摘要
针对传统农产品价格预测模型在大数据场景下无法快速准确对苹果市场价格进行预测的问题,提出一种基于分布式神经网络的苹果价格预测方法。首先,研究影响苹果市场价格的相关因素,选取苹果历史价格、替代品历史价格、居民消费水平和原油价格四个特征作为神经网络模型的输入;然后,构建蕴含价格波动规律的分布式神经网络模型,实现对苹果市场价格的短期预测。实验结果显示,基于分布式神经网络的苹果市场价格短期预测模型具有较高的预测精度,平均相对误差仅为0.50%,满足苹果市场价格预测的要求。实验结果表明,分布式神经网络模型能够通过自学习特性揭示出苹果市场价格的波动规律和发展趋势,所提方法能为稳定苹果市场秩序和市场价格宏观调控提供科学依据,有助于降低价格波动带来的危害,帮助果农规避市场风险。
Concerning the issue that the traditional price prediction model for agricultural product cannot predict the market price of apple quickly and accurately under the big data scenario,an apple price prediction method based on distributed neural network was proposed.Firstly,the relative factors that affect the market price of apple were studied,and the historical price of apple,historical price of alternatives,household consumption level and oil price were selected as the input of the neural network.Secondly,a distributed neural network prediction model containing price fluctuation law was constructed to implement the short-term prediction for the market price of apple.Experimental results show that the proposed model has a high prediction accuracy,and the average relative error is only 0.50%,which satisfies the requirements of apple market price prediction.It indicates that the distributed neural network model can reveal the price fluctuation law and development trend of apple market price through the characteristic of self-learning.The proposed method not only can provide scientific basis for stabilizing apple market order and macroeconomic regulation of market price,but also can reduce the harms brought by price fluctuations,helping farmers to avoid the market risks.
作者
刘斌
何进荣
李远成
韩宏
LIU Bin;HE Jinrong;LI Yuancheng;HAN Hong(College of Information Engineering,Northwest A&F University,Yangling Shaanxi 712100,China;Key Laboratory of Agricultural Internet of Things,Ministry of Agriculture and Rural Affairs(Northwest A&F University),Yangling Shaanxi 712100,China;Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service(Northwest A&F University),Yangling Shaanxi 712100,China;College of Mathematics and Computer Science,Yan’an University,Yan’an Shaanxi 716000,China;College of Computer Science and Technology,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China)
出处
《计算机应用》
CSCD
北大核心
2020年第2期369-374,共6页
journal of Computer Applications
基金
陕西省博士后基金资助项目(2016BSHEDZZ121)
中央高校基本科研业务费专项资金资助项目(2452019064)
中国博士后基金资助项目(2017M613216,2018M633585)
陕西省重点研发计划项目(2019ZDLNY07-06-01)
陕西省自然科学基础研究计划项目(2017JM6059,2018JQ6060)
国家自然科学基金重点项目(61834005)
延安大学博士科研启动项目(YDBK2019-06)~~