News

Cryptology group news

Rubicon grants for David de Laat and Alessandro Zocca

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.

CWI researcher makes higher turnover in hotel bookings possible

With a new mathematical method, hotels can receive on average 5% more turnover in the long term when taking online reviews into account. Dirk Sierag, PhD student of CWI, analysed with historical data the behaviour of consumers booking rooms. Based on the results he designed mathematical models that can support hotels in determining optimal prices of hotel rooms. The research results can also be applied on movies, concerts, sporting events and, for example, Uber taxi rides.

NWO Complexity grant for Stochastics researchers

A consortium led by CWI researcher Rob van der Mei (Stochastics) has been awarded a grant within the Complexity in Transport & Logistics programme. Elenna Dugundji of CWI is one of the co-applicants an project manager of the research project. In total 15 proposals were submitted, of which 7 were granted. The available budget for this programme is a maximum of € 3.5 million and is provided by the NWO divisions of Social Sciences (MaGW) and Physical Sciences (EW) and the NWO governing board.

Increased call center efficiency by identifying redialers

Call centers should base their staff planning on the number of unique callers instead of the total number of calls. Furthermore, introducing a system that gives redialers priority over fresh callers both reduces the average waiting time and improves the fairness of the system. This can be concluded from a study on call center management conducted by CWI.

Inaugural speech Marie-Colette van Lieshout

On Thursday 3 December 2015 dr. Marie-Colette van Lieshout (CWI and UT) held her inaugural lecture as a full professor of Spatial Stochastics at the Faculty of Electrical Engineering, Mathematics and Computer Science of the University of Twente. Her inaugural speech was titled 'Chances in Space and Time'.

Vici grant for Bert Zwart

Researcher Bert Zwart of CWI has been awarded a Vici grant from the Netherlands Organization for Scientific Research (NWO) for his proposal ‘Rare Events: Asymptotics, Algorithms, Applications’. With the 1.5 million euro grant, Zwart can develop his own line of research and research group in the next five years. It is one of the largest research grants in the Netherlands.

Arnoud den Boer wins Gijs de Leve prize

Arnoud den Boer, former PhD student of CWI, has been awarded the Gijs de Leve Prize. The prize was awarded last week at the annual congress of the LNMB, the Dutch Network on the Mathematics of Operations Research.

Modelling impatient Internet users

Impatience of Internet users is a major problem for its quality of service. A vast amount of data is wasted on transfers that are aborted before completion. CWI researchers have developed new models that incorporate this user impatience.

Honorable mention Arnoud den Boer

Arnoud den Boer, former PhD student at the Centrum Wiskunde & Informatica (CWI) in Amsterdam) has received an honorable mention from the jury of the VVS/OR van Zwet Award for his thesis 'Dynamic Pricing and Learning'.

Demeter Kiss defends thesis on percolation theory

CWI researcher Demeter Kiss presents in his thesis some new models and tools in percolation theory. He studied random networks which have a phase transition, a phenomenon similar to that when ice melts to water. He will defend his thesis on 3 July 2013 at the VU University Amsterdam.

Best Paper Award at ICORES 2013

Researchers Nir Perel from Tel Aviv University, Jan-Pieter Dorsman (CWI and TU/e) and Maria Vlasiou (CWI and TU/e) won the Best Paper Award for their paper ‘Cyclic-type polling models with preparation times’ in the area Methodologies and Technologies at the 2nd International Conference on Operations Research and  Enterprise Systems (ICORES 2013).

CWI starts research on police service optimization

Researchers of the Centrum Wiskunde & Informatica (CWI) and the VU University Amsterdam join forces with the Amsterdam-Amstelland police force to optimize the planning of police services. New techniques allow a more efficient capacity planning and quicker response times by matching available resources with the probable occurrence of incidents.