吉林大学学报(地球科学版) ›› 2016, Vol. 46 ›› Issue (2): 563-568.doi: 10.13278/j.cnki.jjuese.201602206
秦喜文1,2,3, 刘媛媛2, 王新民2, 董小刚2, 张瑜2, 周红梅2
Qin Xiwen1,2,3, Liu Yuanyuan2, Wang Xinmin2, Dong Xiaogang2, Zhang Yu2, Zhou Hongmei2
摘要:
为了更好地掌握大气中PM2.5浓度的变化规律,利用EEMD-SVR混合模型对该地区的PM2.5浓度值进行了短期预测。首先,通过采用整体经验模态分解(EEMD)方法分析北京市PM2.5,把原始时间序列分解成多个固有模态函数和趋势项;然后,对各阶固有模态函数进行周期性分析,揭示了北京市PM2.5的周期性变化特点;最后,对经过EEMD分解后的各阶固有模态函数和趋势项用支持向量机回归(SVR)方法进行预测。结果表明, EEMD-SVR混合模型比单一的SVR模型预测精度更高。
中图分类号:
[1] 刘贺,张弘强.基于粒子群优化神经网络算法的深基坑变形预测方法[J].吉林大学学报(地球科学版),2014,44(5):1609-1614. Liu He, Zhang Hongqiang. A Prediction Method for the Deformation of Deep Foundation Pit Based on the Particle Swarm Optimization Neural Network[J]. Journal of Jilin University(Earth Science Edition), 2014,44(5):1609-1614.[2] 蒋玲玲,熊德琪,张新宇.大连滨海湿地景观格局变化及其驱动机制[J].吉林大学学报(地球科学版),2008,38(4):673-674. Jiang Lingling, Xiong Deqi, Zhang Xinyu. Change of Landscape Pattern and Its Driving Mechanism of the Coastal Wetland in Dalian City[J].Journal of Jilin University(Earth Science Edition),2008,38(4):673-674.[3] 董志颖,李兵,孙晶.GIS支持下的吉林西部水质预警系统[J].吉林大学学报(地球科学版),2003,33(1):56-58. Dong Zhiying, Li Bing, Sun Jing. The Research of Forecast of Water Quality in the Western Part of Jilin Province by Means of GIS[J].Journal of Jilin University(Earth Science Edition),2003,33(1):56-58.[4] 潘保芝, 石玉江, 蒋必辞.致密砂岩气层压裂产能及等级预测方法[J]. 吉林大学学报(地球科学版), 2015, 45(2):649-654. Pan Baozhi, Shi Yujiang, Jiang Bici.Research on Gas Yield and Level Predition for Post-Frac Tight Sandstone Reservoirs[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(2):649-654.[5] 张艺耀,苗冠鸿.影响PM2.5因素的多元统计分析与预测[J].资源节约与环保,2013(11):13-16. Zhang Yiyao, Miao Guanhong. The Factors Affecting PM2.5 and PM2.5 Forecasting Based on Multivariate Statistical Analysis[J].Resource Economization & Environment Protection, 2013(11):13-16.[6] 张怡文,胡静宜,王冉.基于神经网络的PM2.5预测模型研究[J].江苏师范大学学报(自然科学版),2015, 33(1):63-65. Zhang Yiwen, Hu Jingyi, Wang Ran. PM2.5 Prediction Model Based on Neural Network[J].Journal of Jiangsu Normal University (Natural Science Edition), 2015, 33(1):63-65.[7] 王敏, 邹滨, 郭宇. 基于BP人工神经网络的城市PM2.5浓度空间预测[J].环境污染与防治,2013,35(9):63-70. Wang Min, Zou Bin, Guo Yu. BP Artificial Neural Network-Based Analysis of Spatial Variability of Urban PM2.5 Concentration[J].Environmental Pollution & Control,2013,35(9):63-70.[8] Zhou Qingping, Jiang Haiyan. A Hybrid Model for PM2.5 Forecasting Based on Ensemble Empirical Mode Decomposition and a General Gegression Neural Network[J]. Science of the Total Environment,2014, 496:264-274.[9] Huang N E,Shen Z. The Empirical Mode Decomposition and Hillbert Spectrum for Nonlinear and Non-stationary Time Series Analysis[J]. Proceedings of the Royal Society London, 1998,454:903-995.[10] Wu Zhaohua,Huang Norden E.A Study of the Ch-aracteristics of White Noise Using the Empirical Mode Decomposition Method[J].Proceedings of the Royal Society,2004, 460:1597-1611.[11] Vapnik V. The Nature of Statistical Learning Theory[M]. New York:Springer-Verlag, 1995.[12] 刘子阳,郭崇慧.应用支持向量回归方法预测胎儿体重[D].大连:大连理工大学,2005. Liu Ziyang, Guo Chonghui. Fetal Weight Prediction by Using Support Vector Regression[D].Dalian:Dalian University of Technology,2005.[13] 范瑜,邹塞.徐州市春季PM10及PM2.5污染来源分析[J].环境科技,2014,27(2):49-52. Fan Yu, Zou Sai.Analysis of the PM10& PM2.5 Pollution Sources of Xuzhou in Spring[J].Environmental Science and Technology, 2014,27(2):49-52.[14] 蔡赟姝,卢志明.基于经验模态分解的上证综合指数时间序列分析[J].上海大学学报(自然科学版),2012,18(4):384-389. Cai Yunshu, Lu Zhiming.The Shanghai Composite Index Time Series Analysis Based on Empirical Mode Decomposition[J].Journal of Shanghai University(Natural Science Edition),2012,18(4):384-389. |
[1] | 王洁, 宫辉力, 陈蓓蓓, 高明亮, 周超凡, 梁悦, 陈文锋. 基于Morlet小波技术的北京平原地面沉降周期性分析[J]. 吉林大学学报(地球科学版), 2018, 48(3): 836-845. |
[2] | 董烈乾, 李振春, 刘磊, 李志娜, 桑运云. 基于经验模态分解的曲波阈值去噪方法[J]. J4, 2012, 42(3): 838-844. |
[3] | 葸晓宇,刘 洪. HHT方法在研究地震旋回体中的应用[J]. J4, 2007, 37(3): 624-0628. |
|