It is more accurate of the forecasting results by the composite gray neural network model than that by the only gray models by comparison.

对比发现，利用组合灰色神经网络模型预测的位移值较单独的灰色模型预测的位移值具有更高的精度。

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Presents gray system method to analyse building thermal process. Proposes gray models for solar radiation intensity and the change of outdoor air temperature.

提出用灰色系统方法来分析建筑热过程的非确定性，给出太阳辐射照度和室外空气温度变化的灰色模型。

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The mathematical principles and models of gray relational analysis and BP neural network used to determine the source of water were introduced.

给出了灰色关联分析及BP神经网络进行判别分析的数学原理和模型。

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It was a week that was heavy with suits like at Burberry Prorsum where the models walked the runway in gray wool suits under puffer jackets with newsboy caps and umbrellas like corporate men braving the harsh winter to report to work.

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Highlights included a new wireless Bluetooth offering, as well as new colors for existing models: pink, orange, purple, blue and gray, in addition to the now-ubiquitous red.

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