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arXiv 2205.09016cs.LG
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高分辨率作物产量预报的弱监督框架

A weakly supervised framework for high-resolution crop yield forecasts

Wageningen University and Research(瓦赫宁根大学及研究中心)

Dilli R. Paudel, Diego Marcos, Allard de Wit, Hendrik Boogaard, Ioannis N. Athanasiadis

摘要:

用于作物产量预测的预测器输入和标签数据并非总是以相同的空间分辨率提供。我们提出了一个深度学习框架,该框架使用高分辨率输入和低分辨率标签来生成两个空间级别的作物产量预测。利用低分辨率的作物面积和产量统计数据,通过弱监督对预测模型进行了校正。我们通过将欧洲的区域产量从母统计区域分解为五个国家(德国,西班牙,法国,匈牙利,意大利)和两种作物(软质小麦和马铃薯)的子区域来评估该框架。将弱监督模型的性能与线性趋势模型和服从提升决策树(GBDT)进行了比较。更高分辨率的作物产量预测对政策制定者和其他利益攸关方有用。弱监督深度学习方法提供了一种即使在缺乏高分辨率产量数据的情况下也能产生这种预测的方法。

英文摘要:

Predictor inputs and label data for crop yield forecasting are not always available at the same spatial resolution. We propose a deep learning framework that uses high resolution inputs and low resolution labels to produce crop yield forecasts for both spatial levels. The forecasting model is calibrated by weak supervision from low resolution crop area and yield statistics. We evaluated the framework by disaggregating regional yields in Europe from parent statistical regions to sub-regions for five countries (Germany, Spain, France, Hungary, Italy) and two crops (soft wheat and potatoes). Performance of weakly supervised models was compared with linear trend models and Gradient-Boosted Decision Trees (GBDT). Higher resolution crop yield forecasts are useful to policymakers and other stakeholders. Weakly supervised deep learning methods provide a way to produce such forecasts even in the absence of high resolution yield data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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