Clemens Thielen

ORCID

Publication Activity (10 Years)

Years Active: 2008-2024
Publications (10 Years): 43

Top Venues

University of Kaiserslautern, Germany (PHD)

Education History

University of Kaiserslautern, Germany

PHD

Publications

Jan Boeckmann, Clemens Thielen
A (B+1)-approximation for network flow interdiction with unit costs. Discret. Appl. Math. 354 (2024)
Fotios Petropoulos, Gilbert Laporte, Emel Aktas, Sibel A. Alumur, Claudia Archetti, Hayriye Ayhan, Maria Battarra, Julia A. Bennell, Jean-Marie Bourjolly, John E. Boylan, Michèle Breton, David Canca, Laurent Charlin, Bo Chen, Cihan Tugrul Cicek, Louis Anthony Cox, Christine S. M. Currie, Erik Demeulemeester, Li Ding, Stephen M. Disney, Matthias Ehrgott, Martin J. Eppler, Günes Erdogan, Bernard Fortz, L. Alberto Franco, Jens Frische, Salvatore Greco, Amanda J. Gregory, Raimo P. Hämäläinen, Willy Herroelen, Mike Hewitt, Jan Holmström, John N. Hooker, Tugçe Isik, Jill Johnes, Bahar Yetis Kara, Özlem Karsu, Katherine Kent, Charlotte Köhler, Martin H. Kunc, Yong-Hong Kuo, Adam N. Letchford, Janny Leung, Dong Li, Haitao Li, Judit Lienert, Ivana Ljubic, Andrea Lodi, Sebastián Lozano, Virginie Lurkin, Silvano Martello, Ian G. McHale, Gerald Midgley, John D. W. Morecroft, Akshay Mutha, Ceyda Oguz, Sanja Petrovic, Ulrich Pferschy, Harilaos N. Psaraftis, Sam Rose, Lauri Saarinen, Saïd Salhi, Jing-Sheng Song, Dimitrios Sotiros, Kathryn E. Stecke, Arne K. Strauss, Istenç Tarhan, Clemens Thielen, Paolo Toth, Tom Van Woensel, Greet Vanden Berghe, Christos Vasilakis, Vikrant Vaze, Daniele Vigo, Kai Virtanen, Xun Wang, Rafal Weron, Leroy White, Mike Yearworth, E. Alper Yildirim, Georges Zaccour, Xuying Zhao
Operational Research: methods and applications. J. Oper. Res. Soc. 75 (3) (2024)
Jan Boeckmann, Clemens Thielen
New Ways in Municipal Flood Mitigation: a Mixed-Integer Programming Approach and its Practical Application. Oper. Res. Forum 4 (4) (2023)
Jan Boeckmann, Clemens Thielen, Alina Wittmann
Complexity of the Temporal Shortest Path Interdiction Problem. SAND (2023)
Sebastian Rachuba, Melanie Reuter-Oppermann, Clemens Thielen
Integrated Planning in Hospitals: A Review. CoRR (2023)
Stephan Helfrich, Arne Herzel, Stefan Ruzika, Clemens Thielen
Using Scalarizations for the Approximation of Multiobjective Optimization Problems: Towards a General Theory. CoRR (2023)
Arne Herzel, Stephan Helfrich, Stefan Ruzika, Clemens Thielen
Approximating biobjective minimization problems using general ordering cones. J. Glob. Optim. 86 (2) (2023)
Cristina Bazgan, Arne Herzel, Stefan Ruzika, Clemens Thielen, Daniel Vanderpooten
Approximating Multiobjective Optimization Problems: How exact can you be? CoRR (2023)
Jan Boeckmann, Clemens Thielen, Ulrich Pferschy
Approximating single- and multi-objective nonlinear sum and product knapsack problems. Discret. Optim. 48 (Part 1) (2023)
Stephan Helfrich, Arne Herzel, Stefan Ruzika, Clemens Thielen
An approximation algorithm for a general class of multi-parametric optimization problems. J. Comb. Optim. 44 (3) (2022)
Cristina Bazgan, Stefan Ruzika, Clemens Thielen, Daniel Vanderpooten
The Power of the Weighted Sum Scalarization for Approximating Multiobjective Optimization Problems. Theory Comput. Syst. 66 (1) (2022)
Cristina Bazgan, Arne Herzel, Stefan Ruzika, Clemens Thielen, Daniel Vanderpooten
An approximation algorithm for a general class of parametric optimization problems. J. Comb. Optim. 43 (5) (2022)
Ulrich Pferschy, Joachim Schauer, Clemens Thielen
Approximating the product knapsack problem. Optim. Lett. 15 (8) (2021)
