Stephan Westphal

37 papers A* 1B 2C 2Journal 25Unranked 6
YearRankTypeTitle / Venue / Authors
2022 J jnl
Oblique decision tree induction by cross-entropy optimization based on the von Mises-Fisher distribution.
Comput. Stat.
Ferdinand Bollwein, Stephan Westphal
2021 J jnl
A branch & bound algorithm to determine optimal bivariate splits for oblique decision tree induction.
Appl. Intell.
Ferdinand Bollwein, Stephan Westphal
2021 — conf
An Auction-based Mechanism for the Formation and Scheduling of Heterogeneous Human-machine Teams.
IEEM
Felix Merz, Christoph Schwindt, Stephan Westphal, Jürgen Zimmermann
2020 — conf
A Multi-Round Auction for Staff to Job Assignment Under Myopic Best Response Dynamics.
IEEM
Felix Merz, Christoph Schwindt, Stephan Westphal, Jürgen Zimmermann
2020 J jnl
A branch & bound algorithm to determine optimal cross-splits for decision tree induction.
Ann. Math. Artif. Intell.
Ferdinand Bollwein, Martin Dahmen, Stephan Westphal
2020 J jnl
Engineering Human-Machine Teams for Trusted Collaboration.
Big Data Cogn. Comput.
Basel Alhaji, Janine Beecken, Rüdiger Ehlers, Jan Gertheiss, Felix Merz, Jörg P. Müller, Michael Prilla, Andreas Rausch, Andreas Reinhardt, Delphine Reinhardt, Christian Rembe, Niels-Ole Rohweder, Christoph Schwindt, Stephan Westphal, Jürgen Zimmermann
2019 C conf
Cross-provider Platoons for Same-day Delivery.
VEHITS
Sînziana-Maria Sebe, Philipp Kraus, Jörg P. Müller, Stephan Westphal
2019 J jnl
Full implementation of social choice functions in dominant strategies.
Int. J. Game Theory
Sven O. Krumke, Clemens Thielen, Philipp Weinschenk, Stephan Westphal
2017 J jnl
Online interval scheduling with a bounded number of failures.
J. Sched.
Marco Bender, Clemens Thielen, Stephan Westphal
2016 — conf
A column generation approach for optimized routing and coordination of a UAV fleet.
SSRR
Julia Zillies, Stephan Westphal, Dinesh Thakur, Vijay Kumar, George J. Pappas, David Scheidt
2016 J jnl
A combined local search and integer programming approach to the traveling tournament problem.
Ann. Oper. Res.
Marc Goerigk, Stephan Westphal
2016 J jnl
The online knapsack problem with incremental capacity.
Math. Methods Oper. Res.
Clemens Thielen, Morten Tiedemann, Stephan Westphal
2015 J jnl
An application of deterministic and robust optimization in the wood cutting industry.
4OR
Jonas Ide, Morten Tiedemann, Stephan Westphal, Felix Haiduk
2015 J jnl
An optimal randomized online algorithm for the k-Canadian Traveller Problem on node-disjoint paths.
J. Comb. Optim.
Marco Bender, Stephan Westphal
2015 J jnl
Packing items into several bins facilitates approximating the separable assignment problem.
Inf. Process. Lett.
Marco Bender, Clemens Thielen, Stephan Westphal
2014 J jnl
A 5.875-approximation for the Traveling Tournament Problem.
Ann. Oper. Res.
Stephan Westphal, Karl Noparlik
2014 C conf
Maximum Generalized Assignment with Convex Costs.
ISCO
Marco Bender, Stephan Westphal
2014 J jnl
Scheduling the German Basketball League.
Interfaces
Stephan Westphal
2014 A* conf
Solving the Traveling Tournament Problem by Packing Three-Vertex Paths.
AAAI
Marc Goerigk, Richard Hoshino, Ken-ichi Kawarabayashi, Stephan Westphal
2013 B conf
A Constant Factor Approximation for the Generalized Assignment Problem with Minimum Quantities and Unit Size Items.
MFCS
Marco Bender, Clemens Thielen, Stephan Westphal
2013 J jnl
Complexity and approximability of the maximum flow problem with minimum quantities.
Networks
Clemens Thielen, Stephan Westphal
2013 — conf
Online Job Admission.
Fundamental Problems in Computing
Sven O. Krumke, Rob van Stee, Stephan Westphal
2013 — ch.
Sports Scheduling: Minimizing Travel for English Football Supporters.
Automated Scheduling and Planning
Graham Kendall, Stephan Westphal
2012 J jnl
Approximation algorithms for TTP(2).
Math. Methods Oper. Res.
Clemens Thielen, Stephan Westphal
2011 J jnl
Complexity of the traveling tournament problem.
Theor. Comput. Sci.
Clemens Thielen, Stephan Westphal
2011 J jnl
Interval scheduling on related machines.
Comput. Oper. Res.
Sven Oliver Krumke, Clemens Thielen, Stephan Westphal
2011 — conf
MIP Formulations for Flowshop Scheduling with Limited Buffers.
TAPAS
Janick V. Frasch, Sven Oliver Krumke, Stephan Westphal
2011 J jnl
Online scheduling of weighted equal-length jobs with hard deadlines on parallel machines.
Comput. Oper. Res.
Sven Oliver Krumke, Alfred Taudes, Stephan Westphal
2010 — conf
Approximating the Traveling Tournament Problem with Maximum Tour Length 2.
ISAAC (2)
Clemens Thielen, Stephan Westphal
2009 J jnl
New lower bounds for online k-server routing problems.
Inf. Process. Lett.
Irene Fink, Sven Oliver Krumke, Stephan Westphal
2008 J jnl
A monotone approximation algorithm for scheduling with precedence constraints.
Oper. Res. Lett.
Sven Oliver Krumke, Anne Schwahn, Rob van Stee, Stephan Westphal
2008 J jnl
A note on the k-Canadian Traveller Problem.
Inf. Process. Lett.
Stephan Westphal
2008 J jnl
Approximation algorithms for a vehicle routing problem.
Math. Methods Oper. Res.
Sven Oliver Krumke, Sleman Saliba, Tjark Vredeveld, Stephan Westphal
2008 B conf
Improved Construction Heuristics and Iterated Local Search for the Routing and Wavelength Assignment Problem.
EvoCOP
Kerstin Bauer, Thomas Fischer, Sven Oliver Krumke, Katharina Gerhardt, Stephan Westphal, Peter Merz
2008 J jnl
Pruning in column generation for service vehicle dispatching.
Ann. Oper. Res.
Stephan Westphal, Sven Oliver Krumke
2006 J jnl
Competitive Algorithms for Cottage Rental.
Electron. Notes Discret. Math.
Stephan Westphal, Sven Oliver Krumke, Rob van Stee
2006 J jnl
Online-Optimization of Large-Scale Vehicle Dispatching Problems.
Electron. Notes Discret. Math.
Sleman Saliba, Sven Oliver Krumke, Stephan Westphal