使用卡尔曼集成的Bi-GRU和Chi-square差异优化的时间序列 AQI预测
Narmeen Fatima1,2, Samia Nawaz Yousafzai3, Nadhem Nemri4
1Applied INTelligence Lab (AINTLab), Seoul, 05006, Republic of Korea.
Scientific reports
|August 9, 2025
概括
本研究引入了一个新的深度学习框架,用于准确的空气质量指数 (AQI) 预测,通过解决环境监测中的数据不确定性和缺失值来改善公共卫生.
科学领域:
- 环境科学 环境科学
- 数据科学数据科学数据科学
- 机器学习 机器学习
背景情况:
- 空气污染对全球健康构成重大风险,需要可靠的空气质量指数 (AQI) 预测系统.
- 当前的AQI预测模型在缺少数据,高可变性和分布不确定性方面扎,限制了它们的有效性.
- 准确的AQI预测对于公共卫生保护和环境政策制定至关重要.
研究的目的:
- 开发一个新的深度学习框架,用于强大的AQI时间序列预测.
- 解决现有模型的局限性,包括缺失的数据,数据变化和分布不确定性.
- 提高AQI预测的准确性和可靠性,以加强环境监测.
主要方法:
- 结合卡尔曼注意力与双向门式反复单元 (Bi-GRU) 进行动态不确定性处理和时间特征加权.
- 纳入基于千平方分歧的规范化术语,以最大限度地减少预测和实际污染物水平之间的分布不匹配.
- 使用特定污染物ARIMA模型计算缺失值,以保持时间依赖的趋势.
主要成果:
- 拟议的框架在AQI预测方面显示出与基线模型 (LSTM,CNN-LSTM) 相比的显著改进.
- 达到0.96794的高R平方值,表明模型性能强.
- 报告了4.11×10−5的平均平方误差 (MSE) 和0.000423的平均绝对误差 (MAE),这表明预测准确度很高.
结论:
- 新的深度学习框架有效地解决了AQI预测的关键挑战,包括不确定性,分布对齐和缺失的数据.
- 集成架构为环境监测提供了可扩展的解决方案,并支持基于证据的政策决策.
- 这项研究推进了AQI预测领域,为保护公众健康免受空气污染提供了更强大,更可靠的工具.
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