Debiaser for Multiple Variables to enhance fairness in classification tasks     

《Information processing & management》2023,60(2):103226

Nowadays assuring that search and recommendation systems are fair and do not apply discrimination among any kind of population has become of paramount importance. This is also highlighted by some of the sustainable development goals proposed by the United Nations. Those systems typically rely on machine learning algorithms that solve the classification task. Although the problem of fairness has been widely addressed in binary classification, unfortunately, the fairness of multi-class classification problem needs to be further investigated lacking well-established solutions. For the aforementioned reasons, in this paper, we present the Debiaser for Multiple Variables (DEMV), an approach able to mitigate unbalanced groups bias (i.e., bias caused by an unequal distribution of instances in the population) in both binary and multi-class classification problems with multiple sensitive variables. The proposed method is compared, under several conditions, with a set of well-established baselines using different categories of classifiers. At first we conduct a specific study to understand which is the best generation strategies and their impact on DEMV’s ability to improve fairness. Then, we evaluate our method on a heterogeneous set of datasets and we show how it overcomes the established algorithms of the literature in the multi-class classification setting and in the binary classification setting when more than two sensitive variables are involved. Finally, based on the conducted experiments, we discuss strengths and weaknesses of our method and of the other baselines.  相似文献   

Skills policy for growth and development: The merits of local approaches in Vietnam     

《International Journal of Educational Development》2021

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Benchmarking oral reading fluency in the early grades in Nguni languages     

《International Journal of Educational Development》2021

To prevent children from falling behind in the developmental sequence of reading, a shared vision of what reading success looks like is required. This paper provides the first benchmarks for early grade oral reading fluency that are necessary (albeit not sufficient) to read for meaning in three Nguni languages – isiZulu, isiXhosa and Siswati - belonging to the Southern Bantu family of African languages. In contrast with previous benchmarking methodologies, our approach is informed by a non-parametric analysis of longitudinal early grade reading assessment (EGRA) data, guided by reading development theory. The EGRA-type data used for this analysis is the largest compilation of data on early grade fluency in these languages, with comparative assessments for nearly 14,200 children. Analysing empirical regularities and reading trajectories, we identify a lower fluency threshold of 20 correct words per minute (cwpm) and an upper fluency benchmark of 35 cwpm for the early grades. These benchmarks contribute to guiding curriculum policy, provide specificity to improve tracking of literacy progress and address gaps in the literature on reading in African languages.  相似文献   

Where do you come from,where do you go? Assessing skills gaps and labour market outcomes for young adults with different immigration backgrounds     

《International Journal of Educational Development》2021

Using PISA and PIAAC data from twelve OECD countries, we examine the gap in cognitive skills among immigrants and natives and evaluate how those differences have evolved over time. We also consider how demographics, family background and school quality explain the development of cognitive skills of young people with immigrant backgrounds. The results show, first, that some convergence in skills occurs between second-generation immigrants and natives over time. Second, demographics, family background and school quality variables all contribute to the achievement gaps across different groups.  相似文献   

大学生思政课自主学习面临的“微”干扰及应对研究     

朱景林 《当代教育理论与实践》2021,13(2):26-31

微时代大学生思政课自主学习享有网络信息带来的便捷,同时也面临网络裹挟的一些干扰。克服这些干扰还存在一些主要障碍,需要在提高学生意识形态的鉴别力、增强自主学习环境的塑造力、提高教师自身网络教育的驾驭力和提升网络学习的保障力等方面下功夫。  相似文献   

日韩武技现代化对我国学校武术的启示     

张长念  张长思 《武汉体育学院学报》2020,54(3):63-69,91

时至今日,武术仍未能很好地进入校园,其原因何在,如何从柔道、跆拳道、空手道的成功现代化和国际化当中寻求启发,成为紧迫论题。主要运用文献资料法,基于对学校武术历史、现状的反思和日韩武技现代化的启示,对我国学校武术的根本问题和根本方略做出探讨。研究认为,学校武术开展的现状不能实现中华民族赋予它的文化使命,日韩武技现代化的经验可为我们提供启示——将传统意义上的搏杀武技改造为一项现代文明搏击项目,该项目需满足几个趋势保证安全文明化、保持技击本质性、具有游戏趣味性、彰显民族独特性。在此基础上,做出武术以太极推手形式进入校园的提案。  相似文献   

