Description
Leader of the group Scientific Computing: Daan Crommelin.
The SC groups develops efficient mathematical methods to simulate and predict real-world phenomena with inherent uncertainties. Such uncertainties arise from e.g. uncertain model parameters, chaotic dynamics or intrinsic randomness, and can have major impact on model outputs and predictions. Our work is targeted in particular at applications in climate, energy, finance and biology. In these vital areas, the ability to assess uncertainties and their impact on model predictions is of paramount importance. Expertise in the SC group includes uncertainty quantification, data assimilation, stochastic multiscale modeling and risk assessment. The availability of data to inform and improve simulations and predictions, for example through learning and data-driven modeling, plays an important role in our research.
Vacancies
Tenure track position Machine learning and partial differential equations
Centrum Wiskunde & Informatica (CWI) in Amsterdam invites enthusiastic and highly talented researchers to apply for a Tenure track position Machine learning and partial differential equations in the Scientific Computing research group.
News
Tackling messy blood vessels to fight cancer
With a Vici grant of 1.5 million euro, Roeland Merks (CWI and UL) looks for ways to fix messy and leaky blood vessels in tumours. To do so, he combines mathematical simulations and lab experiments in a unique way.
Vici grants for Nikhil Bansal and Roeland Merks
CWI researchers Nikhil Bansal and Roeland Merks have been awarded Vici grants from NWO. With the 1.5 million euro grant, Bansal and Merks can develop their own research lines in the next five years.
Instable blood supply may help healthy cells compete with tumor cells
Researchers of CWI’s Scientific Computing group have found that instabilities in the blood supply in cancerous tissue can, surprisingly, lead to a less favorable environment for tumor cells. Their findings shed light on the potential negative side effects of current treatments that aim to actually normalize the blood supply in cancerous tissues.
CWI researcher simulates complex financial developments, from interest rates to the possibility of bankruptcy
PhD student Alvaro Leitao Rodriguez proposes new methods to tackle complex problems in the financial sector. With these methods, Leitao Rodriguez successfully simulates the movements of the interest rates in the Foreign eXchange (FX) markets and evaluates corresponding risks.
Current events
PhD defence Andrea Fontanari (Scientific Computing)
- 2019-12-10T15:00:00+01:00
- 2019-12-10T16:00:00+01:00
PhD defence Andrea Fontanari (Scientific Computing)
Start: 2019-12-10 15:00:00+01:00 End: 2019-12-10 16:00:00+01:00
You are all cordially invited to the public defence of Andrea Fontanari on his PhD thesis entitled:
Lorenz-based quantitative risk management- Email: Andrea Fontanari
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PhD defence Ki Wai Chau (SC)
- 2020-01-16T10:00:00+01:00
- 2020-01-16T11:00:00+01:00
PhD defence Ki Wai Chau (SC)
Start: 2020-01-16 10:00:00+01:00 End: 2020-01-16 11:00:00+01:00
You are cordially invited to the public defence of Ki Wai Chau on his PhD thesis titled:
Numerical Finance with Backward Stochastic Differential Equations
Promotor: prof. dr.ir. Cornelis W. Oosterlee (CWI, TU Delft)
- Email: Ki Wai Chua
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PhD Defence Sangeetika Ruchi (SC)
- 2020-01-20T12:45:00+01:00
- 2020-01-20T13:30:00+01:00
PhD Defence Sangeetika Ruchi (SC)
Start: 2020-01-20 12:45:00+01:00 End: 2020-01-20 13:30:00+01:00
You are cordially invited to the public defence of Sangeetika Ruchi on her thesis:
"Parameter Estimation in Random Energy Systems using Data Assimilation"
Promotor: prof.dr.ir. Jason Frank (UU)
co-promotor: dr. Svetlana Dubinkina (CWI)
- Email: Sangeetika Ruchi
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PhD Defence Laurent van den Bos (SC)
- 2020-02-04T12:00:00+01:00
- 2020-02-04T14:00:00+01:00
PhD Defence Laurent van den Bos (SC)
Start: 2020-02-04 12:00:00+01:00 End: 2020-02-04 14:00:00+01:00
You are cordially invited to the public defence of Laurent van den Bos on his thesis:
Quadrature Methods for Wind Turbine Load Calculations
Promotor: Prof. dr. G. J.W. van Bussel (TUD)
Co-promotoren: dr.ir. W. A. A. M. Bierbooms (TUD) en dr.ir. B. Sanderse (CWI)
Time schedule
12:00 - 12:20 Introductory talk
12:30 - 13:30 Defense
13:45 - 14:00 Graduation ceremony
14:00 - Reception (in the same building)
- Email: Laurent van den Bos
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Members
Associated Members
Publications
