摭谈古典诗歌中的虚实效应

中国是诗的国度,千百年来,诗歌一直广受人们的喜爱。1994年诗歌鉴赏被列为高考必考内容,2002年高考对古典诗歌鉴赏的考查又从纯客观选择题型变为主观题型,更说明了古诗鉴赏在继承民族文化传统、弘扬民族精神、强化审美教育等方面所具有的重要意义。然而,古诗鉴赏也是当前中学生普遍感到头痛的问题,尽管老师们从题型分析、解题技巧。

Bayes Estimation of Causal Effect for a Counterfactural Model

This paper presents the Bayes estimation and empirical Bayes estimation of causal effects in a counterfactual model. It also gives three kinds of prior distribution of the assumptions of replaceability. The experiment shows that empirical Bayes estimation is better than other estimations when not knowing which assumption is true.