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Simulation of the usage of Gaussian mixture models for the purpose of modelling virtual mass spectrometry data

Plechawska, M.łg.; Polańska, J.

Studies in Health Technology and Informatics 150: 804-808

2009

ISSN/ISBN: 0926-9630
PMID: 19745424
Document Number: 635745
This article presents the method of the processing of mass spectrometry data. Mass spectra are modelled with Gaussian Mixture Models. Every peak of the spectrum is represented by a single Gaussian. Its parameters describe the location, height and width of the corresponding peak of the spectrum. An authorial version of the Expectation Maximisation Algorithm was used to perform all calculations. Errors were estimated with a virtual mass spectrometer. The discussed tool was originally designed to generate a set of spectra within defined parameters.

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