Arne Herzel, Stephan Helfrich, Stefan Ruzika, Clemens Thielen
Approximating Biobjective Minimization Problems Using General Ordering Cones. CoRR (2021)
Stephan Helfrich, Arne Herzel, Stefan Ruzika, Clemens Thielen
An Approximation Algorithm for a General Class of Multi-Parametric Optimization Problems. CoRR (2021)
Arne Herzel, Cristina Bazgan, Stefan Ruzika, Clemens Thielen, Daniel Vanderpooten
One-exact approximate Pareto sets. J. Glob. Optim. 80 (1) (2021)
Sophia Boesen, Andrea Raith, Clemens Thielen, James Tidswell
Enforcing fuel-optimal traffic patterns. EURO J. Transp. Logist. 10 (2021)
Alberto Giudici, Tao Lu, Clemens Thielen, Rob A. Zuidwijk
An Analysis of the Stability of Hinterland Container Transport Cooperation. Transp. Sci. 55 (5) (2021)
Arne Herzel, Stefan Ruzika, Clemens Thielen
Approximation Methods for Multiobjective Optimization Problems: A Survey. INFORMS J. Comput. 33 (4) (2021)
Zachary Abel, Jeffrey Bosboom, Michael J. Coulombe, Erik D. Demaine, Linus Hamilton, Adam Hesterberg, Justin Kopinsky, Jayson Lynch, Mikhail Rudoy, Clemens Thielen
Who witnesses The Witness? Finding witnesses in The Witness is hard and sometimes impossible. Theor. Comput. Sci. 839 (2020)
Arie M. C. A. Koster, Clemens Thielen
Special issue on: Computational discrete optimization. EURO J. Comput. Optim. 8 (3) (2020)
Arne Herzel, Cristina Bazgan, Stefan Ruzika, Clemens Thielen, Daniel Vanderpooten
One-Exact Approximate Pareto Sets. CoRR (2019)
Ulrich Pferschy, Joachim Schauer, Clemens Thielen
The Product Knapsack Problem: Approximation and Complexity. CoRR (2019)
Arne Herzel, Michael Hopf, Clemens Thielen
Multistage interval scheduling games. J. Sched. 22 (3) (2019)
Cristina Bazgan, Stefan Ruzika, Clemens Thielen, Daniel Vanderpooten
The Power of the Weighted Sum Scalarization for Approximating Multiobjective Optimization Problems. CoRR (2019)
Sven O. Krumke, Clemens Thielen, Philipp Weinschenk, Stephan Westphal
Full implementation of social choice functions in dominant strategies. Int. J. Game Theory 48 (1) (2019)
Cristina Bazgan, Arne Herzel, Stefan Ruzika, Clemens Thielen, Daniel Vanderpooten
An FPTAS for a General Class of Parametric Optimization Problems. COCOON (2019)
Florian D. Schwahn, Clemens Thielen
The Complexity of Escaping Labyrinths and Enchanted Forests. FUN (2018)
Hans Corsten, Michael Hopf, Benedikt Kasper, Clemens Thielen
Assortment planning for multiple chain stores. OR Spectr. 40 (4) (2018)
Michael Holzhauser, Sven O. Krumke, Clemens Thielen
Maximum flows in generalized processing networks. J. Comb. Optim. 33 (4) (2017)
Marco Bender, Clemens Thielen, Stephan Westphal
Online interval scheduling with a bounded number of failures. J. Sched. 20 (5) (2017)
Michael Holzhauser, Sven O. Krumke, Clemens Thielen
On the complexity and approximability of budget-constrained minimum cost flows. Inf. Process. Lett. 126 (2017)
Pascal Halffmann, Stefan Ruzika, Clemens Thielen, David Willems
A general approximation method for bicriteria minimization problems. Theor. Comput. Sci. 695 (2017)
Michael Holzhauser, Sven O. Krumke, Clemens Thielen
A network simplex method for the budget-constrained minimum cost flow problem. Eur. J. Oper. Res. 259 (3) (2017)
Michael Hopf, Clemens Thielen, Oliver Wendt
Competitive algorithms for multistage online scheduling. Eur. J. Oper. Res. 260 (2) (2017)
Pascal Halffmann, Stefan Ruzika, Clemens Thielen, David Willems
A General Approximation Method for Bicriteria Minimization Problems. CoRR (2017)
Alberto Giudici, Pascal Halffmann, Stefan Ruzika, Clemens Thielen
