According to that, the research put forward a new method for optimizing designing of greenhouses' structures completely based on the analysis of the tests data and the importance of the attribute.
并以此为基础，提出了一种基于试验数据分析和试验条件属性重要性的日光温室结构优化的方法。
In the paper, the representation of the spatial element and attribute data, the spatial analysis and measuring are studied detail.
对空间要素的表示方法，属性数据的表示方法和空间分析，空间量算问题作了详细研究。
Four kinds of condition entropy are defined in this paper. Accordingly, four kinds of entropy based methods for the attribute reduction in the rough set data analysis are proposed.
本文定义了四种条件熵，并在此基础上提出了四种基于熵的方法，以用于粗糙集数据分析中的属性简约。
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