短語詞組短語point detector estimator 點(diǎn)探測器估計(jì)reliability point estimator 可靠性點(diǎn)估計(jì)optimal Bayes robust point estimator 最優(yōu)Bayes穩(wěn)健點(diǎn)估計(jì)函數(shù) 返回 point estimator