Multi-objective comprehensive evaluation approach to a river health system based on fuzzy entropy

摘要

The process of river health evaluation is subject to uncertainty and complexity. To addressrnthis, we establish a river health evaluation system based on entropy and multi-objectivernspace theory. We apply an analytic hierarchy process (AHP) to calculate the weight of thernfirst grade indexes, and then apply the entropy to calculate the weight of the second indexes.rnIn this way, the health measure can be considered in terms of objective data and a subjectivernclassification. The results of the computation show that the whole system provides a goodrnmeasure of the health. The results express the measurement of the health of the river onrndifferent levels and for different aspects, which indicates that the evaluation method isrnfeasible.