Stephan Westphal

501 total citations
32 papers, 268 citations indexed

About

Stephan Westphal is a scholar working on Industrial and Manufacturing Engineering, Management Science and Operations Research and Computer Networks and Communications. According to data from OpenAlex, Stephan Westphal has authored 32 papers receiving a total of 268 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Industrial and Manufacturing Engineering, 15 papers in Management Science and Operations Research and 13 papers in Computer Networks and Communications. Recurrent topics in Stephan Westphal's work include Optimization and Search Problems (11 papers), Vehicle Routing Optimization Methods (10 papers) and Scheduling and Timetabling Solutions (8 papers). Stephan Westphal is often cited by papers focused on Optimization and Search Problems (11 papers), Vehicle Routing Optimization Methods (10 papers) and Scheduling and Timetabling Solutions (8 papers). Stephan Westphal collaborates with scholars based in Germany, Austria and Netherlands. Stephan Westphal's co-authors include Clemens Thielen, Sven O. Krumke, Marc Goerigk, Jonas Ide, Jutta Geldermann, Matthias Schümann, Waldemar Toporowski, Holger Militz, Andreas Krause and Carsten Mai and has published in prestigious journals such as Journal of Cleaner Production, Computers & Operations Research and Annals of Operations Research.

In The Last Decade

Stephan Westphal

29 papers receiving 260 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Stephan Westphal Germany 10 143 113 94 35 28 32 268
Tom Wanyama Canada 9 102 0.7× 29 0.3× 29 0.3× 12 0.3× 3 0.1× 26 272
Ľuboslav Dulina Slovakia 13 199 1.4× 33 0.3× 12 0.1× 21 0.6× 9 0.3× 37 346
Reinaldo Moraga United States 10 233 1.6× 34 0.3× 44 0.5× 11 0.3× 2 0.1× 31 387
Alexandre Ferreira de Pinho Brazil 9 112 0.8× 94 0.8× 7 0.1× 35 1.0× 4 0.1× 38 305
Patrik Grznár Slovakia 13 279 2.0× 29 0.3× 10 0.1× 26 0.7× 12 0.4× 41 415
Sergey Shebalov United States 7 161 1.1× 82 0.7× 21 0.2× 57 1.6× 11 347
Rúben Costa Portugal 10 42 0.3× 25 0.2× 33 0.4× 10 0.3× 8 0.3× 36 282
Marco Ghirardi Italy 11 294 2.1× 15 0.1× 104 1.1× 23 0.7× 7 0.3× 31 471
Alireza Rashidi Komijan Iran 11 135 0.9× 170 1.5× 6 0.1× 12 0.3× 3 0.1× 40 350
César Analide Portugal 10 18 0.1× 17 0.2× 48 0.5× 14 0.4× 12 0.4× 36 248

Countries citing papers authored by Stephan Westphal

Since Specialization
Citations

This map shows the geographic impact of Stephan Westphal's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Stephan Westphal with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Stephan Westphal more than expected).

Fields of papers citing papers by Stephan Westphal

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stephan Westphal. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Stephan Westphal. The network helps show where Stephan Westphal may publish in the future.

Co-authorship network of co-authors of Stephan Westphal

This figure shows the co-authorship network connecting the top 25 collaborators of Stephan Westphal. A scholar is included among the top collaborators of Stephan Westphal based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Stephan Westphal. Stephan Westphal is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Westphal, Stephan, et al.. (2025). Integrative and Integrated product and production system development: a taxonomy for managing dependencies and processes. Proceedings of the Design Society. 5. 2121–2130.
2.
Schwindt, Christoph, et al.. (2021). An Auction-based Mechanism for the Formation and Scheduling of Heterogeneous Human-machine Teams. 2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM). 43. 863–868. 1 indexed citations
3.
Schwindt, Christoph, et al.. (2020). A Multi-Round Auction for Staff to Job Assignment Under Myopic Best Response Dynamics. 1137–1141. 2 indexed citations
4.
Müller, Jörg P., et al.. (2019). Cross-provider Platoons for Same-day Delivery. 106–116. 2 indexed citations
5.
Thielen, Clemens, et al.. (2017). Online interval scheduling with a bounded number of failures. Journal of Scheduling. 20(5). 443–457. 3 indexed citations
6.
Westphal, Stephan, et al.. (2016). A combined approximation for the traveling tournament problem and the traveling umpire problem. Journal of Quantitative Analysis in Sports. 12(3). 1 indexed citations
7.
Westphal, Stephan, et al.. (2016). A column generation approach for optimized routing and coordination of a UAV fleet. elib (German Aerospace Center). 350–357. 6 indexed citations
8.
Thielen, Clemens, et al.. (2015). The online knapsack problem with incremental capacity. Mathematical Methods of Operations Research. 83(2). 207–242. 7 indexed citations
9.
Goerigk, Marc, et al.. (2014). Solving the Traveling Tournament Problem by Packing Three-Vertex Paths. Proceedings of the AAAI Conference on Artificial Intelligence. 28(1). 9 indexed citations
10.
Goerigk, Marc & Stephan Westphal. (2014). A combined local search and integer programming approach to the traveling tournament problem. Annals of Operations Research. 239(1). 343–354. 9 indexed citations
11.
Westphal, Stephan. (2014). Scheduling the German Basketball League. INFORMS Journal on Applied Analytics. 44(5). 498–508. 13 indexed citations
12.
Westphal, Stephan, et al.. (2013). An optimal randomized online algorithm for the $$k$$ k -Canadian Traveller Problem on node-disjoint paths. Journal of Combinatorial Optimization. 30(1). 87–96. 14 indexed citations
13.
Thielen, Clemens & Stephan Westphal. (2013). Complexity and approximability of the maximum flow problem with minimum quantities. Networks. 62(2). 125–131. 3 indexed citations
14.
Krumke, Sven O., Clemens Thielen, & Stephan Westphal. (2011). Interval scheduling on related machines. Computers & Operations Research. 38(12). 1836–1844. 19 indexed citations
15.
Thielen, Clemens & Stephan Westphal. (2010). Complexity of the traveling tournament problem. Theoretical Computer Science. 412(4-5). 345–351. 33 indexed citations
16.
Krumke, Sven O., Alfred Taudes, & Stephan Westphal. (2010). Online scheduling of weighted equal-length jobs with hard deadlines on parallel machines. Computers & Operations Research. 38(8). 1103–1108. 3 indexed citations
17.
Krumke, Sven O., et al.. (2009). New lower bounds for online k-server routing problems. Information Processing Letters. 109(11). 563–567. 4 indexed citations
18.
Krumke, Sven O., et al.. (2007). A monotone approximation algorithm for scheduling with precedence constraints. Operations Research Letters. 36(2). 247–249. 1 indexed citations
19.
Westphal, Stephan & Sven O. Krumke. (2007). Pruning in column generation for service vehicle dispatching. Annals of Operations Research. 159(1). 355–371. 11 indexed citations
20.
Krumke, Sven O., et al.. (2006). Online-Optimization of Large-Scale Vehicle Dispatching Problems. Electronic Notes in Discrete Mathematics. 25. 145–146.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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