Wouter M. Koolen

1.0k total citations
36 papers, 203 citations indexed

About

Wouter M. Koolen is a scholar working on Management Science and Operations Research, Artificial Intelligence and Computer Networks and Communications. According to data from OpenAlex, Wouter M. Koolen has authored 36 papers receiving a total of 203 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Management Science and Operations Research, 26 papers in Artificial Intelligence and 8 papers in Computer Networks and Communications. Recurrent topics in Wouter M. Koolen's work include Advanced Bandit Algorithms Research (24 papers), Machine Learning and Algorithms (19 papers) and Optimization and Search Problems (7 papers). Wouter M. Koolen is often cited by papers focused on Advanced Bandit Algorithms Research (24 papers), Machine Learning and Algorithms (19 papers) and Optimization and Search Problems (7 papers). Wouter M. Koolen collaborates with scholars based in Netherlands, United States and Australia. Wouter M. Koolen's co-authors include Peter Grünwald, Manfred K. Warmuth, Jyrki Kivinen, Steven de Rooij, Tim van Erven, Martin Larsson, Johannes Ruf, Aaditya Ramdas, Steven Kelk and Peter L. Bartlett and has published in prestigious journals such as Journal of the Royal Statistical Society Series B (Statistical Methodology), Theoretical Computer Science and International Journal of Approximate Reasoning.

In The Last Decade

Wouter M. Koolen

32 papers receiving 194 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Wouter M. Koolen Netherlands 8 120 108 60 32 16 36 203
Jean‐Marie Rolin Belgium 9 56 0.5× 52 0.5× 108 1.8× 37 1.2× 5 0.3× 14 225
Hock Peng Chan Singapore 11 71 0.6× 79 0.7× 104 1.7× 9 0.3× 25 1.6× 26 231
Fernando V. Bonassi United States 3 107 0.9× 11 0.1× 81 1.4× 15 0.5× 10 0.6× 4 169
Hei Chan United States 7 148 1.2× 36 0.3× 22 0.4× 17 0.5× 9 0.6× 12 187
Chang-Han Rhee United States 5 60 0.5× 55 0.5× 115 1.9× 3 0.1× 7 0.4× 12 205
Steven de Rooij Netherlands 9 118 1.0× 49 0.5× 25 0.4× 21 0.7× 16 1.0× 18 162
H. Papageorgiou Greece 9 134 1.1× 59 0.5× 183 3.0× 12 0.4× 6 0.4× 45 260
Antti Hyttinen Finland 9 163 1.4× 38 0.4× 38 0.6× 19 0.6× 37 2.3× 29 237
Pascal Lezaud France 6 29 0.2× 37 0.3× 73 1.2× 15 0.5× 7 0.4× 9 157
Alexander A. Georgiev Poland 9 100 0.8× 139 1.3× 151 2.5× 2 0.1× 8 0.5× 16 289

Countries citing papers authored by Wouter M. Koolen

Since Specialization
Citations

This map shows the geographic impact of Wouter M. Koolen'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 Wouter M. Koolen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Wouter M. Koolen more than expected).

Fields of papers citing papers by Wouter M. Koolen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Wouter M. Koolen. 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 Wouter M. Koolen. The network helps show where Wouter M. Koolen may publish in the future.

Co-authorship network of co-authors of Wouter M. Koolen

This figure shows the co-authorship network connecting the top 25 collaborators of Wouter M. Koolen. A scholar is included among the top collaborators of Wouter M. Koolen 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 Wouter M. Koolen. Wouter M. Koolen 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.
Grünwald, Peter & Wouter M. Koolen. (2025). Supermartingales for one-sided tests: Sufficient monotone likelihood ratios are sufficient. Statistics & Probability Letters. 229. 110574–110574.
2.
Grünwald, Peter, et al.. (2024). Safe testing. Journal of the Royal Statistical Society Series B (Statistical Methodology). 86(5). 1091–1128. 22 indexed citations
3.
Ruf, Johannes, Martin Larsson, Wouter M. Koolen, & Aaditya Ramdas. (2023). A composite generalization of Ville’s martingale theorem using e-processes. Electronic Journal of Probability. 28(none). 1 indexed citations
4.
Ramdas, Aaditya, Johannes Ruf, Martin Larsson, & Wouter M. Koolen. (2021). Testing exchangeability: Fork-convexity, supermartingales and e-processes. International Journal of Approximate Reasoning. 141. 83–109. 22 indexed citations
5.
Erven, Tim van, et al.. (2021). Robust Online Convex Optimization in the Presence of Outliers. Conference on Learning Theory. 4174–4194. 2 indexed citations
6.
Erven, Tim van, et al.. (2020). Open problem: Fast and optimal online portfolio selection. Conference on Learning Theory. 3864–3869. 1 indexed citations
7.
Koolen, Wouter M., et al.. (2019). Pure Exploration with Multiple Correct Answers. Centrum Wiskunde & Informatica (CWI), the national research institute for mathematics and computer science in the Netherlands. 32. 14564–14573. 1 indexed citations
8.
Kotłowski, Wojciech, et al.. (2017). Random Permutation Online Isotonic Regression. Centrum Wiskunde & Informatica (CWI), the national research institute for mathematics and computer science in the Netherlands. 30. 4180–4189. 1 indexed citations
9.
Kotłowski, Wojciech, et al.. (2016). Online Isotonic Regression. Conference on Learning Theory. 49. 1165–1189. 1 indexed citations
10.
Koolen, Wouter M., et al.. (2016). Robust probability updating. International Journal of Approximate Reasoning. 74. 30–57. 1 indexed citations
11.
Bartlett, Peter L., et al.. (2015). Minimax fixed-design linear regression. Centrum Wiskunde & Informatica (CWI), the national research institute for mathematics and computer science in the Netherlands. 40(2015). 226–239. 4 indexed citations
12.
Koolen, Wouter M., et al.. (2015). Minimax time series prediction. QUT ePrints (Queensland University of Technology). 28. 2557–2565. 5 indexed citations
13.
Koolen, Wouter M., et al.. (2015). Open Problem: Online Sabotaged Shortest Path. Conference on Learning Theory. 1764–1766. 2 indexed citations
14.
Koolen, Wouter M. & Tim van Erven. (2015). Second-order quantile methods for experts and combinatorial games. QUT ePrints (Queensland University of Technology). 1155–1175. 4 indexed citations
15.
Warmuth, Manfred K. & Wouter M. Koolen. (2014). Open problem: Shifting experts on easy data. QUT ePrints (Queensland University of Technology). 3 indexed citations
16.
Koolen, Wouter M., Tim van Erven, & Peter Grünwald. (2014). Learning the Learning Rate for Prediction with Expert Advice. QUT ePrints (Queensland University of Technology). 27. 2294–2302. 3 indexed citations
17.
Koolen, Wouter M. & Steven de Rooij. (2013). Universal codes from switching strategies. Data Archiving and Networked Services (DANS). 5 indexed citations
18.
Koolen, Wouter M.. (2013). The Pareto Regret Frontier. QUT ePrints (Queensland University of Technology). 26. 863–871. 5 indexed citations
19.
Warmuth, Manfred K., et al.. (2012). Putting Bayes to sleep. Neural Information Processing Systems. 25. 135–143. 10 indexed citations
20.
Erven, Tim van, Wouter M. Koolen, Steven de Rooij, & Peter Grünwald. (2011). Adaptive Hedge. neural information processing systems. 24. 1656–1664. 8 indexed citations

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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