کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
416866 681409 2012 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase and amplitude-based clustering for functional data
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
Phase and amplitude-based clustering for functional data
چکیده انگلیسی

Functional data that are not perfectly aligned in the sense of not showing peaks and valleys at the precise same locations possess phase variation. This is commonly addressed by preprocessing the data via a warping procedure. As opposed to treating phase variation as a nuisance effect, it is advantageous to recognize it as a possible important source of information for clustering. It is illustrated how results from a multiresolution warping procedure can be used for clustering. This approach allows us to address detailed questions to find local clusters that differ in phase, or clusters that differ in amplitude, or both simultaneously.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Statistics & Data Analysis - Volume 56, Issue 7, July 2012, Pages 2360–2374
نویسندگان
, , ,