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Ruchi, S, Dubinkina, S, & Iglesias, M.A. (2019). Transform-based particle filtering for elliptic Bayesian inverse problems. Inverse Problems, 35. doi:10.1088/1361-6420/ab30f3
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Liu, S, Borovykh, A.I, Grzelak, L.A, & Oosterlee, C.W. (2019). A neural network-based framework for financial model calibration. Journal of Mathematics in Industry, 9(1). doi:10.1186/s13362-019-0066-7
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Borovykh, A.I, Oosterlee, C.W, & Bohte, S.M. (2019). Generalization in fully-connected neural networks for time series forecasting. Journal of Computational Science, 36, 1–15. doi:10.1016/j.jocs.2019.07.007
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Kumar, P. (2019, July 16). Multilevel solvers for stochastic fluid flows.
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Groen, D, Richardson, R.A, Wright, D.W, Jancauskas, V, Sinclair, R, Karlshoefer, P, … Coveney, P.V. (2019). Introducing VECMAtk - Verification, validation and uncertainty quantification for multiscale and HPC simulations. In Lecture Notes in Computer Science/Lecture Notes in Artificial Intelligence (pp. 479–492). doi:10.1007/978-3-030-22747-0_36
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Sanderse, B, & Veldman, A.E.P. (2019). Constraint-consistent Runge–Kutta methods for one-dimensional incompressible multiphase flow.
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Viebahn, J.P, Crommelin, D.T, & Dijkstra, H.A. (2019). Towards a turbulence closure based on energy modes. Journal of Physical Oceanography, 49(4), 1075–1097. doi:10.1175/JPO-D-18-0117.1
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Wolff, H.B, Davidson, L.A, & Merks, R.M.H. (2019). Adapting a plant tissue model to animal development: Introducing cell sliding into VirtualLeaf. Bulletin of Mathematical Biology, 1–20. doi:10.1007/s11538-019-00599-9
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van der Stoep, A.W. (2019, March 26). Pricing and calibration with stochastic local volatility models in a Monte Carlo setting.
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Bisewski, K.L, Crommelin, D.T, & Mandjes, M.R.H. (2018). Simulation-based assessment of the stationary tail distribution of a stochastic differential equation. In Proceedings of the 2018 Winter Simulation Conference.
Current projects with external funding
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Accurate prediction of slugs in multiphase pipe flow simulation for improved oil and gas production
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Towards cloud-resolving climate simulations
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Valuation Adjustments for Improved Risk Management (ABC-EU-XVA)
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Physics based ICT: The digital twin in pipelines (DP-Trans)
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Excellence in Uncertainty Reduction of Offshore Wind Systems / Loads and Damage (EUROS)
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Sloshing of Liquefied Natural Gas: subproject Variability (14-10-project2) (SLING)
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Verified Exascale Computing for Multiscale Applications (VECMA)
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WIND Turbine Rotor aeroelasticity UncErtainty quantification (WINDTRUE)
Related partners
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DNV GL Netherlands B.V
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FOM
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Max Planck Institute for Informatics
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Shell, Amsterdam
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Bull Sas
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CBK Sci Con Ltd
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Bayerische Akademie der Wissenschaften
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MeitY
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Instytut Chemii Bioorganicznej Polskiej Akademii Nauk
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Rijksuniversiteit Groningen
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Suzlon Blades Technology
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TNO
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Technische Universiteit Eindhoven
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Technische Universiteit Delft
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Brunel University London
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University College London
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Universiteit van Amsterdam