absolutely unbiased estimation的用法和样例：
- absolutely unbiased estimator
- absolutely unbiased estimative
- A two-stage method for system identification based on asymptotic theory was proposed.Firstly, an unbiased estimation and its frequency variance were obtained by the high-order ARX model.
- Foreign academics find that the analysts’ forecasts of companies’ future earnings are not usually unbiased estimation, but a positive bias always added, and there is underreaction to information.