Evaluation of Robust Estimators Applied to Fluorescence Assays

Autor: U. Ruotsalainen, J. T. Soini, E. Albán, J. Soukka, S. Peltonen, M. Västilä
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Zdroj: EURASIP Journal on Advances in Signal Processing, Vol 2008 (2007)
Druh dokumentu: article
ISSN: 1687-6172
DOI: 10.1155/2008/170497
Popis: We evaluated standard robust methods in the estimation of fluorescence signal in novel assays used for determining the biomolecule concentrations. The objective was to obtain an accurate and reliable estimate using as few observations as possible by decreasing the influence of outliers. We assumed the true signals to have Gaussian distribution, while no assumptions about the outliers were made. The experimental results showed that arithmetic mean performs poorly even with the modest deviations. Further, the robust methods, especially the M-estimators, performed extremely well. The results proved that the use of robust methods is advantageous in the estimation problems where noise and deviations are significant, such as in biological and medical applications.
Databáze: Directory of Open Access Journals