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December 2019

Eindhoven Stochastics Seminar

Dec 3, 2019, 15:45 - 16:45
MF 11-12 (4th floor MetaForum Building, TU/e)

Kay Bogerd (TU Eindhoven) Detecting small communities in inhomogeneous random graphs Many networks are organized in communities, with certain groups of vertices being more densely connected than others. When these communities are large enough they can easily be detected, whereas small communities can be more difficult, especially when the network is also inhomogeneous. In this talk, we consider the problem of detecting whether an inhomogeneous random graph contains a small community. We show when a scan test can asymptotically detect…

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Workshop "Heavy Tails"

Dec 9, 2019 - Dec 13, 2019
MF 11-12 (4th floor MetaForum Building, TU/e)

Summary The goal of the workshop is to bring together researchers from probability, statistics, and various application areas such as computer science, operations research, physics, engineering and finance and learn from each other on the latest developments in theory , statistical and simulation algorithms, and applications. Sponsors       Organizers Remco van der Hofstad TU Eindhoven Adam Wierman Caltech Bert Zwart CWI / TU Eindhoven Speakers August Balkema University of Amsterdam Bojan Basrak University of Zagreb Mihail Bazhba CWI…

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Eindhoven Stochastics Seminar

Dec 16, 2019, 15:45 - 16:45
MF 11-12 (4th floor MetaForum Building, TU/e)

Gianmarco Bet (University of Florence) Weighted Dyck paths for non stationary queues We consider a model for a transitory queue in which only a fixed number $N$ of customers can join. Each customer joins the queue independently of the other ones at a random time, which we assume to be exponentially distributed. Assuming further that the service times also follow an exponential distribution, this system can be described as a two-dimensional Markov process on a triangular subset of $\mathbb Z^2$. The…

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January 2020

Eindhoven Stochastics Seminar

Jan 16, 11:00 - 12:00
MF 7 (floor -1)

Seva Shneer (Heriot-Watt University) Utility-maximising properties of some service-rates allocations in wireless communication networks We consider wireless communication networks where service rates of nodes depend on their signal to interference plus noise ratios. We demonstrate that these rates are utility-maximising in a certain sense. Using this observation, we prove stability of single-hop networks under natural assumptions. We also obtain bounds on some moments of the stationary workload. In order to obtain these results, we consider a framework of utility-optimising rate allocations which is…

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February 2020

Eindhoven Stochastics Seminar

Feb 4, 15:45 - 16:45
MF 15 (floor 7)

Jim Portegies (TU Eindhoven) Tropical probability and information optimization Together with Slava Matveev, we've been developing a theory of tropical probability, which is a metric-geometric perspective on information theory that can be helpful in the study of information-optimization problems. In this talk I will give a coarse overview of what we have developed so far, explain what we mean by information-optimization problems and indicate an application to such a problem.

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Eindhoven Stochastics Seminar

Feb 26, 11:00 - 12:00
MF 11-12 (4th floor MetaForum Building, TU/e)

Rob van der Mei (CWI & VU Amsterdam) Saving Lives by Stochastic Optimization In serious, life-threatening situations, the timely presence of emergency services (ambulance, firefighters) can make the difference between survival or death. In this talk, I will discuss a number of models and optimization results and show that they can really make the difference.    

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March 2020

Eindhoven Stochastics Seminar

Mar 10, 15:45 - 16:45
MF 11-12 (4th floor MetaForum Building, TU/e)

Wouter de Vries (KPN) Artificial intelligent processes for people About 75 years after the first prudent attempts to capture artificial intelligence in conceptual models, the field is now an exuberant and flourishing domain. Many ingenious applications find their way to consumers and businesses, as well as the telecommunications sector. Through some appealing examples, such as image recognition and speech recognition, this lecture gives an impression of what artificial intelligence is about. In addition, some insights are given from the founding…

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April 2020

CANCELLED: Graph Limits

Apr 6 - Apr 9
MF 11-12 (4th floor MetaForum Building, TU/e)

CANCELLED due to Corona Virus Summary The workshop will address both the basic theory and the applications of graph limits, focusing on graphons and graphexes, as well as various applications. In the last few years several beautiful and exciting developments have taken place in this area. It is therefore time to bring together researchers from different fields, including probability theory, combinatorics, statistics and algorithmics. The workshop will run from Monday morning 09.00 am till Thursday afternoon 17.00 pm Sponsors  …

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May 2020

CANCELLED: Workshop YEP XVII: "Interacting Particle Systems"

May 11 - May 15
MF 11-12 (4th floor MetaForum Building, TU/e)

Summary The theory of Interacting Particle Systems focuses on the dynamics of systems consisting of a large or infinite number of entities, in which the mechanism of evolution is random and follows simple, local rules. The topic had its beginnings in the 70s and 80s, motivated by Statistical Physics and fundamental problems from Probability Theory. It has since developed into a fruitful source of interesting mathematical questions and a very successful framework to model emerging collective complex behavior for systems…

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CANCELLED: Safe, Anytime-Valid Inference (SAVI)

May 25 - May 29
MF 11-12 (4th floor MetaForum Building, TU/e)

Summary A large fraction of published research in top journals in applied sciences such as medicine and psychology has been claimed as irreproducable. In light of this 'replicability crisis', traditional methods for hypothesis testing, most notably those based on p-values, have come under intense scrutiny. One central problem is the following: if our test result is promising but non-conclusive (say, p = 0.07) we cannot simply decide to gather a few more data points. While this practice is ubiquitous in…

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