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What is Spatial Variability

Chapter 23
Handbook of Research on Modeling, Analysis, and Application of Nature-Inspired Metaheuristic Algorithms
Spatial variability occurs when a quantity that is measured at different spatial locations exhibits values that differ across the locations. Spatial variability can be assessed using spatial descriptive statistics such as the range.
Published in Chapter:
Determination of Spatial Variability of Rock Depth of Chennai
Pijush Samui (National Institute of Technology Patna, India), Viswanathan R. (Galgotias University, India), Jagan J. (VIT University, India), and Pradeep U. Kurup (University of Massachusetts – Lowell, USA)
Copyright: © 2018 |Pages: 18
DOI: 10.4018/978-1-5225-2857-9.ch023
Abstract
This study adopts four modeling techniques Ordinary Kriging(OK), Generalized Regression Neural Network (GRNN), Genetic Programming(GP) and Minimax Probability Machine Regression(MPMR) for prediction of rock depth(d) at Chennai(India). Latitude (Lx) and Longitude(Ly) have been used as inputs of the models. A semivariogram has been constructed for developing the OK model. The developed GP gives equation for prediction of d at any point in Chennai. A comparison of four modeling techniques has been carried out. The performance of MPMR is slightly better than the other models. The developed models give the spatial variability of rock depth at Chennai.
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