کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1152111 958270 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A simplified representation of the covariance structure of axially symmetric processes on the sphere
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آمار و احتمال
پیش نمایش صفحه اول مقاله
A simplified representation of the covariance structure of axially symmetric processes on the sphere
چکیده انگلیسی

Spatial processes having covariance functions that depend solely on the distance between locations are known as homogeneous. Many random processes on the sphere are not homogeneous, especially in the latitudinal dimension. As a result, we study a class of statistical processes that exhibit axial symmetry, whereby their covariance function depends on differences in longitude alone. We develop a new and simplified representation for a valid axially symmetric process, reducing computational complexity considerably. In addition, we explore longitudinally reversible processes and the construction of parametric models for axially symmetric processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Statistics & Probability Letters - Volume 82, Issue 7, July 2012, Pages 1346–1351
نویسندگان
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