The concept of ranked set sampling was first introduced by McIntyre (1952) as a process of improving the precision of the sample mean as an estimator of the population mean. This is applicable whenever ranking of a set of sampling units can be done easily by a judgement method see, Chen et al. (2004). Ranking by judgement method is not recommendable if the judgement method is not mathematically...

Invasion by the non-native tree Tamarix has led to implementation of restoration projects aimed at maintaining the ecological integrity of many riparian communities in the southwestern United States. These restoration efforts may include Tamarix removal, manipulation of hydrologic regimes, and active revegetation of native species. The goal of this study was to determine which site characterist...

Vershik’s standardness criterion takes a particular form in the case of rn-adic filtrations, which we call Vershik’s intermediate level criterion in this paper. This criterion whose nature is combinatorial has been intensively used in the ergodic-theoretic literature, but it is not easily applicable by probabilists because it is stated in a language proper to the theory of measurable partitions...

Abstract Knowledge of hydraulic conductivity (K) is inevitable for sub-surface flow and aquifer studies. Hydrologists groundwater researchers are employing data-driven techniques to indirectly evaluate K using porous media characteristics as an alternative direct measurement. The study examines the ability Adaptive Neuro-Fuzzy Inference System (ANFIS) predict two membership functions (MFs), i.e...