نتایج جستجو برای: ensemble averaging

تعداد نتایج: 63931  

2008
D. J. Bedingham

Large-volume, high-temperature Bose-Einstein condensation is illustrated for a relativistic O(2)-invariant scalar field with fixed charge using the canonical ensemble. The standard, grand canonical results are reproduced for the infinite-volume limit. Finite-volume corrections are calculated and the results are found to differ from the grand canonical approximation in a consistent qualitative w...

2010
Gavin Brown

Ensemble Learning refers to the procedures employed to train multiple learning machines and combine their outputs, treating them as a “committee” of decision makers. The principle is that the committee decision, with individual predictions combined appropriately, should have better overall accuracy, on average, than any individual committee member. Numerous empirical and theoretical studies hav...

Journal: :Medical physics 2013
Jing Huo Kazunori Okada Eva M van Rikxoort Hyun J Kim Jeffry R Alger Whitney B Pope Jonathan G Goldin Matthew S Brown

PURPOSE Ensemble segmentation methods combine the segmentation results of individual methods into a final one, with the goal of achieving greater robustness and accuracy. The goal of this study was to develop an ensemble segmentation framework for glioblastoma multiforme tumors on single-channel T1w postcontrast magnetic resonance images. METHODS Three base methods were evaluated in the frame...

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