Using logic model and visualization to conduct portfolio evaluation

Portfolio evaluation is the evaluation of multiple projects with a common purpose. While logic models have been used in many ways to support evaluation, and data visualization has been used widely to present and communicate evaluation findings, adopting logic models for portfolio evaluation and using data visualization to share findings simultaneously is surprisingly limited in the literature. With the data from a sample portfolio of 209 projects which aims to improve the system of early care and education (ECE), this study illustrated how to use logic model and data visualization techniques to conduct a portfolio evaluation by answering two evaluation questions: “To what extent are the elements of a logic model (strategies, sub-strategies, activities, outcomes, and impacts) reflected in the sample portfolio?” and “Which dominant paths through the logic model were illuminated by the data visualization technique?” For the first question, the visualization technique illuminated several dominant strategies, sub-strategies, activities, and outcomes. For the second question, our visualization techniques made it convenient to identify critical paths through the logic model. Implications for both program evaluation and program planning were discussed.     

额外资源按需分配方法研究

文献Wei Quanling等^[1]的最后一段提出了这样一类额外资源分配问题：假设有一些额外的投入资源将要分配给全部或者部分决策单元,如果我们希望分配结果对于整个系统（该系统由全部决策单元组成）来说是最有益的,那么应当如何分配这些额外的投入资源?他们同时还指出系统中哪些决策单元能够获得额外的投入资源,这不仅取决于决策单元的效率,还需要考虑规模报酬。针对此类问题,本文提出一种额外资源按需分配方法：首先,综合决策单元的技术效率与其投影点的规模弹性构建发展曲线,并由决策单元的发展曲线获知其投入变动与产出变动的对应关系;然后,把额外资源分成若干等份,依次分配每一个等份的额外资源,每次分配使系统的总产出增加实现最大,直至分配完全部的额外资源,或者分配某一份额外资源不再带来任何的产出增加,分配就会停止;最后,把决策单元在每一次分配过程中获得的额外资源进行累加,得到这个决策单元最终的分配结果。全文的最后分别在"一个投入一个产出"和"两个投入一个产出"情况下给出两个具体的分配算例。分配结果表明,这种按需分配方法不会缩减任意一个决策单元当前占有的投入资源数量,并且还可以有效地在辨识出某种额外资源在规模上和结构上存在的冗余,从而有效地避免不必要的分配。     

网络犯罪对刑事侦查的挑战与应对

网络犯罪不仅包括以网络为对象的犯罪,也包括以网络为工具的犯罪。由于网络犯罪具有犯罪主体、手段的专业化、犯罪客体的多样化、犯罪行为的隐蔽化的特点,导致犯罪行为扩散迅速、身份易藏、证据有限、毁证容易、适用法律困难等问题,对刑事侦查带来了极大的挑战。这种挑战主要体现在管辖权、证据制度和侦查措施三个方面。我国应对网络犯罪的侦查制度较为落后,应当从专门侦查机构、管辖制度、电子数据收集制度和技术侦查措施四个方面来加以完善。     

伍尔夫意识流小说《达罗卫夫人》中的语法变异

意识流小说家善于把内心世界的混乱无序、朦胧的潜意识活动直接显示出来,揭示其内在的真实。这种创作不可避免地破坏了叙述的逻辑性,使语言支离破碎,破坏语言规则,导致了语言的变异,成了意识流小说主要的语言特征。意识流小说的语言在语体风格上独树一帜,在文学创作领域中占有着重要地位。本文以美国著名作家弗吉尼亚.伍尔夫的著作《达罗卫夫人》为线索,剖析了意识流小说的语言风格中语法变异。     

基于Windows2000远程教育平台的开发和建设

近年来,随着计算机网络技术的飞速发展,国内外都在大力开发和推广基于internet的远程教育技术,这种教育系统以多媒体应用程序为基础,通过计算机网络将教师的图像,声音,作业传送给学生,通过实时或非实时来实现。本文介绍怎样利用Windows2000中的多媒体应用程序来搭建适合于远程教育的应用平台。     

大数据环境下商业信息服务模式创新研究

在现代商业活动中,由于供需双方之间的信息不对称,使得大量潜在交易无法实施,降低了市场运行的效率。本文指出了消除信息不对称的关键,并基于大数据技术发展动态,提出了一种创新的商业信息服务模式,深入分析了其中所包括的主体及其主要作用,并给出了相应的运行机制。     

统计学专业本科生开设“数据挖掘”课程的探讨

"数据挖掘"是一门分析海量数据库的交叉学科,统计学专业开设这门课程十分必要。鉴于数据挖掘内容的复杂多样,本文提出应根据统计学专业本科生的特点制订合理的教学大纲、教学内容和教学方法,以提高学生的学习效率和学习热情。     

《离骚》与意识流

提到"意识流",人们总是把它与小说创作联系在一起.其实"意识流"与诗歌有着更密切的渊源关系.我国最早最长的抒情诗<离骚>就是一部典型的意识流诗歌.<离骚>中的意识流手法表现为意识过程的全知叙述或者内心独白;意识流的婉转起伏和瞬息万变;波澜壮阔的心理激流展示了诗人丰富复杂的心路历程.潜入到<离骚>意识流世界的深层,我们会发现另一番神奇瑰丽的艺术世界.     

Public relations and artificial intelligence: It’s not (just) about robots

Organizations of all kinds, as well as their in-house or agency public relations teams, increasingly co-opt Artificial Intelligence (AI) to enhance their capabilities. This paper examines a relatively new topic that has received little scholarly attention: the growing relationship between AI and public relations. It outlines several key roles that AI may play in future, based on trends in other industries, and considers the implications for public relations practitioners, their clients and employers. It therefore launches a dialogue about the diversity and extent of AI’s uses in public relations practice. The paper argues that, to date, commentators have placed too much emphasis on AI’s potential for task automation; AI’s broader technological, economic and societal implications for public relations warrant greater critical attention. This does not imply that practitioners need become expert technologists; rather, they should develop a sufficient understanding of AI’s present and potential uses to be able to offer informed counsel.     

Integrated methodology for multiple systems estimation and record linkage using a missing data formulation

There are now three essentially separate literatures on the topics of multiple systems estimation, record linkage, and missing data. But in practice the three are intimately intertwined. For example, record linkage involving multiple data sources for human populations is often carried out with the expressed goal of developing a merged database for multiple system estimation (MSE). Similarly, one way to view both the record linkage and MSE problems is as ones involving the estimation of missing data. This presentation highlights the technical nature of these interrelationships and provides a preliminary effort at their integration.