arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.01238cs.LGstat.APstat.ML
收藏

对地观测中的高斯过程

A Perspective on Gaussian Processes for Earth Observation

Universitat de València(瓦伦西亚大学);University of Oxford(牛津大学);German Aerospace Center(德国航空航天中心);Max Planck Institute for Biogeochemistry(马克斯·普朗克生物地球化学研究所)

Gustau Camps-Valls, Dino Sejdinovic, Jakob Runge, Markus Reichstein

摘要:

通过航空和卫星遥感以及现场观测进行的地球观测在监测我们的地球方面发挥着重要作用。在过去的十年中,机器学习和高斯过程(GPs),特别是取得了出色的结果,在当地和全球范围内以时间分辨的方式从所获得的图像的生物地球物理变量的估计。全球定位系统不仅提供准确的估计,但也有原则的不确定性估计的预测,可以很容易地容纳来自不同的传感器和多时间采集的多模态数据,允许引入物理知识,不确定性量化和误差传播的正式处理。尽管在正向和逆向建模方面取得了很大的进展,GP模型仍然面临着重要的挑战,在这篇透视论文中进行了修订。GP模型应该朝着数据驱动的物理感知模型发展,这些模型尊重信号特征,与物理学基本定律保持一致,并从纯回归转向观察因果推理。

英文摘要:

Earth observation (EO) by airborne and satellite remote sensing and in-situ observations play a fundamental role in monitoring our planet. In the last decade, machine learning and Gaussian processes (GPs) in particular has attained outstanding results in the estimation of bio-geo-physical variables from the acquired images at local and global scales in a time-resolved manner. GPs provide not only accurate estimates but also principled uncertainty estimates for the predictions, can easily accommodate multimodal data coming from different sensors and from multitemporal acquisitions, allow the introduction of physical knowledge, and a formal treatment of uncertainty quantification and error propagation. Despite great advances in forward and inverse modelling, GP models still have to face important challenges that are revised in this perspective paper. GP models should evolve towards data-driven physics-aware models that respect signal characteristics, be consistent with elementary laws of physics, and move from pure regression to observational causal inference.

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。

↑