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Data mining ocean model output at the naval oceanographic office major shared resource center

机译:海军海洋办公室主要共享资源中心的数据挖掘海洋模型输出

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One of the Computational Technology' Areas supported by the High Performance Computing Modernization Program is Climate, Weather, and Ocean (CWO) modeling. To this end, state-of-the-art computing architectures are leveraged against the extremely difficult problem of mathematically modeling and predicting the behavior of a variety of ocean climatological parameters. The problem at hand is the technology to store, retrieve, manipulate, and display these data has not kept pace with the computational technology. During the last five years, we have seen significant cost reductions associated with applying the status quo in visualization techniques to scientific data sets. This is due in large part to the computer gaming industry, driven by the huge profit margins associated with that market. The scientific community has benefited by these advances in low-cost architectures, but only as a by-product of its original intent, which is entertainment. Even so, these low-cost architectures are not designed to handle the scale of data sizes presented by the scientific community and serve only to make inadequate techniques cheaper to field and use. The Naval Oceanographic Office Major Shared Resource Center (NAVO MSRC) Visualization Center is challenged with providing its users state-of-the-art analysis environments for the interrogation of their increasingly large data sets. This paper deals with the data generated by the CWO community, all of whom work with large domains and high resolutions (either vertically, horizontally, or both) that all vary over time. This leads to very large data sets (rows x columns x layers x attribute per cell) for each time step and can challenge even the most powerful architectures when trying to extract or "mine" information from the raw data. As in most visualization applications, the model output deals with physical parameters that are invisible to the naked eye. This means effective methods of display are required for ocean circulation or currents, sea surface height, temperature, salinity, and so on. One analogy, which no doubt started the concept of "data mining," is that the raw data represent a huge block of ore from which gold nuggets of valuable information (features) must be extracted or mined. This paper concerns the technical solutions that were built to solve the challenges described above, including algorithms, data descriptions, and formats.
机译:高性能计算现代化计划支持的计算技术之一是气候,天气和海洋(CWO)建模。为此,最先进的计算架构利用数学造型和预测各种海洋气候参数的行为的极其困难的问题。手的问题是存储,检索,操纵和显示这些数据的技术并未与计算技术保持速度。在过去的五年中,我们已经看到,与将现状技术应用于科学数据集的可视化技术相关联的成本降低。这是由于与该市场相关的巨额利润率驱动的计算机游戏行业的大部分。科学界已经受到低价架构的这些进步,但仅作为其原始意图的副产品,这是娱乐。即便如此,这些低成本的架构并非设计用于处理科学界提供的数据规模的规模,仅用于使技术不充分的技术与现场和使用更便宜。海军海洋学办公室主要共享资源中心(Navo MSRC)可视化中心受到使用户最先进的分析环境的挑战,以便审讯其日益大的数据集。本文涉及CWO社区生成的数据,所有这些数据都与大型域和高分分辨率(垂直,水平,或两者)一起工作,这些都随着时间而变化。每次步骤,这导致非常大的数据集(每次X列x每个单元格X属性),并且在尝试从原始数据中提取或“挖掘”信息时,即使是最强大的架构也可能挑战。如在大多数可视化应用程序中,模型输出处理肉眼看不见的物理参数。这意味着海洋循环或电流,海表面高度,温度,盐度等所需的展示方法。一个类比,毫无疑问开始了“数据挖掘”的概念,是原始数据代表了一个巨大的矿石,必须提取或开采有价值信息(特征)的金块。本文涉及用于解决上述挑战的技术解决方案,包括算法,数据描述和格式。

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