کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
506967 | 865080 | 2010 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A computer package for modeling and simulating regionalized count variables
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Regionalized variables with discrete distributions are commonly associated with counts of individuals (precious stones in ore deposits, wild animals in ecosystems, trees in forests, etc.), that can be represented by a spatial point process. In this paper, we propose to model the point distribution by a Cox process, i.e., a Poisson point process with a random regionalized intensity. The model is parsimonious and versatile, as it allows fitting the histogram of the count variable, its variogram and madogram. Simulation conditional to data is performed by recourse to iterative algorithms based on the Gibbs sampler. Computer programs are provided for parameter inference and for simulation, and an application to a forestry dataset is presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Geosciences - Volume 36, Issue 1, January 2010, Pages 24–33
Journal: Computers & Geosciences - Volume 36, Issue 1, January 2010, Pages 24–33
نویسندگان
Xavier Emery, Jaime Hernández,