CWI researchers David de Laat and Alessandro Zocca both received an NWO Rubicon grant. De Laat will study new techniques to compute optimal packings at MIT for one year, and Zocca will study renewables and uncertainty in future power systems at Caltech for two years. NWO granted these subsidies to 22 young, highly promising research talents to gain international research experience at foreign top institutes.
Due to the recent financial crisis, the requirements imposed on banks have been made stricter. Banks must model the credit risk of the counterparties now in their portfolios, for instance. A measure for this is the credit value adjustment (CVA): the difference between the value of a portfolio without credit risk and the value if a possible bankruptcy of the counterparty is included. Qian Feng, PhD student from CWI, modelled CVAs and designed a new algorithm that can help banks estimate the risks precisely, so they can take appropriate measures if necessary.
CWI PhD student Linda Plantagie of the Computational Imaging research group has introduced a new algebraic filter for the use of reconstructing X-Ray images. Linda Plantagie will defend her thesis 13 April at Leiden University.
Met een nieuwe wiskundige methode kan een hotel op langere termijn gemiddeld 5% meer omzet halen als rekening wordt gehouden met online reviews. Dirk Sierag, promovendus van het CWI, analyseerde met boekingsgegevens uit het verleden het gedrag van consumenten die hotelkamers boeken. Daarmee maakte hij wiskundige modellen die hotels kunnen ondersteunen bij het bepalen van een optimale prijs van hotelkamers. Op 30 maart promoveerde hij aan de Vrije Universiteit Amsterdam op zijn proefschrift 'Revenue Management in the Hotel Industry'. De onderzoeksresultaten zijn ook toepasbaar op films, concerten, sportevenementen en bijvoorbeeld Uber-taxiritten.
Tijdens de groei van embryo’s richten cellen zich naar krachten uit het omliggende weefsel. Deze krachten ontstaan door verschillen in groeisnelheden, spiercontracties of de zwaartekracht. Wiskundigen van het Centrum Wiskunde & Informatica (CWI) in Amsterdam toonden voor het eerst aan dat het actief samentrekken van de cel deze heroriëntatie van cellen kan versnellen en vergemakkelijken. Hun onderzoek verscheen onlangs in het toonaangevende tijdschrift Biophysical Journal (112).
During the growth of embryos cells align with forces from the surrounding tissue. These forces originate from differences in growth rates, muscle contractions or gravity. Mathematicians at the CWI research centre in Amsterdam now showed for the first time that active cell contractions can accelerate and facilitate this reorientation of cells. Their research was recently published in the leading Biophysical Journal (112).
Prof. dr. H.M. Buhrman has been appointed as Distinguished Research Professor at the Faculty of Science of the University of Amsterdam. In this position Harry Buhrman will function as the figurehead of the QuSoft research center and be committed to further development of the institute.
Internet is used for communication via video conferencing, voice calls, chatting, photo sharing, online gaming and virtual reality. These technologies are changing our daily lives and the way we interact with each other. Highly realistic reconstructed 3D representations that combine real and synthetic contents in a virtual world will be part of this online interaction more and more.
In emergency situations where every second counts, the timely presence of an ambulance can be a matter of live or death. In The Netherlands the norm for the response time of ambulances amounts 15 minutes for high-urgency incidents. In practice this norm is not always met however.
CWI recently launched spin-off company SEITA (Sustainable Energy Is Totally Achievable), a service provider focused on the energy sector.
On 1 February W3C announced that the World Wide Web Consortium (W3C) and the International Digital Publishing Forum (IDPF) will combine their organizations to set up a new roadmap for Digital Publishing. Ivan Herman, researcher at CWI, has played a seminal role in this combination.
When you request information from a huge database, you might want to grab a cup of coffee and sit back, because your request may take a while. How can we optimize searches for information, specifically in a multi-core processing unit? The answer may lie in parallel queries, which run simultaneously on different processors.
In January 2017, ERCIM News No. 108 was published: http://ercim-news.ercim.eu/en108. It features a special theme on Computational Imaging, coordinated by guest editors Joost Batenburg (CWI) and Tamas Sziranyi (MTA SZTAKI).
Stochastics researcher Rob van der Mei has made an appearance in an episode of the TV programme 'Universiteit van Nederland'. He contributed to a series of 5 episodes themed 'Disasters'. Rob's talk focuses on how the ambulance can get to your house even faster.
PhD student Caroline Jagtenberg of CWI has executed research focused on reducing response time of ambulances. In her thesis Efficiency and Fairness in Ambulance Planning she presents new statistical models and methods, verified by realistic case studies for a Dutch ambulance provider. In emergency situations where every second counts, the timely presence of an ambulance can be a matter of life or death. This research to improve the logistics of Emergency Medical Services (EMS) can contribute to improving the response times of ambulances.
'Industry deprecation proved to be too slow' Today, Thursday 23 February 2017, researchers at the Dutch research institute CWI and Google jointly announce that they have broken the SHA-1 internet security standard in practice. This industry standard is used for digital signatures and file integrity verification, which secure credit card transactions, electronic documents, GIT open-source software repositories and software distribution.