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Title: Interval-valued random functions and the kriging of intervals

Journal Article · · J. Int. Assoc. Math. Geol.; (United States)
DOI:https://doi.org/10.1007/BF00890251· OSTI ID:6288062

Estimation procedures using data that include some values known to lie within certain intervals are usually regarded as problems of constrained optimization. A different approach is used here. Intervals are treated as elements of a positive cone, obeying the arithmetic of interval analysis, and positive interval-valued random functions are discussed. A kriging formalism for interval-valued data is developed. It provides estimates that are themselves intervals. In this context, the condition that kriging weights be positive is seen to arise in a natural way. A numerical example is given, and the extension to universal kriging is sketched.

Research Organization:
Univ. of Queensland, St. Lucia (Australia)
OSTI ID:
6288062
Journal Information:
J. Int. Assoc. Math. Geol.; (United States), Vol. 20:3
Country of Publication:
United States
Language:
English