کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9745527 1491575 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Duality in multivariate receptor models
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Duality in multivariate receptor models
چکیده انگلیسی
Multivariate receptor models are used for source apportionment of multiple observations of compositional data of air pollutants that obey mass conservation. Singular value decomposition of the data leads to two sets of eigenvectors. One set of eigenvectors spans a space in which source compositions are points and source contributions are hyperplanes. This space is shown to be dual to the space spanned by the second set of eigenvectors of the data in which source compositions are hyperplanes and source contributions are points. The analytical formulae for this duality are given. Finally, the duality principle is applied to greatly increase the computational speed of the Unmix multivariate receptor model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemometrics and Intelligent Laboratory Systems - Volume 77, Issues 1–2, 28 May 2005, Pages 59-63
نویسندگان
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