Statistical Methods for Exploring Metabolic Networks September 26, 2011 11:00 a.m. Erkki Somersalo Abstract One of the great challenges in medical research is to understand the functioning of metabolic systems and how the genes express themselves on the phenotype level. In this talk we take a look at complex metabolic networks in various organs such […]
Robust Parameter Mesh-Free Preconditioner for a Boundary Control Elliptic Problem March 5, 2012 3:00 p.m. Marcus Sarkis Abstract We discuss the following problem: Given a domain Ω and a target function u, what should be the Neumann data λ so that its harmonic extension u(λ) into the domain Ω is the closest function to u […]
Fekete-Gauss spectral elements with application to Navier-Stokes flows March 6, 2012 3:00 p.m. Richard Pasquetti Abstract Spectral element methods on simplicial meshes (TSEM) show both the advantages of spectral and finite element methods, i.e. spectral accuracy and geometry flexibility. We first summarize works previously done for elliptic problems and then present a TSEM solver of […]
Variance Reduction Methods in Stochastic Homogenization December 7, 2011 3:00 p.m. Frederic Legoll Abstract In this talk, we will describe various methods, among which variance reduction strategies, to make random homogenization more affordable from the practical viewpoint. In the framework of stochastic homogenization, the homogenized matrix is defined from the so-called corrector function that solves […]
Computer Model Calibration with High and Low Fidelity Model Output for Spatio-Temporal Data March 8, 2012 3:45 p.m. William Kleiber Abstract We discuss a framework for computer model calibration based on high and low fidelity model output for large spatio-temporal datasets. The physical model in use is a coupled magnetohydrodynamic-ionospheric model for solar storms occurring […]