Colloquium Mathematics, Antonino Abbruzzo
Join us for coffee and tea at 15.45 p.m.
Date: Thursday, April 5th 2012
Speaker: Antonino Abbruzzo
Room: 5161.0253 (Bernoulliborg)
Time: 16.15
Title: Graphical models for estimating dynamic networks
Abstract:
Graphical models are powerful tools to estimate complex networks such as genomic networks. A genomic network is a system of relationships between genes which are represented by nodes. These relationships correspond to conditional dependences between genes, and they are represented by links. If we do not have any information about the presence or absence of links, then we need to recover these links from the data. The complexity of estimating network structures result from the very large number of possible models, that is given by 2^C(p,2) where C(p,2) is the binomial coefficient and p is the number of nodes. Surprisingly, penalized graphical models can be applied to recover network structures even if p is large relatively to the number of observations. However, penalized graphical models do not consider the dynamic of the networks. We propose two new models, the factorial graphical lasso and the slowly changing graphical models, to estimate complex dynamic networks.
Colloquium coordinators are Prof.dr. A.C.D. van Enter (e-mail : A.C.D.van.Enter@rug.nl) and
Dr. A.V. Kiselev (e-mail: a.v.kiselev rug.nl )
http://www.rug.nl/wiskunde/nieuws/actueel/wiskundecolloquia
Laatst gewijzigd: | 10 februari 2021 14:28 |
Meer nieuws
-
14 juli 2025
ERC Proof of Concept grant voor Kottapalli en Covi
Professoren Ajay Kottapalli en Erika Covi hebben allebei een Proof of Concept grant ontvangen van de European Research Council (ERC).
-
10 juli 2025
Nationale Wetenschapsagenda subsidie voor nanomedicine onderzoek
Prof. Dr. Anna Salvati, Dr. Christoffer Åberg en Prof. Dr. Siewert-Jan Marrink ontvangen een Nationale Wetenschapsagenda financiering om met het NanoMedNL consortium levensreddende medicijnen op basis van nanotechnologie verder te ontwikkelen.
-
10 juli 2025
Nationale Wetenschapsagenda subsidie voor circulaire biogebaseerde materialen
Prof. dr. Anastasiia Krushynska ontvangt een Nationale Wetenschapsagenda (NWA) subsidie van EUR 600.000 om innovatieve technologieën te helpen ontwikkelen voor het omzetten van laagwaardig organisch afval in duurzame, recyclebare materialen.