The urban land of Xiamen Island is classified into seven categories using the hierarchical classification method, and the classification results are verified.
利用分层分类法把厦门岛城市土地类型分为七类，并对分类结果进行了验证。
Hierarchical classification systems provide a granular method of categorizing objects according to business need.
分层结构的分类系统提供了一种根据业务需要对对象进行分类的细粒度方法。
According to the hierarchical principle, a classification method is presented based on the combination of rough set theory and BP neural network.
根据分层递阶的原则，提出一种将粗糙集理论与BP神经网络相结合的分类算法。
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