In this paper,a kind of new relative efficiency is introduced to measure parameter's least square estimator in singular linear model,its relation to another two kinds of efficiency is given,and the lower bound and upper bound of the relative efficiencies
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王慧.奇异线性模型最小二乘估计的相对效率[J].重庆工商大学学报(自然科学版),2007,(6): WANG Hui. The relative efficiency of the least square estimation in singular linear model[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2007,(6):