摘要
对一般情况下的称重模型进行了改进,得到了推广意义下的两个称重模型,并比较了两类模型的优劣.通过进一步的讨论,得出了关于物品重量的方差估计的几个重要结论.
A weighting model was improved under general conditions so that two weighting models were obtained in a broad sense and, then, compared to each other in respect of their superiority and inferiority. By means of further discussion, obtained several significant conclusions of variance evaluation of article weight.
出处
《兰州理工大学学报》
CAS
北大核心
2006年第4期155-157,共3页
Journal of Lanzhou University of Technology
关键词
方差估计
LS估计
称重模型
variance evaluation
least squares estimate
weighting model
