کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1180970 1491549 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
SCREAM: A novel method for multi-way regression problems with shifts and shape changes in one mode
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
SCREAM: A novel method for multi-way regression problems with shifts and shape changes in one mode
چکیده انگلیسی

Some fields where calibration of multi-way data is required, such as hyphenated chromatography, can suffer of high inaccuracy when traditional N-PLS is used, due to the presence of shifts or peak shape changes in one of the modes. To overcome this problem, a new regression method for multi-way data called SCREAM (Shifted Covariates REgression Analysis for Multi-way data), which is based on a combination of PARAFAC2 and principal covariates regression (PCovR), is proposed. In particular, the algorithm combines a PARAFAC2 decomposition of the X array and a PCovR-like way of computing the regression coefficients, analogously to what has been described by Smilde and Kiers (A.K. Smilde and H.A.L. Kiers, 1999) in the case of other multi-way PCovR models. The method is tested on real and simulated datasets providing good results and performing as well or better than other available regression approaches for multi-way data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemometrics and Intelligent Laboratory Systems - Volume 129, 15 November 2013, Pages 64–75
نویسندگان
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