利用邻域粗糙集的属性约简： 从数值数据计算约简，属性数据和它们的混合物与邻域粗糙集。 两种邻域的使用：清晰和模糊。-Use of neighborhood rough set attribute reduction: reduction from numerical data, attribute data and their mixtures with neighborhood rough set. The use of two kinds of neighborhoods: clea