The next OCBE biostatistics seminar will be held on Thursday, May 25th, at 14:30-15:30 in Lille Auditorium (Domus Medica, Oslo)
Francesco Stingo, Associate Professor at the Department of Statistics, Computer Science and Applications, University of Florence, Italy, will present about
Recent Advances in Bayesian Graphical Models with Varying Structure
Abstract: We first focus on recent inferential and computational techniques for multiple graphical models, where the sub-group assignment depends on the value of an external observed covariate. We then introduce Bayesian Gaussian graphical models with covariates (GGMx), a class of multivariate Gaussian distributions with covariate-dependent sparse precision matrix. We propose a general construction of a functional mapping from the covariate space to the cone of sparse positive definite matrices, that encompasses many existing graphical models for heterogeneous settings. he flexible formulation of GGMx allows both the strength and the sparsity pattern of the precision matrix (hence the graph structure) change with the covariates. Extensive simulations and a case study in cancer genomics demonstrate the utility of the proposed models. Joint work with Yang Ni, Veerabhadran Baladandayuthapani, and Claudio Busatto.
The OCBE biostatistics seminar series is organized by the Oslo Centre for Biostatistics and Epidemiology and is an arena for presenting new interesting work in biostatistics, both on the methodological and applied side, from researchers in Oslo, from Norway and abroad.
See also: https://www.med.uio.no/imb/english/research/centres/ocbe/events/biostat-seminar/
for updates or for subscribing to the events. If you'd like to be added in the "biostat-ext" mailing list, just let us know.
Other upcoming seminars this semester:
June 1st, 2023: Jotun Hein, Department of Statistics, University of Oxford, UK
June 15th, 2023: Susanne Strohmaier, Medical University of Vienna, Austria
Welcome!
Best wishes,
Jon Michael Gran, Valeria Vitelli and Manuela Zucknick
