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Week-ahead Price Forecasting of Computer Accessories Based on BP and SVM

机译:基于BP和SVM的计算机配件预测

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摘要

Computer market becomes more sophisticated and price forecasting is gaining importance for market participants to adjust their market behavior. In the past, price forecasting of computer market is mainly concentrated in the forecasting of the computer itself such as desktops, laptops and so on. Whereas a contrast resolution is proposed to deal with this issue that forecasts price trends of computer market through price forecasting of main computer accessories which can make the forecasting window in advance. Two classic model, Back Propagation (BP) neural network and Support Vector Machine (SVM), are introduced to implement the week-ahead price forecasting of computer accessories. The simulation results show that SVM model is better than BP neural network model for its higher forecasting accuracy. Under the same forecasting conditions, the Relative Errors of SVM model is 1.87% lower than that of BP NN model and the mean absolute errors of SVM model is 17.91% lower than that of BP NN model. Therefore, price forecasting for computer accessories based on SVM is valuable and feasible for computer market which can provide richer and more accurate analysis information of price trends for market participants in advance, with a high reference value.
机译:计算机市场变得更加复杂,价格预测正在促使市场参与者调整其市场行为的重要性。在过去,计算机市场的价格预测主要集中在计算机本身的预测中,例如台式机,笔记本电脑等。虽然提出了对比度决议来处理此问题,但通过主要计算机配件的价格预测预测计算机市场的价格趋势,可以提前制作预测窗口。推出了两个经典模型,后传播(BP)神经网络和支持向量机(SVM),以实现计算机配件的一周前方价格预测。仿真结果表明,SVM型号优于其较高预测精度的BP神经网络模型。在相同的预测条件下,SVM模型的相对误差低于BP NN模型的1.87%,并且SVM模型的平均绝对误差比BP NN模型低17.91%。因此,基于SVM的计算机配件的价格预测是计算机市场的价值和可行的,可以提前提供更丰富,更准确的市场参与者价格趋势的分析信息,具有高参考价值。

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