| BP网络应用于黄河水质的预测研究 |
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| 引用本文： | 陈丽华,常沁春,陈兴国,胡之德. BP网络应用于黄河水质的预测研究[J]. 兰州大学学报(自然科学版), 2003, 39(2): 53-56 |
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| 作者姓名： | 陈丽华 常沁春 陈兴国 胡之德 |
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| 作者单位： | 1. 兰州大学化学化工学院,甘肃,兰州,730000
2. 甘肃省环境监测中心站,甘肃,兰州,730030 |
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| 基金项目： | 国家民委 2 0 0 1年重点科研资助项目 |
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| 摘 要： | 利用黄河兰州段水质指标浓度时间序列作为学习样本，选取了DO、COD、氨氮、重金属离子等l0项指标作为输出参数，运用人工神经网络BP模型中的Levenberg—Marguardt优化算法对学习样本优化建模，将优化好的网络的预测结果与实测结果进行了比较，表明BP网络可以很好地用于黄河水质指标值及水质类别的预测。
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| 关 键 词： | 黄河 水质预测 BP网络 水质指标 Levenberg－Marguardt优化算法 水质评价 |
| 文章编号： | 0455-2059(2003)02-0053-04 |
| 修稿时间： | 2002-03-27 |
Using BP neutral network to predict the water quality of the Yellow River |
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| CH EN L i- hua,CH ANG Qin- chun,CH EN Xing- guo,H U Zhi- de. Using BP neutral network to predict the water quality of the Yellow River[J]. Journal of Lanzhou University(Natural Science), 2003, 39(2): 53-56 |
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| Authors: | CH EN L i- hua CH ANG Qin- chun CH EN Xing- guo H U Zhi- de |
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| Affiliation: | CH EN L i- hua1,CH ANG Qin- chun2,CH EN Xing- guo1,H U Zhi- de1 |
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| Abstract: | Concentration of water qualitative indexes oftime series in Lanzhou reaches of the Yellow Riv- er acted as studying samples.Ten indexes including DO,COD,NH3 - N,heavy metal ions and so on were target parameters.Studying samples were modeled and optimized with Levenberg- Marguardt algorithm of BP neutral network models.Comparison between the predicted results of the network and the deter- mined results indicated thatthe BP network can be satisfactorily used to predictwater qualitative indexes and classification of the Yellow River. |
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| Keywords: | water quality index BP network Levenberg- Marguardt algorithm |
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