SciELO - Scientific Electronic Library Online

vol.114 número3Communicating confidence in Mineral Resources and Mineral ReservesValidity range of the discrete Gaussian change-of-support model and its variant índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados



Links relacionados

  • En proceso de indezaciónCitado por Google
  • En proceso de indezaciónSimilares en Google


Journal of the Southern African Institute of Mining and Metallurgy

versión On-line ISSN 2411-9717
versión impresa ISSN 0038-223X


DEUTSCH, J.L.; SZYMANSKI, J.  y  DEUTSCH, C.V.. Checks and measures of performance for kriging estimates. J. S. Afr. Inst. Min. Metall. [online]. 2014, vol.114, n.3, pp.223-223. ISSN 2411-9717.

Block model estimates are commonly calculated by the well-established technique of kriging. The mathematics are well established, but implementation details require site-specific considerations. Checking and measuring the performance of the estimates is important to ensure the block model is suitable for its intended purpose. There are different criteria for long-term planning and short-term planning. The implementation of kriging should be checked with cross-validation and assessed for conditional bias and departure from theoretical optimality with the calculation of kriging efficiency. A new expression of kriging efficiency, which compares the kriging variance with the theoretically optimal kriging variance, is developed to aid in this assessment. The assessment tools presented here can be applied in a number of situations; however, ordinary kriging with a reasonably large search performs well in most cases.

Palabras clave : block model; kriging; variance.

        · texto en Inglés


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons