For the shortage of the traditional evaluation methods of the urban economy, A new evaluation model proposed, establishing an index system of evaluation and decision table on city economy, and extracting important properties of input data from Rough Set and neural network, and evaluation indexes reduced as input of neural network to realize the city's economic strength evaluation, then, using programming with MATLAB and realizing the simulation of rough set and neural network evaluation model, at the same time, consistenting with traditional network model results.
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