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Application of artificial neural network theory in optimizing indexes

LI Ji rui\+1,\ ZHANG Sheng rui\+2 (1 Liaoning Provincial Highway Management bureau,Shenyang 110005,China;2 Changan University,Xian 710064,China)  
Combined with the limitation of optimizing indexes theory of comprehensive evaluation, this paper studied the contribution analysis of output value with artificial neural network,then it deletes the indexes which not important or weak influence. It takes important accordance of optimizing indexes in creating model,comprehensive evaluation and making policy etc.
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