An unsupervised heuristic-based approach for bibliographic metadata deduplication

Digital libraries of scientific articles contain collections of digital objects that are usually described by bibliographic metadata records. These records can be acquired from different sources and be represented using several metadata standards. These metadata standards may be heterogeneous in both, content and structure. All of this implies that many records may be duplicated in the repository, thus affecting the quality of services, such as searching and browsing. In this article we present an approach that identifies duplicated bibliographic metadata records in an efficient and effective way. We propose similarity functions especially designed for the digital library domain and experimentally evaluate them. Our results show that the proposed functions improve the quality of metadata deduplication up to 188% compared to four different baselines. We also show that our approach achieves statistical equivalent results when compared to a state-of-the-art method for replica identification based on genetic programming, without the burden and cost of any training process.     

On Rest-from-Deliberate-Learning as a Mechanism for the Spacing Effect: Commentary on Chen et al. (2021)

Educational Psychology Review - In their recent paper, Chen et al. (Educational Psychology Review, 2021) propose that rest periods between deliberate learning characterize the spacing effect and...     

Expelled from Childcare: Suspension and Expulsion Practices in One State’s Community Childcare Centers

Early Childhood Education Journal - Suspension and expulsion, typically thought of as discipline practices for high school students, occur at the early childhood level. In fact, 3- and 4-year old...     

Students' perceptions of fairness in peer assessment: evidence from a problem-based learning course

This paper describes the experience of peer assessment in a problem-based learning course in a Portuguese university, and presents the results of a survey of 120 students who attended the course over seven semesters. Cluster analysis revealed that students group into two distinct clusters with significantly different experiences of peer assessment. Although the larger cluster (70%) expressed a positive experience, the other group perceived peer assessment results and final marks to be unfair, and reported incidents of friendship-marking and conflict arising from peer assessment. Results show that perceptions of fairness (both regarding peer assessment and final marks) are very much associated with those problems. We reflect on these findings to explore implications for practice as well as future research.     

Editorial: preface to the special issue on embodied cognition and technology for learning

Educational technology research and development - In this preface to the special issue on embodied cognition and technology for learning, we begin with a brief overview of embodied cognition. We...     

Exploring the relationship between institutional and professional autonomy: a comparative study between Portugal and Finland

By comparing two distinct settings–Portugal and Finland–and based on previous studies revealing similar trends in both countries, this article analyses the relationship between institutional and academic autonomy in the higher education sector. Based on crosschecking of the literature review and 47 interviews with key actors in both the Portuguese and Finnish higher education systems, the authors analyse the extent to which the political attempts to increase institutional autonomy are perceived by academics in these countries as leading to an increase in their professional autonomy. Data reveals that there is a lack of complete correspondence between the way different institutional dimensions have been changing at the organisational level and the way academics perceive the effects at the professional level. While there is a correspondence in the perceptions over organisational and interventional autonomy, no correspondence is found concerning policy autonomy in both countries. Furthermore, there are no homogeneous perceptions within academics group in each country concerning professional autonomy.     

“We’re not just sat at home in our pyjamas!”: a thematic analysis of the social lives of home educated adolescents in the UK

A common perception of home education is that despite potential beneficial educational outcomes, children who are home educated lack social experiences and therefore show poor social development. However, previous research in this area suggests that home educated children demonstrate a range of age-appropriate social skills. This research has mainly focused on children younger than 12; thus, we have much less of an understanding of the social impacts of home education on adolescents. Furthermore, previous research has often used social skills questionnaires and has not explored the experiences of home educating families from their own perspectives. The current study addresses these gaps in the literature by interviewing three home educated adolescents and their mothers about their social experiences and development with the research question of ‘how do home educated adolescents and their parents experience and understand socialisation?’. In one-to-one interviews, young people (aged 11–14) were asked about their experiences and perceptions of their social lives. In a separate interview, mothers were asked about how they facilitated these social experiences and their perceptions of the impact this had on their child’s development. Data from the interviews was thematically analysed. Results suggested that adolescents participated in a range of social experiences that promoted their social skills, happiness and confidence. Participants felt that this created a positive social environment and sense of community, and encouraged the adolescents to interact with a diverse range of people. However, further research is needed to explore whether this finding is generalisable to the broader community of home educated adolescents.