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431.
洪命熹在朝鲜现代文学史上占有举足轻重的地位,他和崔南善、李光洙被称为"朝鲜三天才"。他不仅作为一名作家,更是作为一名民族解放运动家而名满天下。他的创作大力推进了朝鲜文学从近代到现代的过渡。洪命熹仅有的作品《林巨正》是一部百科全书似的大河历史小说,被誉为"奇书"。主人公林巨正在小说中先后与六名女性建立关系,背后隐藏着丰富的文化意蕴,两性关系属社会敏感的神经,研究它能够以斑见豹,达到解读林巨正形象的复杂多面及科学解析小说的最终目的。 相似文献
432.
《统计学通讯:理论与方法》2013,42(11):2235-2257
Statistics as data is ancient, but as a discipline of study and research it has a short history. Courses leading to degrees in statistics have been introduced in universities some sixty to seventy years ago. They were not considered to constitute a basic discipline with a subject matter of its own. However, during the last seventy five years, it has developed as a powerful blend of science, technology and art for solving problems in all areas of human endeavor. Now-a-days statistics is used in scientific research, economic development through optimum use of resources, increasing industrial productivity, medical diagnosis, legal practice, disputed authorship, and optimum decision making at individual and institutional levels. What is the future of statistics in the coming millennium dominated by information technology encompassing the whole of communications, interaction with intelligent systems, massive data bases, and complex information processing networks? The current statistical methodology based on probabilistic models applied on small data sets appears to be inadequate to meet the needs of the society in terms of quick processing of data and making the information available for practical purposes. Adhoc methods are being put forward under the title Data Mining by computer scientists and engineers to meet the needs of customers. The paper reviews the current state of the art in statistics and discusses possible future developments considering the availability of large data sets, enormous computing power and efficient optimization techniques using genetic algorithms and neural networks. 相似文献
433.
Eranda Çela Bettina Klinz Christophe Meyer 《Journal of Combinatorial Optimization》2006,12(3):187-215
In this paper we consider the constant rank unconstrained quadratic 0-1 optimization problem, CR-QP01 for short. This problem consists in minimizing the quadratic function 〈x, Ax〉 + 〈c, x〉 over the set {0,1}
n
where c is a vector in ℝ
n
and A is a symmetric real n × n matrix of constant rank r.
We first present a pseudo-polynomial algorithm for solving the problem CR-QP01, which is known to be NP-hard already for r = 1. We then derive two new classes of special cases of the CR-QP01 which can be solved in polynomial time. These classes result from further restrictions on the matrix A. Finally we compare our algorithm with the algorithm of Allemand et al. (2001) for the CR-QP01 with negative semidefinite A and extend the range of applicability of the latter algorithm. It turns out that neither of the two algorithms dominates
the other with respect to the class of instances which can be solved in polynomial time. 相似文献
434.
R&D联盟条件下基于FMGTS评价的R&D项目合作成员选择 总被引:1,自引:0,他引:1
针对如何从多个候选R&D联盟成员中选择最理想的R&D项目合作成员问题,提出了一种操作性较强的选择方法。首先通过静态博弈得到了候选R&D联盟成员进行某R&D项目合作时竞标价格的可行区间,在考虑专家采用模糊多粒度语言(fuzzy multi-granularity term sets,FMGTS)进行期望获利度评价的状况下,运用基本语言转换函数将评价信息进行集结,据此确定候选R&D联盟成员的期望获利度和优化的竞标价格。在给出价格满意度与工期满意度公式的基础上,利用效用值法将基于不同满意度下的排名决策信息进行一致化处理,最后采用互补判断矩阵中的排序公式来选择理想的R&D项目合作成员。 相似文献
435.
证据理论是处理不确定性问题的有力工具,它处理的证据来源于专家.专家的知识经验是有限的,获取较困难,且可能存在一定的主观性.针对上述问题,提出了一种基于粗糙集理论的证据获取的新方法,并对证据合成和应用进行了研究.首先研究了大型决策表分解问题.利用粗糙集理论分析条件属性间的依赖关系,对条件属性集进行聚类,形成多个条件属性集相对独立的子决策表;其次对各子决策表进行分析,利用粗糙集的分类思想和隶属度概念,计算证据的基本可信度分配;最后文章对证据的合成及其在决策分析中的应用进行了研究,提出了相应的解决方法. 相似文献
436.
粗集的动态特性分析及应用 总被引:5,自引:0,他引:5
本文对粗集的动态特性进行了研究,为了比较确切的描述粗集的动态变化程度,本文引入了粗集的结构差离度、贴近度及复杂度等概念,给出了结构差离度和贴近度的性质,最后给出应用背景和实例。 相似文献
437.
周尚万 《江汉大学学报(人文科学版)》1998,(3)
讨论了RLC串联谐振的条件和特征.对串联谐振时,电感和电容上的电压出现极大值的条件进行了分析.由理论和实验可以证明:当电路品质因数Q值不大时,RLC串联电路谐振时电感和电容上的电压不是极大值,只有在Q值较大时,才可把串联谐振称为电压谐振. 相似文献
438.
D. De Angelis W. R. Gilks & N. E. Day 《Journal of the Royal Statistical Society. Series C, Applied statistics》1998,47(4):449-498
Short-term projections of the acquired immune deficiency syndrome (AIDS) epidemic in England and Wales have been regularly updated since the publication of the Cox report in 1988. The key approach for those updates has been the back-calculation method, which has been informally adapted to acknowledge various sources of uncertainty as well as to incorporate increasingly available information on the spread of the human immunodeficiency virus (HIV) in the population. We propose a Bayesian formulation of the back-calculation method which allows a formal treatment of uncertainty and the inclusion of extra information, within a single coherent composite model. Estimation of the variably dimensioned model is carried out by using reversible-jump Markov chain Monte Carlo methods. Application of the model to data for homosexual and bisexual males in England and Wales is presented, and the role of the various sources of information and model assumptions is appraised. Our results show a massive peak in HIV infections around 1983 and suggest that the incidence of AIDS has now reached a plateau, although there is still substantial uncertainty about the future. 相似文献
439.
本文在介绍项目教学法和"数据库应用基础"课程特点的基础上,阐述了项目教学法应用于该课程教学的整体实施思路:按照教学目标精选项目;按照项目重组教学内容;转换教师、学生角色;按项目实施流程组织整个教学过程;实施平时实验、期末参考和课程设计相结合的考核方式。 相似文献
440.
《Journal of intergenerational relationships》2013,11(3-4):147-170
ABSTRACT Culturally enshrined ideas about generational relations affect language, the use of language, and linguistic conventions for expressing these ideas. Generation terms (or age-set terms) distinguish people in the social group according to their age and sex. The age set is a formally organized group of youths, or men or women which has collectively passed through a series of stages each of which has distinctive status, ceremonial, military or other activities. Membership of the group frequently involves ritual in initiation, accompanied by special teaching of the community's law and customs, instructions in sexual matters, and, in some societies, physical initiation that is the mark of attainment of maturity. But how is the system of intergenerational relationship manifested in a particular social group? How do the members of each generation use language differently? How does language treat the generations differently? How do such differences affect our perceptions, attitudes and behavior in everyday life? How do language and behavior reflect unity of the generation groups and their relationship to each other? In this paper we are going to examine the social, cultural, and linguistic characteristics that focus on features common to members of a particular generation and account for its relationship to other generations. We will do this by looking at the Tumbuka of northern Malawi, and examining their social organization and the system of terms and social behavior that is employed in addressing and referring to members of a particular generation. The learning of generation-type language by children and cross-cultural aspects of these questions will be considered. 相似文献