In the fields of chemistry and chemical engineering, most of the data mining problems are actually "ill-posed problems" .
化学、化工领域中多数数据处理问题属于数学中的“不适定问题”(ill-posed problem),而传统的化学计量学算法如线性和非线性回归,人工神经网络等忽略了这一特点,将其作为“适定问题”(well-posed problem)求解,是引发数据处理中“过拟合”问题的重要原因。
A regularizing Lanczos method is presented for the solution of the linear ill-posed problem.
本文将该问题离散化为欠定线性不适定问题,提出求解欠定线性不适定问题的正则化L anczos方法。
Sideways heat equation is a typical ill-posed problem.
热传导终端反问题是典型的不适定问题,应用基于全变差的正则化方法来获得它的稳定数值解,将近似解的求解范围由连续函数空间扩大到了有界变差函数空间,并将固定点迭代法用于求解非线性的Euler方程,并进行了理论分析和数值实验。
The Regularization Theory for Ill-posed Problems and Application;
不适定问题的正则化理论及其应用
The canonical TSVD method is a good regularized method for solving linear ill-posed problems, and we adopt the bisection method with inverse iteration to effectively realize canonical TSVD method.
典则TSVD方法是求解线性不适定问题的一个好正则化方法,而采用二分法结合反迭代法能有效数值实现典则TSVD方法。
Theoretically,canonical truncated singular value decomposition(TSVD) is considered a good regularization method in solving ill-posed problems.
典则TSVD方法是求解线性不适定问题的一种很好的正则化方法。
This paper presents the definition of ill posed problem and its applications.
对不适定问题的严密定义、数学模型、求解方法及其各方面应用作了系统的介绍 ,着重论述了传热反问题的几种数学表述及其近 5a来的相关发展 ,较详细列举了不适定问题求解的几种主要算法 ,并介绍了新近出现的一些计算思路及模式 ,最后探讨了结合并行计算完善与改造已有算法的可能
The ill posed initial value problem of the Euler Equations and the formal solvability of ill posed problem based on stratification theory is discussed.
以分层理论为基础,讨论了Euler方程不适定的初值问题以及不适定问题的形式可解性,并给出了某些不适定初值问题存在形式解的条件与计算方法· 特别讨论了R4中的超平面{t=0}上初值问题的适定性并给出了存在不唯一解的例证·
A new solution is proposed to the ill-posed inverse problem,i.
提出了一种在最小坡度曲线段中选择Tikhonov正则化参数的新方法用于求解这一不适定反问题。
Under this method can solve the robust estimation of ill-posed problems in geodesy.
这种方法可以用于解决大地测量中的不适定性问题。
numerical method for improperly posed problems
不适定问题数值解法
Stable Algorithms Design and Application on Ill-Posed Problems;
不适定问题的稳定化算法设计及应用
Study on Numerical Methods of Discrete Ill-Posed Problem in Inverse Problem;
反问题中离散不适定问题的数值求解方法
ILL-Posed Study on Identification of Moving Loads on Bridges;
桥梁移动荷载识别的不适定问题研究
Tikhonov Regularization for Solving Ill-posed Problems
Tikhonov正则法在解决不适定问题的应用
Nonlinear Implicit Iterative Method for Solving Nonlinear Ill-Posed Problems
求解非线性不适定问题的隐式迭代法
ERROR ESTIMATES OF FINITE DIMENSIONAL REGULARIZED METHOD FOR SOLVING ILL-POSED PROBLEM
有限维正则化方法求解不适定问题的误差估计
Research on the Regularization Solutions of Ill-Posed Problems in Geodesy;
大地测量中不适定问题的正则化解法研究
Several Type of Iterative Methods for Solving Nonlinear Ill-Posed Problems
求解非线性不适定问题的几类迭代方法
Research on the Non-classical Regularization Methods for Some Ill-posed Problems
求解几类不适定问题的非经典正则化方法研究
Several Regularization Methods for Ill-Posed Problems and Their Numerical Realization
几种不适定问题的正则化方法及其数值实现
Some Newton-Type Regularization Methods with Double Parameters for Solving Nonlinear Ill-Posed Problems;
求解非线性不适定问题的几种双参数Newton型正则化方法
Nonlinear Implicit Iterative Method and Regularization GMRES Method for Solving Ill-posed Problems
求解不适定问题的非线性隐式迭代法和正则化GMRES方法
It is not fit that I should decide this question.
由我来决定这个问题是不合适的。
LP-Well-posedness of Several Classes of Constrained Variational Inequalities Problems;
几类约束变分不等式问题的LP-适定性
First,the Tikhonov regularization method is employed to solve the ill-posed inverse problem.
首先利用Tik-honov正则化法求解不适定逆问题;
Why don't we discuss it after you decide if I'm fit for the position?
是不是等你确定我是合适人选后，我们再来讨论这个问题呢？
a verdict resulting from improper compromises between jurors on material issues.
陪审委员之间就关键性问题做出的不适当的妥协决定。