Details

Autor(en) / Beteiligte

• Risser, L
• Vincent, T
• Ciuciu, P

Titel

Extrapolation Scheme For Fast 3D Ising Field Partition Function Estimation. Application to Bayesian Analysis of Within Subject fMRI Data

Ist Teil von

• NeuroImage (Orlando, Fla.), 2009-07, Vol.47, p.S167-S167

Ort / Verlag

Amsterdam: Elsevier Inc

Erscheinungsjahr

2009

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In [4], the authors have developed a fast three steps procedure: 1) A set of reference PF are estimated using path sampling. 2) At a given temperature level, linear regression with respect to the clique number is performed to approximate the reference PFs. 3) Linear regression coefficients are directly exploited to interpolate the PF attached to any test grid. While this approach may provide accurate results on regular grids (RG), it seems impractical whenever non-regular grids are considered. Since brain parcellation involved in the Joint Detection-Estimation (JDE) context of brain activity [5-6] appears to be made up of non-regular parcels, we propose two extensions.