Economic Prediction Method of Port and Ocean Engineering Based on Grey Theory

Abstract

Zhang, W.; Li, X., and Zhang, J., 2020. Economic prediction method of port and ocean engineering based on grey theory. In: Yang, Y.; Mi, C.; Zhao, L., and Lam, S. (eds.), Global Topics and New Trends in Coastal Research: Port, Coastal and Ocean Engineering. Journal of Coastal Research, Special Issue No. 103, pp. 125–128. Coconut Creek (Florida), ISSN 0749-0208.There is a big error in the economic prediction of port and marine engineering, based on the grey theory, the economic prediction method of port and ocean engineering is put forward. Therefore, a method of economic prediction of port and ocean engineering based on grey theory is designed. First, the index system of economic association analysis between port and ocean engineering is established, then calculate the whole interval value with NPV, to evaluate the economy of port and ocean engineering, at last, the prediction of port and ocean engineering economy is completed by using grey theory method. Experimental comparison, the prediction error of this design prediction method is small, after repeated training of multiple samples, and correct the weight coefficient in the direction of reducing the error, satisfactory results obtained, so as to reduce the error of economic forecast of port and ocean engineering, it has certain practical significance.