نتایج جستجو برای: branching point

تعداد نتایج: 550216  

2008
Jean Bertoin Joaquin Fontbona Servet Martinez Jean BERTOIN Joaquin FONTBONA Servet MARTINEZ

The purpose of this note is to point at an analog for continuous state branching process of the description of prolific individuals in a super-critical Galton-Watson process.

2011
Avitan Gefen Ronen I. Brafman

This paper defines and studies a new, interesting, and challenging benchmark problem that originates in systems biology. The minimal seed-set problem is defined as follows: given a description of the metabolic reactions of an organism, characterize the minimal set of nutrients with which it could synthesize all nutrients it is capable of synthesizing. Current methods used in systems biology yie...

Journal: :Journal of theoretical biology 2014
Joe Yuichiro Wakano Laurent Lehmann

Adaptive dynamics shows that a continuous trait under frequency dependent selection may first converge to a singular point followed by spontaneous transition from a unimodal trait distribution into a bimodal one, which is called "evolutionary branching". Here, we study evolutionary branching in a deme-structured population by constructing a quantitative genetic model for the trait variance dyna...

Journal: :international journal of industrial engineering and productional research- 0
masoud yaghini iran university of science and technology mohsen momeni iran university of science and technology mohammadreza momeni sarmadi iran university of science and technology

the set covering problem (scp) is a well-known combinatorial optimization problem. this paper investigates development of a local branching approach for the scp. this solution strategy is exact in nature, though it is designed to improve the heuristic behavior of the mixed integer programming solver. the algorithm parameters are tuned by design of experiments approach. the proposed method is te...

2008
ROGER HOWE ENG-CHYE TAN JEB F. WILLENBRING

Given completely reducible representations, V and W of complex algebraic groups G and H respectively, together with an embedding H →֒ G, we let [V,W ] = dimHomH (W,V ) where V is regarded as a representation of H by restriction. If W is irreducible, then [V,W ] is the multiplicity of W in V . This number may of course be infinite if V or W is infinite dimensional. A description of the numbers [V...

2008
Thomas S. Salisbury John Verzani

In this paper we present a martingale related to the exit measures of super Brow-nian motion. By changing measure with this martingale in the canonical way we have a new process associated with the conditioned exit measure. This measure is shown to be identical to a measure generated by a non-homogeneous branching particle system with immigration of mass. An application is given to the problem ...

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2005
Kensaku Mori Sinya Ema Takayuki Kitasaka Yoshito Mekada Ichiro Ide Hiroshi Murase Yasuhito Suenaga Hirotsugu Takabatake Masaki Mori Hiroshi Natori

We propose a novel anatomical labeling algorithm for bronchial branches extracted from CT images. This method utilizes multiple branching models for anatomical labeling. In the actual labeling process, the method selects the best candidate models at each branching point. Also a special labeling procedure is proposed for the right upper lobe. As an application of the automated nomenclature of br...

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