# European Institute for Statistics, Probability, Stochastic Operations Research and their Applications

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# January 28-29, 2013 - Eindhoven, The Netherlands

## Summary

The dramatic improvement in data collection and acquisition technologies in the last decades has allowed for the monitoring and study of extremely complex systems, such as biological, social and computer networks. The extremely complex and high-dimensional nature of these systems, and the dramatic growth in dataset sizes gives rise to important research questions: how to perform meaningful statistical inference from very large and potentially corrupted complex data sets? Which properties of these complex systems can be inferred from such data? Can sound inference methodologies be also made computationally feasible? These and other questions have recently attracted the attention of a large number of researchers worldwide and, although important progress has been made in recent years, there are still many open and emerging problems in the general area of statistical inference in complex and high-dimensional systems.

The aim of the YES workshop “Statistics for Complex Networks and High Dimensional Systems” is to introduce this broad field of research to young researchers, in particular Ph.D. students, postdoctoral fellows and junior researchers who are interested and eager to tackle new challenges in the study of complex networks. The workshop will consist of tutorial courses given by some of the world experts in the field, each consisting roughly of 3 hours of lectures. This workshop immediately precedes the workshop Statistics for Complex Networks and provides a solid introduction for the general topical area of that workshop.

Rui Castro
Geurt Jongbloed

## Tutorial Speakers

Eric Kolaczyk, Boston University
Johan Koskinen, University of Manchester
Martin Wainwright, University of California – Berkeley

## Program

(click on author's name for title and abstract)

### Monday (January 28th)

• 09:45 - 10:05 Coffee and Registration
• 10:05 - 10:15 Opening Remarks
• 10:15 - 11:15 Eric Kolaczyk - Statistical Analysis of Network Data (Part I)
• 11:15 - 11:30 Coffee Break
• 11:30 - 12:30 Eric Kolaczyk - Statistical Analysis of Network Data (Part II)
• 12:30 - 13:30 Lunch
• 13:30 - 14:30 Martin Wainwright - Graphical models and message-passing algorithms (Part I)
• 14:30 - 14:45 Coffee Break
• 14:45 - 15:45 Martin Wainwright - Graphical models and message-passing algorithms (Part II)
• 15:45 - 16:15 Coffee Break
• 16:15 - 16:45 Vujacic - Selecting $\ell_1$ penalized Gaussian graphical models using Generalized Information Criterion
• 16:45 - 17:15 Mohammadi - Network determination based on birth-death MCMC inference
• 18:30 - Workshop Dinner

### Tuesday (January 29th)

• 09:30 - 10:30 Eric Kolaczyk - Statistical Analysis of Network Data (Part III)
• 10:30 - 10:45 Coffee Break
• 10:45 - 11:45 Martin Wainwright- Graphical models and message-passing algorithms (Part III)
• 11:45 - 12:00 Break
• 12:00 - 12:30 Niezink - Co-evolution of social networks and continuous actor attributes
• 12:30 - 13:30 Lunch
• 13:30 - 14:30 Johan Koskinen - Statistical analysis of social networks (Part I)
• 14:30 - 14:45 Break
• 14:45 - 15:45 Johan Koskinen - Statistical analysis of social networks (Part II)
• 15:45 - 16:15 Break
• 16:15 - 17:15 Johan Koskinen - Statistical analysis of social networks (Part III)
• 17:15 Closing of the workshop

### Wednesday, Thursday and Friday (January 30 - February 1)

This workshop is the sixth in the series of YES (Young European Statisticians) workshops. The first was held in October 2007 on Shape Restricted Inference with seminars given by Lutz Dümbgen (Bern) and Jon Wellner (Seattle) together with shorter talks by Laurie Davies (Duisburg-Essen) and Geurt Jongbloed (Delft). The second workshop was held in October 2008 on High Dimensional Statistics with seminars given by Sara van de Geer (Zürich), Nicolai Meinshausen (Oxford) and Gilles Blanchard (Berlin). The third was held October 2009 on Paradigms of Model Choice, with seminars given by Laurie Davies (Duisburg-Essen), Peter Grünwald (Amsterdam), Nils Hjort (Oslo) and Christian Robert (Paris). The fourth, on the topic of Bayesian Non-Parametric Statistics took place in November 2010, with seminars given by Judith Rousseau (Paris), Zoubin Ghahramani (Cambridge), Yongdai Kim (Seoul) and Harry van Zanten (Eindhoven). Finally, the fifth workshop, on Adaptation in Nonparametric Statistics, took place in October 2011, with seminars by Alexander Goldenshluger (Haifa), Richard Nickl (Cambridge), Laurent Cavalier (University Aix-Marseille 1) and Eduard Belitser, (TU Eindhoven).

## Financial support

This workshop is partially sponsored by:

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