1·When errors is a ar (1) time series, we studied the quasi-likelihood equation for the semiparametric model, and investigated the existence of quasi-maximum likelihood estimators.
在误差为AR(1)时间序列的情形下,给出了半参数回归模型的拟极大似然估计方程,并研究了拟极大似然估计量的存在性。
1·The paper introduces generalized trapezoidal fuzzy number to describe risk rate, which adds a degree of confidence of estimators opinion.
引入广义梯形模糊数描述风险等级,增加了评价者的置信度指标。