Objectivity as standardization in data-scientific education policy,technology and governance

ABSTRACT

New data-driven technologies appear to promise a new era of accuracy and objectivity in scientifically-informed educational policy and governance. The data-scientific objectivity sought by education policy, however, is the result of practices of standardization and quantification deployed to settle controversies about the definition and measurement of human qualities by rendering them as categories and numbers. Focusing on the emerging policy agenda of ‘social and emotional learning and skills,’ this paper examines the practices of ‘objectivity-making’ underpinning this new field. Objectivity-making depends on three translations of (1) scientific expertise into standardized and enumerable definitions, (2) standardization into measurement technologies, and (3) the data produced through measurement technologies into objective policy-relevant knowledge, which consolidates a market in SEL technologies. The paper sheds light on knowledge-making practices in the era of big data and policy science, and their enduring reliance on the precarious construction of objectivity as a key legitimator of policy-relevant scientific knowledge and ‘evidence-based’ education governance.     

基于构造-剪枝混合优化RBF网络的煤灰熔点预测方法

为提高煤灰熔点的预测精度,提出了一种基于构造-剪枝混合优化RBF网络的煤灰熔点预测方法.该方法融合了神经网络构造算法和剪枝算法的优点,分为“粗调”和“精调”2个阶段.粗调阶段动态增加隐节点数目直至满足相应的停止准则;精调阶段对粗调得到的RBF网络的结构和参数作进一步调整.基于煤灰的化学组成成分建立相应的构造-剪枝混合优...     

北方游牧民族文化与中原汉文化的交汇融合

民族文化交融，是历史的必然，中华各民族的文化交融由来已久，当然，北方游牧民族与中原的文化交融亦在同步进行。而最广泛的交融体现在广大人民的生产劳动、衣食住行及巫术、宗教和民俗活动诸方面。     

基于(G)模糊积分的信息融合方法

采用单一模糊积分进行信息融合的结果有时可能明显失真。例如,(S)模糊积分融合时只考虑了单分类器的识别结果与相应分类器集重要程度中较小的那个量的信息,有时可能会产生错误的分类结果。为了弥补(S)模糊积分等模糊积分的局限性,提出基于(G)模糊积分的信息融合方法,将多个模糊积分的融合结果加权平均作为分类的依据,可以对各单一模糊积分融合效果取长补短,有助于提高多分类器融合系统的识别率和稳健性。     

基于视频的数据挖掘系统的研究

研究了一种视频数据挖掘的系统结构.介绍了该系统中各主要模块的功能;描述了视频数据预处理和视频数据立方体;讨论了视频数据挖掘方法并探讨了典型的视频挖掘技术.     

天津民俗文化刍议

天津民俗文化可分为上、中、下三个干流,分别为统治阶级、市民阶层和下层劳动者创造和享用的文化。天津民俗文化发轫于建城以前,兴盛于开埠前后,成熟于近代百年。影响天津民俗文化的形成因素有三个方面。一是自然生态。河、海交会是天津民俗文化形成的最大环境优势。二是经济发展。漕运、芦盐带动天津商业,市民阶层的逐渐壮大,使代表市民价值观念和具有浓重市民文化色彩的城市民俗进一步发展。三是社会环境。作为军事卫所,天津具有浓重的军旅气息,造就天津"俗尚武健"的市民性格。所谓"无论贫富,见义必为,饶有古遗风"。天津民俗文化长期处于一种碰撞、调试、吸纳、融合的运动状态,突出一个"杂"字。许多外地民俗文化一旦移植到天津,很快会被吸纳,形成具有天津特色的文化现象。近代天津开埠,为西方文化与中国传统文化在天津都市中的碰撞和融合创造了条件。挖掘天津民俗文化,不仅描述出天津丰富的民俗盛景,而且力图使它产生现代效应,为天津的精神文明建设服务。     

Metaphors we’re colonised by? The case of data-driven educational technologies in Brazil

ABSTRACT

This article discusses issues concerning the spread of data-driven educational technologies in Brazil. Here, as elsewhere, educational technology continues to be promoted optimistically as the bearer of a panacea for historically-rooted social problems. Whilst some of these technologies have indeed contributed to important widening-participation programmes in the last two decades, widespread advocacy of technological ‘solutionism’, reflected in gradually stronger policy demands for efficiencies to be improved through ‘innovation’, has supported a relentless marketisation of the country’s educational systems. As transnational corporations position themselves to take control of key areas of these systems, threatening to restructure the whole sector, data-driven educational technologies provide the latest example in a series of ‘new’ ideas offered in an ever-expanding market. Based on the notion of ‘conceptual metaphors’, which encapsulate specific ways of perceiving, thinking and relating with the world, this article examines key metaphors underpinning discourses surrounding data-driven educational technologies in Brazil. In particular, the article analyses ways in which these specific metaphors may be promoting perspectives that ignore difference and obscure broader questions concerning education, thus contributing to the reproduction of previously existing problems and supporting new forms of colonisation.     

企业新计量信息流转模型和新自动计量模型设计与实施的应用研究

文章讨论了基于信息化数据通讯流转原理和现场自动控制理论,研究了冶金制造企业大宗原燃料、成品、半成品和产品新计量信息流转模型和新自动计量模型设计与实施的现代信息流转和自动称量达到自动、稳定、正确、可靠、合理、可追溯的问题,通过在本钢集团公司ERP、EMS系统配套运行和现场轧钢线计量称重实施等线上操作的手段来实现应用研究。解决了企业新计量信息流转模型和新自动计量模型设计与实施的问题,达到了计量信息系统的提出"数出一门,量出一家"和"网络化自动运行"要求,为冶金制造行业解决此类问题提供了新的思路和方法,具有极大的推广和应用价值。     

内部会计控制的若干问题

内部会计控制制度是企事业单位加强内部会计监督的一项基础管理措施，目前在部分企事业单位中由于制度建设不健全，内部控制管理松懈，会计监督失控，出现了一些经济犯罪和腐败现象，为此，笔者就内部会计控制的若干问题进行探讨，提出相应的对策。     

高中物理教学中学生核心素养培养策略探研

在高中物理教学中,教师要不断探索培养学生物理核心素养的策略与方法。教师可以从物理观念与应用、科学思维与创新、科学探究与交流、科学态度与责任四个方面入手,寻求培养学生物理核心素养的有效策略。