Search Results - subject:"Variational approximation"

Variational Bayesian analysis for hidden Markov models

McGrory, Clare A.; Titterington, D. M. - 2009

solution, thereby leading to a selection of the number of hidden states. In addition, through the use of a variational … approximation, the Deviance Information Criterion for Bayesian model selection can be extended to the hidden Markov model framework …

Persistent link: https://www.econbiz.de/10009483221

Existence, stability, and scattering of bright vortices in the cubic–quintic nonlinear Schrödinger equation

Caplan, R.M.; Carretero-González, R.; Kevrekidis, P.G.; … - In: Mathematics and Computers in Simulation (MATCOM) 82 (2012) 7, pp. 1150-1171

We revisit the topic of the existence and azimuthal modulational stability of solitary vortices (alias vortex solitons) in the two-dimensional (2D) cubic–quintic nonlinear Schrödinger equation. We develop a semi-analytical approach, assuming that the vortex soliton is relatively narrow, which...

Persistent link: https://www.econbiz.de/10011050183

Gap solitons in fermion superfluids

Malomed, Boris A.; Nascimento, V.A.; Adhikari, Sadhan K. - In: Mathematics and Computers in Simulation (MATCOM) 80 (2009) 4, pp. 648-659

derived from the relevant energy density and includes a self-repulsive term ∼ϕ7/3. By means of the variational approximation …

Persistent link: https://www.econbiz.de/10011050760

A structured variational learning approach for switching latent factor models

Saidane, Mohamed; Lavergne, Christian - In: AStA Advances in Statistical Analysis 91 (2007) 3, pp. 245-268

Persistent link: https://www.econbiz.de/10005598066

Variational approximations for categorical causal modeling with latent variables

Humphreys, K.; Titterington, D. - In: Psychometrika 68 (2003) 3, pp. 391-412

Persistent link: https://www.econbiz.de/10005603341