BIGDATA: F: DKA: Collaborative Research: High-Dimensional Statistical Machine Learning for Spatio-Temporal Climate Data

虽然统计机器学习在过去20年中取得了重大进展，但用于高维时空科学数据分析的严格方法并没有受到那么多的关注。另一方面，包括气候科学、生态学、环境科学和神经科学在内的几个核心科学领域正在产生越来越多的高分辨率时空数据。为了在未来几十年内在这些领域取得关键的科学突破，为这种复杂的高维时空数据开发严格的机器学习方法至关重要。该项目通过专注于两个关键的技术和科学领域为这些努力做出贡献：时空大数据分析和气候科学。该项目系统地发展了用于分析大规模复杂高维时空数据的统计机器学习基础，并将这些进展应用于气候科学中出现的问题，在这些问题中，数据总量将很快超过艾字节(1艾字节=1000拍字节)。该项目的技术工作有三个广泛和相互作用的组成部分：用于时空数据分析的结构化概率图形模型，用于多变量重尾分布的广义图形模型，以及具有更丰富的结构约束和捕捉多尺度现象的物理制导模型。该项目通过生成高分辨率的气候预测，将这些技术进步应用于气候科学。目前，由于当前气候模型缺乏必要的空间分辨率，难以对各种部门的影响、适应和脆弱性进行自动评估，包括城市规划、淡水资源、粮食安全、能源、交通系统、人类健康和沿海系统。

While statistical machine learning has seen major advances over the past two decades, rigorous approaches for high-dimensional spatio-temporal scientific data analysis have not received as much attention. On the other hand, several core scientific areas, including climate science, ecology, environmental sciences, and neuroscience, are generating increasing amounts of high-resolution spatio-temporal data. It is vital to develop rigorous machine learning approaches for such complex high-dimensional spatio-temporal data in order for key scientific breakthroughs in these areas in the next few decades. The project contributes to these endeavors by focusing on two key technical and scientific areas: spatio-temporal big data analysis and climate science. The project systematically develops the statistical machine learning foundations for the analysis of large scale complex high-dimensional spatio-temporal data, and applies such advances to problems arising in climate science, where the total amount of data is set to cross an Exabyte (1 Exabyte = 1000 Petabytes) soon. The technical work in the project has three broad and interacting components: structured probabilistic graphical models for spatio-temporal data analysis, generalized graphical models for multivariate heavy tailed distributions, and physics-guided models with a richer class of structural constraints and capturing multi-scale phenomena. The project applies these technical advances to climate science, by generating climate projections at high-resolutions. Currently, the lack of requisite spatial resolution of current climate models makes automatic assessments of impacts, adaptation and vulnerability (IAV) difficult for a variety of sectors, including urban planning, freshwater resources, food security, energy, transportation systems, human health, and coastal systems.