Covariance regularity and \(\mathcal {H}\) -matrix approximation for rough random fields.
Jürgen DölzHelmut HarbrechtChristoph SchwabPublished in: Numerische Mathematik (2017)
Keyphrases
- random fields
- matrix approximation
- maximum entropy
- least squares
- parameter estimation
- conditional random fields
- markov random field
- approximation error
- theoretical guarantees
- bregman divergences
- covariance matrix
- marginal distributions
- pairwise
- low rank matrix approximation
- non stationary
- low rank matrix
- low rank
- probabilistic model
- information retrieval
- active contours
- higher order
- image processing