Multilevel approximation of Gaussian random fields: Covariance compression, estimation and spatial prediction.
Helmut HarbrechtLukas HerrmannKristin KirchnerChristoph SchwabPublished in: CoRR (2021)
Keyphrases
- random fields
- parameter estimation
- random field model
- marginal distributions
- partition function
- maximum likelihood
- markov random field
- maximum entropy
- random field models
- conditional random fields
- non stationary
- multivariate gaussian distribution
- gaussian convolution
- nonparametric density estimation
- autoregressive
- pseudo likelihood
- importance sampling
- covariance matrices
- maximum likelihood estimation
- closed form
- image compression
- compression ratio
- gaussian mixture model
- gibbs sampler
- least squares
- probabilistic model
- covariance matrix
- gaussian distribution
- markov fields
- model selection
- higher order
- multiscale
- image segmentation