tag:blogger.com,1999:blog-10448119.post5576942086943697209..comments2024-03-29T07:56:43.514-04:00Comments on Hogg's Research: GPs in the Fourier domainHogghttp://www.blogger.com/profile/18398397408280534592noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-10448119.post-44633010880755205402015-10-23T16:01:57.440-04:002015-10-23T16:01:57.440-04:00Michael: I've been shouting in the desert abou...Michael: I've been shouting in the desert about this (the GMRF to GP connection via SPDEs) for a while now but no-one in astro is listening (see e.g. http://arxiv.org/abs/1406.6371 and a previous use in cosmology by some Dubliners here: http://arxiv.org/abs/1011.4018 )! Non-stationarity = solved. GPs on manifolds = solved. Fast inference with INLA = check. etc. etc. Would be very interested to talk with you if you have some applications in mind ...Ewanhttps://www.blogger.com/profile/14632112896013242511noreply@blogger.comtag:blogger.com,1999:blog-10448119.post-70778404173271954562015-10-19T18:07:06.699-04:002015-10-19T18:07:06.699-04:00We just met with statistician Chris Paciorek at UC...We just met with statistician Chris Paciorek at UC Berkeley on 2015-10-15 about sampling from very large GPs for modeling lensing shear and convergence in our probabilistic cosmic shear framework. I learned about Gaussian Markov Random Fields and associated sparse precision matrices for Matern covariances. This sounds similar to what you're describing here?Michaelhttps://www.blogger.com/profile/06752906427338196577noreply@blogger.com