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In this paper, we consider the tourism forecasted method to forecast the demand for Guilin. At first, cubic polynomial and GM (1, 1) models are used to forecast tourism demand for Guilin from 1997 to 2010, respectively. Secondly, by comparing the accuracy of cubic polynomial and GM (1, 1) model, a combined model contained a parameter a, a epsilon [0, 1] is proposed. In order to obtain the best parameter...
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