
Online isotonic regression
Wojciech Kotłowski, Wouter M. Koolen, Alan Malek
In Proceedings of the 29th Annual Conference on Learning Theory (COLT), pages 1165–1189, June 2016.

Secondorder quantile methods for experts and combinatorial games
Wouter M. Koolen, Tim van Erven
In Proceedings of the 28th Annual Conference on Learning Theory (COLT), pages 1155–1175, June 2015.

Open problem: Online sabotaged shortest path
Wouter M. Koolen, Manfred K. Warmuth, Dmitry Adamskiy
In Proceedings of the 28th Annual Conference on Learning Theory (COLT), pages 1764–1766, June 2015.

Combining initial segments of lists
Manfred K. Warmuth, Wouter M. Koolen, David P. Helmbold
Theoretical Computer Science, 519:29–45, January 2014. The special issue on Algorithmic Learning Theory for ALT 2011.

Learning a set of directions
Wouter M. Koolen, Jiazhong Nie, Manfred K. Warmuth
In Proceedings of the 26th Annual Conference on Learning Theory (COLT), June 2013.

Putting Bayes to sleep
Wouter M. Koolen, Dmitry Adamskiy, Manfred K. Warmuth
In Advances in Neural Information Processing Systems (NIPS) 25, pages 135–143, December 2012.

Learning eigenvectors for free
Wouter M. Koolen, Wojciech Kotłowski, Manfred K. Warmuth
In Advances in Neural Information Processing Systems (NIPS) 24, pages 945–953, December 2011.

Combining initial segments of lists
Manfred K. Warmuth, Wouter M. Koolen, David P. Helmbold
In Proceedings of the 22nd International Conference on Algorithmic Learning Theory (ALT), LNAI 6925, pages 219–233. Springer, October 2011.

Hedging structured concepts
Wouter M. Koolen, Manfred K. Warmuth, Jyrki Kivinen
In Proceedings of the 23rd Annual Conference on Learning Theory (COLT), pages 93–105, June 2010.