A comparison of two algorithms for warping of analytical signals

被引：176

作者：

Pravdova, V ^{[1
]}

Walczak, B ^{[1
]}

Massart, DL ^{[1
]}

机构：

[1] VUB, FABI, ChemoAC, Inst Pharmaceut, B-1090 Brussels, Belgium

来源：

ANALYTICA CHIMICA ACTA | 2002年 / 456卷 / 01期

关键词：

dynamic time warping; correlation optimized warping; preprocessing method;

D O I：

10.1016/S0003-2670(02)00008-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The alignment of analytical signals is an important preprocessing step when further analysis (e.g. PCA) requires the same lengths of all of them. Two techniques for alignment of profiles, namely dynamic time warping (DTW) and correlation optimized warping (COW) were tested and compared. The attention was focused on chromatographic and spectroscopic profiles. Simulated and two sets of real data were studied in this study. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：77 / 92

页数：16

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