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Federated learning based reference evapotranspiration estimation for distributed crop fields

delete2025-02-05
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OA
AI
M
Muhammad Tausif
M
Muhammad Waseem Iqbal
R
Rab Nawaz Bashir
B
Bayan Alghofaily
A
Alex Elyassih
A
Amjad Rehman Khan *
DOI:10.1371/journal.pone.0314921delete
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摘要

摘要

En 中文
水资源管理及可持续农业高度依赖准确的参考蒸散量(ETo)。已有研究尝试使用机器学习模型简化ETo估算。现有方法仅限于单一特定区域。需要对不同天气条件的多地开展ETo估算。本研究旨在提出一种基于联邦学习的方法,对多地不同天气条件下的ETo进行估算。传统集中式方法需将所有数据汇集一处,但由于隐私顾虑和数据传输限制,可能存在问题。而联邦学习可在本地训练模型并整合知识,从而在不同地区获得更具泛化性的ETo估算结果。选取巴基斯坦的三个地理位置,每个地点天气条件多样,利用2012至2022年所选三地的气象数据实施所提出的模型。在每个选定地点,评估三种机器学习模型——随机森林回归器(RFR)、支持向量回归器(SVR)和决策树回归器(DTR)——用于局部蒸散量(ET)估算及联邦全局模型。同时基于特征重要性分析评估各选定局部地点的气象参数对机器学习性能的影响。评估结果显示,基于随机森林回归器(RFR)的联邦学习优于其他模型,其决定系数(R2)= 0.97%,均方根误差(RMSE)= 0.44,平均绝对误差(MAE)= 0.33 mm day-1,平均绝对百分比误差(MAPE)= 8.18%。随机森林回归器(RFR)的性能为每个选定地点的局部机器学习模型提供了依据。分析结果表明,最高温度和风速是蒸散量(ET)预测中最具影响力的因素。
Keyword:
PREDICTION
MODELS

期刊

PLoS One 封面图
PLoS One
IF:
2.6
论文数:
2.6W
被引数:
81.6W

机构

S
super univ
学者数:
18
论文数: 15
被引数: 5
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