Every day, millions of cubic feet of natural gas is transported through interstate pipelines and consumed by customers all over the United States of America. Gas distributors, responsible for sending natural gas to individual customers, are eager for an estimate of how much natural gas will be used in the near future. GasHour(TM) software, a reliable forecasting tool from the Marquette University GasDay(TM) lab, has been providing highly accurate hourly forecasts over the past few years. Our goal is to improve current GasHour forecasts, and my thesis presents an approach to achieve that using a blending technique.;This thesis includes detailed explanations of the multi-horizon forecasting technique employed by GasHour models. Several graphs are displayed to reveal the structure of hourly forecasts from GasHour. We present SMHF (Smoothing Multi-horizon Forecasts), a step-by-step method showing how a polynomial smoothing technique is applied to current GasHour predications. A slightly different approach of smoothing has also been introduced.;We compare RMSEs of both GasHour forecasts and smoothed ones. Different comparisons resulting from different situations have been demonstrated as well. Several conclusions have been reached. Based on the results, blending techniques can improve current GasHour forecasts. We look forward to applying this blending technique to other fields of forecasting.
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机译:每天,数百万立方英尺的天然气通过州际管道运输,并被美国各地的客户消耗。负责向个人客户发送天然气的天然气分销商急切地希望在不久的将来能使用多少天然气。 GasHour(TM)软件是Marquette University GasDay(TM)实验室的可靠预测工具,在过去几年中一直提供高度准确的每小时预测。我们的目标是改善当前的GasHour预测,而本文提出了一种使用混合技术来实现这一目标的方法。本文对GasHour模型采用的多水平预测技术进行了详细说明。显示了一些图形来揭示GasHour的每小时天气预报的结构。我们介绍了SMHF(平滑多水平预测),这是一种逐步方法,显示了多项式平滑技术如何应用于当前的GasHour预测。还引入了一种略有不同的平滑方法。我们比较了GasHour预测和平滑后的RMSE。还证明了不同情况下的不同比较。已经得出了一些结论。根据结果,混合技术可以改善当前的GasHour预测。我们期待将这种混合技术应用于其他预测领域。
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