| BP模型的改进及其在大气污染预报中的应用 |
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| 引用本文： | 王俭,刘振山,等.BP模型的改进及其在大气污染预报中的应用[J].城市环境与城市生态,2002,15(5):17-19. |
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| 作者姓名： | 王俭 刘振山 |
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| 作者单位： | [1]东北大学资源与土木工程学院安全环境系，沈阳110004 [2]沈阳市环境监测中心站，沈阳110015 |
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| 摘 要： | 针对传统BP模型存在着训练速度较慢、局部极值以及最佳网络结构无法准确确定的不足，进行了改进，应用于城市空气污染预报，建立大气污染浓度的神经网络预测模型。计算结果表明，应用改进的BP模型进行大气污染预报能够得到更好的预测结果，具有很强的实用性。
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| 关 键 词： | BP模型 大气污染预报 人工神经元网络 遗传算法 |
Improvement and Application of BP Model in Prediction of Atmospheric Pollution |
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| WANG Jian ,HU Xiao-min ,ZHENG Long-xi ,LIU Zhen-shan.Improvement and Application of BP Model in Prediction of Atmospheric Pollution[J].Urban Environment & Urban Ecology,2002,15(5):17-19. |
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| Authors: | WANG Jian HU Xiao-min ZHENG Long-xi LIU Zhen-shan |
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| Institution: | WANG Jian 1,HU Xiao-min 1,ZHENG Long-xi 1,LIU Zhen-shan 2 |
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| Abstract: | According to the deficiency of traditional BP model in the slow training speed, the local minimum and the uncertainty on the best structure of neural network, BP model is improved and applied to urban atmospheric pollution prediction.A neural network prediction model of atmospheric pollutant concentration is set up. The results have showed that higher prediction precision and the efficient utility can be achieved by using improved BP model. |
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| Keywords: | artificial neural network BP model atmospheric pollution prediction Genetic Algorithm (GA) |
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