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变形监测工程是一个复杂的综合系统,各种参数具有很大的不确定性。目前变形的预测分析多采用单一的预测方法,而各种方法都有各自的优缺点和应用范围,有时单一的预测方法对判定工程性质带来了困难。引入了组合预测的思想,在灰色GM(1,1)模型的基础上,构建了灰色+GA+BP神经网络组合模型,探索了时间序列的数据处理和预报问题,通过实例计算分析,证明该组合模型满足工程需要,具有一定的使用价值。 更多还原

【Abstract】 Because of various parameters have great uncertainty,deformation monitor project is a complicated integrated system.At present deformation prediction and analysis using a single forecasting methods,but each method has their own application scope.Sometimes a single forecasting method made it difficult to determine the nature of projects.This paper introduced the idea of combination forecasting,based on the gray GM(1,1) model,Construction of the gray + GA + BP neural networks combination models,ex... 更多还原