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考虑到大量的输入属性可能导致复杂的BPNN,研究了用启发式方法和并行穷举方法约简属性的方法。
As complex information system usually contains large amount of attributes which can be used as the input variables of a model, it may bring about constructing a complicated BPNN.
穷举法是根据各个自变量所有可能取值相对应的函数值(输出值)寻找参数特征的一种分析方法。
Exhaustive method is an analysis method that looks for parameter property according to all obtainable corresponding function values (output values) for various independent variables.
解决这些问题的传统方法多采用解析法和穷举法,但这些方法都存在不同程度的缺点。
Analysis method and enumeration method are adopted to solve these problems traditionally, yet they have different defects in some aspects.
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