May 11th, 2008| 10:42 pm | Posted by hlee
I think I have to review spatial statistics in astronomy, focusing on tessellation (void structure), point process (expanding 2 (3) point correlation function), and marked point process (spatial distribution of hardness ratios of X-ray distant sources, different types of galaxies -not only morphological differences but other marks such as absolute magnitudes and existence of particular features). When? Someday…
In addition to Bayesian methodologies, like this week’s astro-ph, studies on characterizing empirical spatial distributions of voids and galaxies frequently appear, which I believe can be enriched further with the ideas from stochastic geometry and spatial statistics. Click for what was appeared in arXiv this week. Continue reading ‘[ArXiv] 1st week, May 2008’ »
Tags:
Classification,
covariance,
FARIMA,
Fisher information,
GL,
GRB,
Levy,
light curve,
limb darkening,
ML,
Pareto distribution,
quasars,
solar flare,
standard candle,
tessellation,
time series,
VO,
void Category:
arXiv,
MCMC,
Uncertainty |
1 Comment
Feb 10th, 2008| 11:56 am | Posted by hlee
Review papers on Bayesian hierarchical modeling and LAR (least angle regression) appeared in this week’s stat arXiv and in addition to interesting astro-ph papers.
A review paper on LASSO and LAR: [stat.ME:0801.0964] T. Hesterberg et.al.
Least Angle and L1 Regression: A Review
Model checking for Bayesian hierarchical modeling: [stat.ME:0802.0743] M. J. Bayarri, M. E. Castellanos
Bayesian Checking of the Second Levels of Hierarchical Models
Continue reading ‘[ArXiv] 1st week, Feb. 2008’ »
Tags:
CMB,
compressed sensing,
cosmic void,
experimental design,
hierarchical model,
ICA,
Kd-tree,
LAR,
LASSO,
Model Selection,
solar flare,
SVM Category:
arXiv |
Comment