...
首页> 外文期刊>Journal of complexity >Adaptive parameter choice for one-sided finite difference schemes and its application in diabetes technology
【24h】

Adaptive parameter choice for one-sided finite difference schemes and its application in diabetes technology

机译:单面有限差分方案的自适应参数选择及其在糖尿病技术中的应用

获取原文
获取原文并翻译 | 示例
           

摘要

In this paper we discuss the problem of approximation of the first derivative of a function at the endpoint of its definition interval. This problem is motivated by diabetes therapy management, where it is important to provide estimations of the future blood glucose trend from current and past measurements. A natural way to approach the problem is to use one-sided finite difference schemes for numerical differentiation, but, following this way, one should be aware that the values of the function to be differentiated are noisy and available only at given fixed points. Then (as we argue in the paper) the number of used point values is the only parameter to be employed for regularization of the above mentioned ill-posed problem of numerical differentiation. In this paper we present and theoretically justify an adaptive procedure for choosing such a parameter. We also demonstrate some illustrative tests, as well as the results of numerical experiments with simulated clinical data.
机译:在本文中,我们讨论了一个函数在其定义区间的端点处的一阶导数的逼近问题。该问题是由糖尿病治疗管理引起的,在糖尿病治疗管理中,重要的是要根据当前和过去的测量结果来估计未来的血糖趋势。解决该问题的一种自然方法是使用单边有限差分方案进行数值微分,但是按照这种方式,应该意识到要微分的函数的值是有噪声的,并且仅在给定的固定点可用。然后(正如我们在本文中所论证的),所使用的点值的数量是用于对上述不适定的数值微分问题进行正则化的唯一参数。在本文中,我们提出并从理论上证明了选择此类参数的自适应程序。我们还演示了一些说明性测试,以及带有模拟临床数据的数值实验的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号