CAS理论视角下Web2.0序化研究

CAS理论认为宏观的演化过程可以从个体行为规律中找到根源,本文以此为依据从系统微观层面出发,探讨了Web2.0系统的序化机制。本文以CAS理论为蓝图,构建了Web2.0的理论模型,界定了系统主体及各特征机制,并结合豆瓣实例阐释了主体适应与交互导致有序的机理。     

Web2.0有序性的应用——Lib2.0

本文主要探讨Web2.0的自组织和有序性在图书馆中的应用所形成的Lib2.0。分析了Lib2.0的序性特征、形成机理及可能的应用;对Lib2.0环境下的信息组织和传统图书馆的信息组织方式进行了比较,并提出了优化措施。     

基于Web2.0的信息有序结构及其测度研究

有序结构在Web2.0中有着新的表现形式,它包含了由他组织过程所生成的静态有序结构以及由自组织过程所生成的动态有序结构两种类型,这些结构的表现形式都是由其对应的控制规则所决定的。一种结构的有序程度,是以用户体验的感受程度为标准的。通过对已有的可用的有序性测度方法的比较分析,笔者指出了其各自的适应范围,并阐述了作为有序度测度发展趋势的用户体验测试方法。     

从字顺到分类:北京大学图书馆期刊排架工作实践

长期以来,图书馆界就期刊的排架方式一直存在着刊名字顺与学科分类两种截然不同的观点。2003年起北京大学图书馆将馆藏纸本期刊由原来的刊名字顺排架分期分批地改为按学科分类、兼顾字顺的排架方式。该文主要讨论这次期刊排架的变化,包括两种排架方式的取舍、架号结构的确立、改号的工作流程、辅助措施以及分类排架的效果等。     

高师对师范生教学能力培养的个性追求

高师对师范生教育教学实践能力的培养是能力素养的核心内容。它与知识素养和情意素养共同构成了教师从业需求的三大板块，在高师人才培养中占有十分重要的地位。而培养个性化的能力，既是高师因人施教的具体内容，也是专业知识进行个性化理解和接受中理论与实际统一的要求，还是教师从业中的情境性对实施者能力的规范。因此，对师范生进行个性化实践能力的培养具有特殊意义。     

Co-occurrence of adverse childhood experiences and its association with family characteristics. A latent class analysis with Dutch population data

BackgroundAlthough adverse childhood experiences (ACEs) are relatively common among children, there is limited knowledge on the co-occurrence of such experiences.ObjectiveThe current study therefore investigates co-occurrence of childhood adversity in the Netherlands and whether specific clusters are more common among certain types of families.Participants and SettingRepresentative data from the Family Survey Dutch population 2018 (N = 3,128) are employed.MethodWe estimate Latent Class Analysis (LCA) models to investigate co-occurrence of ACEs. As ACEs we examine maltreatment, household dysfunction, demographic family events, as well as financial and chronic health problems. Gradual measures for maltreatment and financial problems are studied to make it possible to differentiate with regard to the severity of experiences.ResultsOur results show that four ACE clusters may be identified: ‘Low ACE’, ‘Moderate ACE: Household dysfunction’, ‘Moderate ACE: Maltreatment’ and ‘High ACE’. Regression analyses indicated that mother’s age at first childbirth and the number of siblings were related to experiencing childhood adversity. We found limited evidence for ACEs to be related to a family’s socioeconomic position.ConclusionThe found clusters of ACEs reflect severity of childhood adversity, but also the types of adversity a child experienced. For screening and prevention of childhood adversity as well as research on its consequences, it is relevant to acknowledge this co-occurrence of types and severity of adversity.     

Libraries and Spatial Literacy: Toward Next-Generation Education

The role of the library is to assist citizens in skills development critical to national interest and empowerment as literacy ambassadors, in general. Specifically, the work by the Federal Geographic Data Committee (1994) indicates that spatial literacy is for every citizen and not just a set of workforce specialists. Hence, the use of maps in decision making and problem solving will become fundamental to all professions, including library professionals. Thus, a spatial literacy awareness and rationale for such as standard job ability is discussed as a future librarian workforce proficiency and knowledge transfer medium.     

《黄帝内经》“阴阳二十五人”人格理论的优势与不足

《黄帝内经》是中医重要典籍,它将五行与人体形态、体质、人格特征等属性进行联系,提出“五形人”并推演出“阴阳二十五人”学说。“阴阳二十五人”包含了理论驱动式、演绎式的人格理论,不同于西方数据驱动式、归纳式的人格理论,因此具有重要的理论价值。与此同时,该学说也存在一些明显的瑕疵,需要加以完善和修正。     

Using LSA and text segmentation to improve automatic Chinese dialogue text summarization

Automatic Chinese text summarization for dialogue style is a relatively new research area. In this paper, Latent Semantic Analysis （LSA） is first used to extract semantic knowledge from a given document, all question paragraphs are identified, an automatic text segmentation approach analogous to Text＇filing is exploited to improve the precision of correlating question paragraphs and answer paragraphs, and finally some ＂important＂ sentences are extracted from the generic content and the question-answer pairs to generate a complete summary. Experimental results showed that our approach is highly efficient and improves significantly the coherence of the summary while not compromising informativeness.     

改变高维逐次积分次序的新解法

通过对二次积分次序的交换方法的分析，文章给出了改变三次及以上逐次积分次序的一种新方法——降维法来有效地求解重积分问题．