Filtering artifacts from lifetime distributions when maximizing entropy using a bootstrapped model.
Filtering artifacts from lifetime distributions when maximizing entropy using a bootstrapped model.
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DOI:
10.1016/j.ab.2012.04.008
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发表时间:
2012-08-01
影响因子:
2.9
通讯作者:
Steinbach PJ
中科院分区:
文献类型:
--
作者:
Steinbach PJ
The maximum entropy method (MEM) has been used in many studies to reliably recover effective lifetimes from kinetics, whether measured experimentally or simulated computationally. Here, recent claims made by Mulligan et al. regarding MEM analyses of kinetics (Anal. Biochem. 421 (2012) 181–190) are shown to be unfounded. Their assertion that their software allows “analysis of datasets too noisy to process by existing iterative search algorithms” is refuted with a MEM analysis of their triexponential test case with increased noise. In addition, it is shown that lifetime distributions recovered from noisy kinetics data with the MEM can be improved by using a simple filter when bootstrapping the prior model. When deriving the bootstrapped model from the lifetime distribution obtained using a uniform model, only the slower processes are represented as Gaussians in the bootstrapped model. Using this new approach, results are clearly superior to those of Mulligan et al. despite the presence of increased noise. In a second example, ambiguity in the interpretation of Poisson kinetics in the presence of scattered excitation light is resolved by filtering the prior model.
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影响因子:
4.8
作者:
SKILLING, J;BRYAN, RK
通讯作者:
BRYAN, RK
DOI:
10.1073/pnas.0905433106
发表时间:
2009-11-10
影响因子:
11.1
作者:
Abbruzzetti, Stefania;Faggiano, Serena;Viappiani, Cristiano
通讯作者:
Viappiani, Cristiano
影响因子:
3.3
作者:
Kumar, ATN;Zhu, LY;Champion, PM
通讯作者:
Champion, PM
影响因子:
4.4
作者:
ISENBERG, I
通讯作者:
ISENBERG, I
影响因子:
2.9
作者:
STEINBACH, PJ;ANSARI, A;YOUNG, RD
通讯作者:
YOUNG, RD