Abstract: In this paper we propose and study the problem of the linear estimator in the large-scale regression system.Some good criteria,singular value functions of all kinds of estimator and a new method of classification have been given,too.

Key words: ill-condition system, multicollinearity, well-condition estimator, singular value function, basic group of estimators

摘要： 本文提出并研究了大型回归系统的线性估计问题,给出了实用的各种优良性标准及各种估计的奇异值函数,并对它们进行了新的分类。

关键词: 病态系统, 复共线性, 良性估计, 奇异值函数, 基本估计组