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A Gaussian-sum filter for vertex reconstruction
Veröffentlicht am 28.02.2006 in Computer Physics Communications 174 (2006) 935–947

A vertex reconstruction algorithm that is based on the Gaussian-sum filter (GSF) was developed and implemented in the framework of the CMS

reconstruction program. While linear least-square estimators are optimal in case all observation errors are Gaussian distributed, the GSF offers a

better treatment of non-Gaussian distributions of track parameter errors when these are modeled by Gaussian mixtures. The algorithm has been

verified and evaluated with simulated data. The results are compared to the Kalman filter and to an adaptive vertex estimator.


Autoren: Rudolf Frühwirth

weitere Autoren: T. Speer


Kategorie: Reviewed Paper