家国旧情迷纸上，兴亡遗恨照灯前——陈三立“崎庐诗”主题思想研究

陈三立“蜻庐诗”是由历年省墓述哀诗组成，但它已超越了单纯的悼亡的含义，而具有特殊的“感兴”。组诗主题由父子之情述及理想与现实的矛盾，进而拓展到家父君国、兴亡遗恨的体认，透视出历史与现实的人生大关怀。在“家国旧情、兴亡遗恨”的主题下，情庐诗的悲感更具有普遍的社会意义，彰显了义宁家族精神传统中“国身通一”的思想。     

论汉魏六朝文人俗赋

汉魏六朝文人俗赋冲破了辞赋宫廷化、贵族化的藩篱,将眼光投向社会下层和世俗人生,题材内容丰富,构思巧妙,风格诙谐,在传统文人雅赋之外别立一格,使赋坛上雅俗共存,典丽与通俗兼容,大大丰富了汉魏六朝赋坛的景观。同时,我们又清楚地看到,文人俗赋数量不多,创作队伍不大,发展举步维艰、徘徊不前,在雅文学的夹缝中浮沉挣扎。这种局面实在是汉魏六朝雅文学强势地位的结果,也是文学为贵族所垄断时代之必然。     

Higher than second order approximations for sequential point estimation by a two-stage procedure

We consider the sequential point estimation problem of the mean of a normal distribution N(μ, σ²) when the loss function is squared error plus linear cost. It is shown that a two-stage procedure has the asymptotic efficiency of which the order is higher than second order, provided the standard deviation has a known lower bound. We also give a higher than second-order approximation to the risk.     

On finite-sample properties of adaptive least squares regression estimates

This paper is mainly concerned with deriving finite-sample properties of least squares estimators for the regression function in a nonparametric regression situation under some simplifying assumptions such as normally distributed errors with a common known variance. The selection of basis functions to be used for the construction of an estimator may be regarded as a smoothing problem, and will usually be done in a data-dependent way, A straightforward application of a result by P. J. Kernpthorne yields that, under a squared error loss, all selection procedures are admissible. Furthermore, the minimax approach provides an interpolating estimator, which is often impractical, Therefore, within a certain class of selection procedures an optimal one is determined using the minimax regret principle. It can be seen to behave similarly to the procedure minimizing either an unbiased risk estimator or, equivalently, the C_p-criterion.     

Posterior Regret Γ-Minimax Estimation and Prediction with Applications on k-Records Data Under Entropy Loss Function

Robust Bayesian analysis is connected with the effect of changing a prior within a class Γ instead of being specified exactly. The multiplicity of prior leads to a collection or a range of Bayes actions. It is interesting not only to investigate the range of estimators but also to recommend the optimal procedures. In this article, we deal with posterior regret Γ-minimax (PRGM) estimation and prediction of an unknown parameter θ and a value of a random variable Y under entropy loss function. Applications for k-records such as estimation and prediction problems are discussed.     

论西方悲剧精神心灵忏悔的审美特征

西方悲剧精神的审美本质是反思人类社会历史矛盾，因而其悲剧精神的审美特征之一是浓郁的心灵忏悔。心灵忏悔主要表现为悲剧主人公面对历史长流，尽管有遥远的历史理性主义的美妙理由和光明允诺，总归难以彻底解脱现在耳闻目睹伦理情感受伤害引发的愧疚和痛悔。其次表现为一种特殊方式，即主人公的“人性异化”在读者心灵意识中生发出别样的感受。其三表现为一种绝妙的艺术构思，那就是在此一人物形象的基础上派生出彼一人物形象。     

考虑决策者后悔规避的风险投资项目选择方法

在风险投资项目选择过程中,决策者通常是有限理性的,会尽量避免选择可能会令其感到后悔的风险投资项目,而在涉及多个行业的风险投资项目选择过程中如何考虑决策者后悔规避的心理行为因素,这方面的研究特别需要关注。本文提出了一种涉及多个行业的考虑决策者后悔规避的风险投资项目选择方法。在该方法中,首先计算各风险投资项目在不同市场状态下的项目价值;然后,计算各组合市场状态发生的概率;进一步地,构建后悔函数刻画决策者后悔的心理感知,并通过计算不同行业的各风险投资项目的综合效用值得到风险投资项目的排序结果。最后,通过一个算例说明了本文提出方法的可行性与有效性。     

Adaptive Heuristics

We exhibit a large class of simple rules of behavior, which we call adaptive heuristics, and show that they generate rational behavior in the long run. These adaptive heuristics are based on natural regret measures, and may be viewed as a bridge between rational and behavioral viewpoints. Taken together, the results presented here establish a solid connection between the dynamic approach of adaptive heuristics and the static approach of correlated equilibria.     

基于最小最大后悔值的应急救灾网络构建鲁棒优化模型与算法

应急救灾过程分为两个阶段：第一阶段启动应急救灾网络构建,在灾区附近设立临时应急配送中心,并由应急资源供应方向其紧急调配应急资源;第二阶段将应急资源从临时应急配送中心向灾区受灾点进行调度,以保证救灾过程顺利进行。本文研究第一阶段应急救灾网络的构建问题,考虑到突发灾害初期灾情相关参数概率分布情况难以获取,建立了基于情景的最小最大后悔值准则的应急救灾网络构建鲁棒优化模型。求解模型时,利用有限情景集表示第二阶段的不确定性数据,并将模型化为与其等价的混合整数规划模型,利用情景松弛的迭代算法进行求解。数值试验中给出相应的绝对鲁棒模型与本文偏差鲁棒模型作了比较,结果表明基于最小最大后悔值准则的应急救灾网络优化模型具有良好的鲁棒性,而且算法也是有效的。     

论小说遗憾结局的表现手法及美学追求

本文主要从创作手法方面切入,论述小说遗憾结局的审美效应,这种遗憾的价值和意义不仅表现在作者“怎么写”和“为什么写”上,而且更多地表现在读者接受遗憾的情感反应和理性思考上。为了“写缺致憾”,作者在创作时多采用蓄势、意外、巧合等艺术手法。