Approximation schemes for the parametric knapsack problem. Inf. Process. Lett. 120 (2017)
Michael Holzhauser, Sven O. Krumke, Clemens Thielen
On the Complexity and Approximability of Budget-Constrained Minimum Cost Flows. CoRR (2016)
Michael Holzhauser, Sven O. Krumke, Clemens Thielen
A Network Simplex Method for the Budget-Constrained Minimum Cost Flow Problem. CoRR (2016)
Hans Corsten, Michael Hopf, Benedikt Kasper, Clemens Thielen
Regionalized Assortment Planning for Multiple Chain Stores. OR (2016)
André B. Chassein, Sven O. Krumke, Clemens Thielen
Capacitated network design games with weighted players. Networks 68 (2) (2016)
Clemens Thielen, Morten Tiedemann, Stephan Westphal
The online knapsack problem with incremental capacity. Math. Methods Oper. Res. 83 (2) (2016)
Michael Holzhauser, Sven Oliver Krumke, Clemens Thielen
Budget-constrained minimum cost flows. J. Comb. Optim. 31 (4) (2016)
Michael Holzhauser, Sven Oliver Krumke, Clemens Thielen
Convex generalized flows. Discret. Appl. Math. (2015)
Isaac Hamling, Michael J. O'Sullivan, Cameron G. Walker, Clemens Thielen
Improving Resource Efficiency in Internet Cafés by Virtualization and Optimal User Allocation. UCC (2015)
Marco Bender, Clemens Thielen, Stephan Westphal
Packing items into several bins facilitates approximating the separable assignment problem. Inf. Process. Lett. 115 (6-8) (2015)
Sven Oliver Krumke, Florian D. Schwahn, Clemens Thielen
Being Negative Makes Life NP-hard (for Product Sellers). FUN (2014)
Clemens Thielen, Stephan Westphal
Complexity and approximability of the maximum flow problem with minimum quantities. Networks 62 (2) (2013)
Sven Oliver Krumke, Clemens Thielen
The generalized assignment problem with minimum quantities. Eur. J. Oper. Res. 228 (1) (2013)
Marco Bender, Clemens Thielen, Stephan Westphal
A Constant Factor Approximation for the Generalized Assignment Problem with Minimum Quantities and Unit Size Items. MFCS (2013)
Sven Oliver Krumke, Clemens Thielen
Erratum to "Minimum cost flows with minimum quantities" [Information Processing Letters 111 (11) (2011) 533-537]. Inf. Process. Lett. 112 (13) (2012)
Clemens Thielen, Stephan Westphal
Approximation algorithms for TTP(2). Math. Methods Oper. Res. 76 (1) (2012)
Clemens Thielen, Sven Oliver Krumke
Truthful Mechanisms for Selfish Routing and Two-Parameter Agents. Theory Comput. Syst. 49 (1) (2011)
Sven Oliver Krumke, Clemens Thielen
Minimum cost flows with minimum quantities. Inf. Process. Lett. 111 (11) (2011)
Clemens Thielen, Stephan Westphal
Complexity of the traveling tournament problem. Theor. Comput. Sci. 412 (4-5) (2011)
Sven Oliver Krumke, Clemens Thielen, Stephan Westphal
Interval scheduling on related machines. Comput. Oper. Res. 38 (12) (2011)
Sven Oliver Krumke, Clemens Thielen, Christiane Zeck
Extensions to online delay management on a single train line: new bounds for delay minimization and profit maximization. Math. Methods Oper. Res. 74 (1) (2011)
Clemens Thielen, Stephan Westphal
Approximating the Traveling Tournament Problem with Maximum Tour Length 2. ISAAC (2) (2010)
Clemens Thielen, Sven Oliver Krumke
Complexity of Strong Implementability ACAC (2009)
Clemens Thielen, Sven Oliver Krumke
Truthful Mechanisms for Selfish Routing and Two-Parameter Agents. SAGT (2009)
Clemens Thielen, Sven Oliver Krumke
A General Scheme for Designing Monotone Algorithms for Scheduling Problems with Precedence Constraints. WAOA (2008)

Clemens Thielen.css-eqlu8i{font-size:small;padding-left:4px;}

Publication Activity (10 Years)

Top Topics

Top Venues

Clemens Thielen