加权累加生成及灰色WGM(1,1,λ,△t_k)模型

Weighting accumulated generating operation and the grey model of WGM (1,1,λ,△t_k)

在加权累加生成的基础上,建立了非等间隔的灰色WGM(1,1,λ,△tk)模型,提出了模型参数估计的最小一乘法,给出了求解最小一乘法的小生境遗传算法。应用这种方法,对油田的油层走向进行预测,取得了很好的效果。

On the basis of accumulated generating operation, this paper establishes a grey model of WGM (1, 1, λ, △tk) for unequal gap and proposes least absolute value for estimating parameters. Meanwhile, it gives niche genetic algorithm to solve problems in least absolute value. With application of the above means in forecasting the trend of oil level in the oil field, a satisfactory result is reached.