基于粗糙集和群决策特征根法的区域水资源可再生性评价

【目的】基于水资源可再生的特点,将粗糙集理论引入到水资源可再生性评价中,建立区域水资源可再生性评价的准确方法。【方法】针对水资源系统信息的不确定性和不一致性以及水资源中经常遇到的群决策问题,将粗糙集理论和群决策特征根法相结合应用于水资源评价,即将粗糙集作为数据的预处理工具,先构造决策表,再用粗糙集进行属性约简,对约简后的指标集用多属性群决策的定量评价方法进行了评价。【结果】实例计算表明,因粗糙集能较好地处理不确定、不完备、不一致信息,故能得到更为准确、详细的评价结果。【结论】将粗糙集和群决策特征根法相结合用于水资源可再生性评价是可行的。

Renewable evaluation of regional water resources based on rough set and group eigenvalue method

Objective] Based on the renewable characteristic of water resources,rough set theory is introduced and the renewable evaluation accurate methods of regional water resources are established. Method] According to the uncertainty and inconsistency of the information of water resource system and the instance that the problems of group decision-making are always met in this domain, rough set theory and group eigenvalue method are combined to use in the evaluation of water resources. Rough set theory is used as a tool for the data pretreatment,firstly to make a decision table,then to make the reduction of attributes by rough set theory, and finally, to evaluate by the quantitative method of multiple-attribute group decision-making. Result] The example computed indicates that more accurate and detailed evaluation results can be obtained,because rough set can better deal with the data which are uncertain,imperfect and inconsistent. Conclusion] The combined use of rough set theory and group eigenvalue method in the renewable evaluation of water resources is feasible.