun, Winfried, Sturm, Thomas, and V., S., Supporting Global Numerical Optimization of Rational Functions by Generic Symbolic Convexity Tests. In Gerdt, Vladimir P, Koepf, Wolfram, Mayr, Ernst W, and Vorozhtsov, Evgenii H, Eds, Computer Algebra in Scientific Computing, Springer, 2010, 205-219. Preprint.

Berthold, Timo, Gleixner, Ambros M, Heinz, Stefan, and V., S., Extending SCIP for solving MIQCPs. In Bonami, Pierre, Liberti, Leo, Miller, Andrew J, and Sartenaer, Annick, Eds, Proceedings of the European Workshop on Mixed Integer Nonlinear Programming, 2010, 181-196.

Ahadi-Oskui, Turang, V., S., Nowak, Ivo, and Tsatsaronis, George, Optimizing the design of complex energy conversion systems by Branch and Cut, Computers and Chemical Engineering, 34:8, 2010, 1226-1236. Preprint.

Küchler, Christian and V., S., Numerical Evaluation of Approximation Methods in Stochastic Programming, Optimization, 59:3, 2010, 401-415. Preprint.

Römisch, Werner and V., S., Recent progress in two-stage mixed-integer stochastic programming with applications in power production planning. In Rebennack, Steffen, Pardalos, Panos M, Pereira, Mario V F, and Iliadis, Niko A, Eds, Handbook of Power Systems I, Springer, 2010, 177-208. Preprint.

Küchler, Christian and V., S., Ein Dekompositionsverfahren für stochastische Optimierungsprobleme mit rekombinierenden Szenariobäumen. Chapter 10 in Schultz, Rüdiger and Wagner, Hermann-Josef, Eds, Innovative Modellierung und Optimierung von Energiesystemen, LIT Verlag, 2009, 201-226.

Jüdes, Marc, Tsatsaronis, George, and V., S., Optimization of the Design and Partial-Load Operation of Power Plants using Mixed-Integer Nonlinear Programming. Chapter 9 in Kallrath, Josef, Pardalos, Panos M, Rebennack, Steffen, and Scheidt, Max, Eds, Optimization in the Energy Industry, Springer, 2009, 193-220. Preprint.

Epe, Alexa, Küchler, Christian, Römisch, Werner, V., S., Wagner, Hermann-Josef, Weber, Christoph, and Woll, Oliver, Optimization of Dispersed Energy Supply - Stochastic Programming with Recombining Scenario Trees. Chapter 15 in Kallrath, Josef, Pardalos, Panos M, Rebennack, Steffen, and Scheidt, Max, Eds, Optimization in the Energy Industry, Springer, 2009, 347-364. Preprint.

Epe, Alexa, Küchler, Christian, Römisch, Werner, V., S., Wagner, Hermann-Josef, Weber, Christoph, and Woll, Oliver, Ökonomische Bewertung von elektrischen Energiespeichern - Ausbau und Betrieb im Kontext wachsender Windenergieerzeugung. Chapter 7 in Schultz, Rüdiger and Wagner, Hermann-Josef, Eds, Innovative Modellierung und Optimierung von Energiesystemen, LIT Verlag, 2009, 135-152.

Nowak, Ivo and V., S., LaGO: a (heuristic) Branch and Cut algorithm for nonconvex MINLPs, Central European Journal of Operations Research, 16:2, 2008, 127-138. Preprint.

Römisch, Werner and V., S., Quantitative stability of fully random mixed-integer two-stage stochastic programs, Optimization Letters, 2:3, 2008, 377-388. Preprint.

Epe, Alexa, Küchler, Christian, Römisch, Werner, V., S., Wagner, Hermann-Josef, Weber, Christoph, and Woll, Oliver, Stochastische Optimierung mit rekombinierenden Szenariobäumen - Analyse dezentraler Energieversorgung mit Windenergie und Speichern. In Optimierung in der Energiewirtschaft, VDI-Berichte, 2018, VDI-Verlag, Düsseldorf, 2007, 3-13.

Küchler, Christian and V., S., Decomposition of Multistage Stochastic Programs with Recombining Scenario Trees, Stochastic Programming E-Print Series, 2007-09, 2007.

Jüdes, Marc, Tsatsaronis, George, and V., S., Entwurfsoptimierung von Energieumwandlungsanlagen mit mehreren Betriebspunkten. In Optimierung in der Energiewirtschaft, VDI-Berichte, 2018, VDI-Verlag, Düsseldorf, 2007, 199-210.

Nowak, Ivo and V., S., Adaptive discretization of convex multistage stochastic programs, Mathematical Methods of Operations Research, 65:2, 2007, 361-383. Preprint.

Bodirsky, Manuel, Fusy, Éric, Kang, Mihyun, and V., S., Enumeration and asymptotic properties of unlabeled outerplanar graphs, Electronic Journal of Combinatorics, 14:1, 2007, R66. Earlier but longer version.

V., S., Adaptive discretization of stochastic programs, Masters thesis, Humboldt-University Berlin, 2005. German version.

V., S., Asymptotic enumeration of unlabelled outerplanar graphs, Masters thesis, Humboldt-University Berlin, 2005.

V., S., Random Outerplanar Graphs, 2005. Seminar paper.

Nowak, Ivo, Alperin, Hernán, and V., S., LaGO - An object oriented library for solving MINLPs. In Bliek, Christian, Jermann, Christophe, and Neumaier, Arnold, Eds, Global Optimization and Constraint Satisfaction, Springer, 2003, 32-42. Preprint.

(bibfile, Google Scholar profile)

Selected talks:

07/2018: Revising the handling of nonlinear constraints in SCIP
International Symposium on Mathematical Programming, Bordeaux, France
10/2017: MINLP Solver Technology
The Institute of Statistical Mathematics, Hiroshima University, NTT Data, Kyoto University, National University of Singapore
07/2015: (MI)NLPLib 2
International Symposium on Mathematical Programming, Pittsburgh, U.S.A.
12/2017 (Update): MINLP solvers version-to-version comparison
03/2015: MINLP Solver Technology
Mixed-Integer Nonlinear Optimization Methods for Energy Systems Engineering, Aachen, Germany
07/2014: Analyzing the computational impact of individual MINLP solver components
Mixed-Integer Programming Workshop (MIP), Columbus, OH, U.S.A.
08/2012: Solving MINLPs with SCIP
International Symposium on Mathematical Programming, Berlin, Germany
09/2009: Extending a CIP framework for solving mixed-integer nonlinear programs
International Symposium on Mathematical Programming, Chicago, U.S.A.
02/2008: Decomposition Algorithms for Stochastic Mixed-Integer Linear Programs (Literature Overview)
Forschungsseminar, Humboldt-Universität zu Berlin, Germany
09/2007: Decomposition of Multistage Stochastic Programs with Recombining Scenario Trees
Operations Research 2007 conference, Saarbücken, Germany
11/2005: Asymptotic Enumeration of Unlabelled Outerplanar Graphs
Forschungsseminar, Humboldt-Universität zu Berlin, Germany

Poster:

Matheon B20: Optimization of gas transport (March 2011)
Extending SCIP for solving MIQCPs
European Workshop on Mixed Integer Nonlinear Programming (April 2010), Marseille

Notes:

GAMS: Subversion+Trac to GitLab conversion: write-up and script

Old links:

meine Vorlesungsmitschriften (in german)
Kuchen: die Freitag Nachmittag Kuchenrunde