Can social integration in schools be mandated: Evidence from the Right to Education Act in India     

《International Journal of Educational Development》2020

Although Affirmative Action policies have been enforced in many countries, their consequences are highly understudied, especially in the context of developing economies. Section 12(1)(c) of the Right to Education (RTE) Act enforced in 2009 is the first attempt to introduce affirmative action in primary schools in India. The act requires all private schools to reserve at least twenty five percent seats for children from economically weaker sections. To understand the effect of the act on i) social integration and ii) academic outcomes, we asked 1500 children (grades one to three) from four schools to answer friendship surveys and short tests in Mathematics and English. The schools in our sample vary considerably in constitution and were intentionally chosen to understand the impact of the act in different school settings. The friendship surveys show strong homophily i.e. non-RTE students cite other non-RTE students as friends, while RTE students chose to be friends primarily with other RTE students. Trends in test scores reveal that students admitted under the RTE quota score significantly lower than non-RTE students. However, RTE students who have a higher share of non-RTE friends have better test scores, suggesting that affirmative action may have a positive influence on learning outcomes for RTE children. Further we note that commitment from the school authorities and systematic monitoring and evaluation of the implementation of the act will go a long way in bringing out some of the benefits that this act was designed to achieve. Our findings have important policy implications with respect to ensuring proper implementation of the Section12(1)(c) of the RTE act in schools across the country.  相似文献   

How teachers’ individual autonomy may hinder students’ academic progress and attainment: Professionalism in practice     

Christopher Day 《British Educational Research Journal》2020,46(1):247-264

This article reports a 3-year case study of a primary school in England, in which a recently appointed principal attempted to build ‘collegial professional autonomy’ (Nordic Journal of Studies in Educational Policy, 2 , 2015, 20) within a push to improve students’ progress and attainment. The research examined the tensions between staff who embraced the principal's agenda for collegially agreed change, and whose students’ academic progress and performance improved over a 3-year consecutive period when measured in terms of students’ entry-level attainment and socio-economic factors, and staff who asserted their right to ‘individual professional autonomy’ and whose students’ academic progress and attainment declined. The research: (i) challenges claims that reform necessarily results in school cultures of compliancy, de-professionalisation and the technicisation of teaching; (ii) raises issues concerning the pedagogical leadership of principals in a devolved, ‘self-governing’ school system; and (iii) questions teachers’ entitlements to individual professional autonomy where this is associated with students’ continuing academic underperformance.  相似文献   

命运共同体的构建:中西方体育文化从区隔到融合     

曾镜儒  向勇 《体育科技文献通报》2020,(2):114-116

在国际化趋势的带动下,人类命运共同体的构建延伸渗透到了各个领域中。体育文化作为中西方存在明显差异的一个部分,如何在新的时代背景下打破原有区隔,树立新的定位和方向,并进一步实现融合是当前发展的关键。为此,文章采用文献资料法等,将围绕命运共同体的构建对中西方体育文化从区隔到融合展开探讨。  相似文献   

侗族传统体育项目哆毽的传承与融变     

黄超男 《体育科技文献通报》2020,(4):9-10

侗族拥有丰富绚丽的民族文化,民族体育活动方面,有"民族体育之乡"的称号,完整保留了许多传统体育项目,一些项目被纳为国家少数民族传统体育比赛项目中。哆毽是侗族特色体育项目之一,通过调查发现哆毽项目开展情况不佳,哆毽文化被忽视,其影响因素是传统体育价值观迷失、侗族文化根基被忽视。提出了有关哆毽融变发展的建议,成立"哆毽节"、开办侗族传统体育训练基地、规范哆毽教学内容、哆毽技术动作编程健身操等措施。  相似文献