Description
Leader of the group Machine Learning: Peter Grünwald.
Our research group focuses on how computer programs can learn from and understand data, and then make useful predictions based on it. These algorithms integrate insights from various fields, including statistics, artificial intelligence and neuroscience.
Machine-learning applications are increasingly part of every aspect of life, from speech recognition on cell phones to illness prediction in healthcare. One common problem is extremely polluted data, for which no single model can provide adequate explanations. At CWI we address this issue with statistical machine learning based on combining predictions from different models and experts in order to achieve reliable conclusions.
We also study how networks of neurons in the brain process information, and how modern deep-learning methods can benefit from neuroscience. We develop novel neural networks, like Deep Adaptive Spiking Neural Networks, and also theoretical models of neural learning and information processing in biology. Applications of our work range from low-energy consumption neural machine learning to neuroprosthetics, to increased insight into the question of how the brain works.
Vacancies
No vacancies currently.
News
Energy-efficient AI detects heart defects
Mathematical breakthrough by Centrum Wiskunde & Informatica (CWI) allows neuromorphic chip to recognise heart defects, speech and hand gestures up to a thousand times more energy efficient. Such low-energy AI chips are ideal for wearable and mobile applications.
CWI launches first podcast ‘Superscience’
Together with IT professional magazine AG Connect, CWI presents a podcast series in honour of its 75th anniversary: Superscience. In the first episode: Sander Bohté.
Jan Hemelrijk award for CWI's Rosanne Turner
The Netherlands Society for Statistics and Operations Research (VVSOR) awarded the Jan Hemelrijk Award to PhD student Machine Learning Rosanne Turner.
Bayesian learning from data: challenges, limitations and pragmatics
How do humans and computers learn from data? PhD student Rianne de Heide of CWI’s Machine Learning group explored Bayesian learning in specific.
Members
Associated Members
Publications
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Sterkenburg, T.F, & Grünwald, P.D. (2021). The no-free-lunch theorems of supervised learning. Synthese. doi:10.1007/s11229-021-03233-1
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Kruijne, W, Bohte, S.M, Roelfsema, P.R, & Olivers, C.N.L. (2021). Flexible working memory through selective gating and attentional tagging. Neural Computation, 33(1), 1–40. doi:10.1162/neco_a_01339
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van Gendt, M.J, Siebrecht, M, Briaire, J.J, Bohte, S.M, & Frijns, J.H.M. (2020). Short and long-term adaptation in the auditory nerve stimulated with high-rate electrical pulse trains are better described by a power law. Hearing Research, 398. doi:10.1016/j.heares.2020.108090
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Degenne, R.R.B.P, Shao, H, & Koolen-Wijkstra, W.M. (2020). Structure adaptive algorithms for stochastic bandits. In Proceedings of the International Conference on Machine Learning (pp. 2443–2452).
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Mhammedi, Z, & Koolen-Wijkstra, W.M. (2020). Lipschitz and comparator-norm adaptivity in online learning. In Proceedings of Machine Learning Research (pp. 2858–2887).
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Turner, R.J. (2020). Safe Statistics for Means and Proportions.
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Grünwald, P.D, & Mehta, N.A. (2020). Fast rates for general unbounded loss functions: From ERM to generalized bayes. Journal of Machine Learning Research, 21, 1–80.
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Mhammedi, Z, Grünwald, P.D, & Guedj, B. (2019). PAC-Bayes Unexpected Bernstein Inequality. In Proceedings NeurIPS (Annual Conference on Neural Information Processing Systems).
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Grünwald, P.D, & Roos, T. (2019). Minimum Description Length Revisited. Mathematics for industry.
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van Ommen, M, Koolen-Wijkstra, W.M, & Grünwald, P.D. (2019). Efficient algorithms for minimax decisions under tree-structured incompleteness. In Lecture Notes in Computer Science/Lecture Notes in Artificial Intelligence (pp. 336–347). doi:10.1007/978-3-030-29765-7_28
Software
Squint: Experimenting in Prediction with Expert Advice problems
Squint provides a codebase to perform numerical proof-of-concept experiments in learning theory, particularly in Prediction with Expert Advice problems, a core problem in learning theory.
Current projects with external funding
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Efficient Deep Learning Platforms (eDLP)
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Enabling Personalized Interventions (EPI)
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Human Brain Project - SGA3 (HBP-SGA3)
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Bayesian Best-Arm Identification: optimal algortihms for sequential decision making (None)
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Efficient Models of Decision-Making for Asseing Cognitive Processing States (None)
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Perceptive acting under uncertainty: safety solutions for autonomous systems (None)
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Safe Bayesian Inference: A Theory of Misspecification based on Statistical Learning (SAFEBAYES)
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Spiking Neural Networks research program
Related partners
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INRIA
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Katholieke Universiteit Nijmegen
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Philips
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KPMG
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SURFsara B.V.
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Technische Universiteit Eindhoven
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Technische Universiteit Delft
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Universiteit Twente
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Universiteit van Amsterdam
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Vrije Universiteit Amsterdam