Statistical algorithms for particle trajectography

F. Magniette

doi:10.1016/j.cpc.2018.05.023

2018-11-01

F. Magniette *

DOI：10.1016/j.cpc.2018.05.023

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摘要

En 中文

The various algorithms used to extrapolate particle trajectories from measurements are often very time-consuming with computational complexities which are typically quadratic. In this article, we propose a new algorithm called GEM with a lower complexity and reasonable performance on linear tracks. It is an extension of the EM algorithm used to fit Gaussian mixtures. It works in arbitrary dimension and with an arbitrary number of simultaneous particles. In a second part, we extend it to circular tracks (for charged particles) and even a mix of linear and circular tracks. This algorithm is implemented in an open-source library called libgem and two applications are proposed, based on data-sets from two kinds of particle trackers. (C) 2018 Elsevier B.V. All rights reserved.

Keyword:

Particle tracking

Algorithm

Multiple linear regression

Multiple circular regression

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期刊

Computer Physics Communications

IF:

3.4

论文数:

1.2W

被引数:

3.7W

机构

institut polytechnique de paris

学者数:

1.3W

论文数: 1.0W

被引数: 6

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