arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.05948math.NAcs.NA
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一种非网格的插值方案用于特征值问题

A non grid-based interpolation scheme for the eigenvalue problem

Universidade Federal de Itajubá(伊塔朱巴联邦大学);Universidade de São Paulo(圣保罗大学);Universidade Estadual Paulista(圣保罗州立大学)

Kai Lin, Wei-Liang Qian

AI总结:

本文提出一种非网格插值方法,利用查询点附近的数据信息,通过平衡精度与计算成本,实现对单变量和多变量函数的高效精确插值,并应用于特征值问题研究。

摘要:

我们提出了一种基于查询点附近收集的数据信息的非网格插值方案。作为一种非网格插值方法,数据点可以在小区域内随机分布,插值过程自然利用函数值及其高阶导数的信息。该方法的主要优势在于插值精度可根据数据量进行调整,通过适当选择数据收集区域的大小,可在精度与计算成本之间取得平衡。该方法适用于单变量和多变量函数。我们证明了所提方案是高效且精确的。随后,该方法被应用于特征值问题的研究。

英文摘要:

We propose a non grid-based interpolation scheme based on the information from the data collected from the vicinity of the query point. As a non-grid-based interpolation, the data points can be distributed randomly in a small region, and the interpolation is constructed so that it naturally makes use of the information not only on the function value but also on its higher order derivatives. The main advantage of the present approach is that the precision of the interpolation can be adjusted in accordance to the quantity of the data, in other words, a balance between the precision and the computational cost can be achieved by properly choosing the size of the neighborhood where the data points are collected. The method is applicable to univariate as well as multivariate functions. We show that the proposed scheme is efficient and precise. The present approach is then employed to study the eigenvalue problem.

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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