31 research outputs found
Rugalmas tanulás, rugalmas munkavégzés. Az ontológia alapú tartalommenedzsment lehetőségeinek kiaknázása = Flexible learning, flexible working. Exploiting the potentials of ontology based content management
A humánerőforrás-menedzsment (HRM) és az információs technológia (IT) által támogatott
oktatás és képzés még soha nem állt egymáshoz olyan közel, mint napjainkban. Egy ideje a
tudósok mindkét területen felfedezték azok kölcsönös függőségét. Egyre több publikáció
foglalkozik a lehetséges kölcsönhatásokkal és az együttműködés lehetőségeivel. Ez sok izgalmas
új kérdéshez és modellek, illetve elméletek kereséséhez vezetett, amelyek minden területre
érvényesek, és szilárd alapot alkotnak a kutatók közötti együttműködéshez.
Továbbá, tekintve e multidiszciplináris téma alapvető mivoltát és hatáskörét, egy ilyen célkitűzés
társadalmi (élethosszig tartó tanulás) és ipari relevanciája (praktikus, használható modellek és
rendszerek a mindennapi üzleti folyamatokban) lényeges, eredményei pedig alkalmasint kihatnak
a társadalomra és a versenyszférára. A HR- és tudásmenedzsment (KM) által támogatott tanulási
rendszerek élvonalában működve jó esélyünk van a nagyfokú nemzetközi érdeklődés felkeltésére,
miközben a tudománynak is használunk azzal, hogy elĹ‘remozdĂtjuk ezt a köztes terĂĽletet egy
olyan Európában, ahol a strukturális munkanélküliség komoly kockázatként következik a
pénzügyi világválságból. Ahogy majd az alábbiakból kiderül, ez a kutatás erre a problémára is
megoldást keres. Ezen együttműködés eredményeként kidolgozásra kerülnek egy mobilizált
oktatási környezetbe helyezett innovatĂv munkahely-vĂ©gzettsĂ©g megfeleltetĹ‘ rendszer elmĂ©leti Ă©s
tapasztalati alapjai. A tervezett rendszer használatával a hallgatók és/vagy munkavállalók a szóba
jövő munkaterületek kritériumai szerint értékelhetnék szakmai tudásukat, és részletes információt
kapnának tudásuk hĂ©zagjairĂłl. Ez segĂtene nekik tanulási cĂ©ljaik meghatározásában, hogy megvagy
visszaszerezzenek egy-egy állást
Labour Market Information Driven, Personalized, OER Recommendation System for Lifelong Learners
In this paper, we suggest a novel method to aid lifelong learners to access
relevant OER based learning content to master skills demanded on the labour
market. Our software prototype 1) applies Text Classification and Text Mining
methods on vacancy announcements to decompose jobs into meaningful skills
components, which lifelong learners should target; and 2) creates a hybrid OER
Recommender System to suggest personalized learning content for learners to
progress towards their skill targets. For the first evaluation of this
prototype we focused on two job areas: Data Scientist, and Mechanical Engineer.
We applied our skill extractor approach and provided OER recommendations for
learners targeting these jobs. We conducted in-depth, semi-structured
interviews with 12 subject matter experts to learn how our prototype performs
in terms of its objectives, logic, and contribution to learning. More than 150
recommendations were generated, and 76.9% of these recommendations were treated
as useful by the interviewees. Interviews revealed that a personalized OER
recommender system, based on skills demanded by labour market, has the
potential to improve the learning experience of lifelong learners.Comment: This paper has been accepted to be published in the proceedings of
CSEDU 2020 by SciTePres
XEL Group Learning – A Socio-technical Framework for Self-regulated Learning
We describe XEL-Group Learning, a socio-technical framework for socially oriented e-learning. The aim of the presented framework is to address the lack of holistic pedagogical solutions that take into account motivational theories, socio–technical factors, and cultural elements in social learning networks. The presented framework provides initiatives for collaboration by providing a dynamic psycho-pedagogical recommendation mechanism with validation properties. In this paper, we begin by highlighting the socio-technical concept associated with socially-oriented e-learning. Next, we describe XEL-GL’s main mechanisms such as group formation and the semantic matching framework. Moreover, through semantic similarity measurements, we show how cultural elements, such as the learning subject, can enhance the quality of recommendations by allowing for more accurate predictions of friends networks
Latent Class Cluster Analysis: Selecting the number of clusters
Latent Class Cluster Analysis (LCCA) is an advanced model-based clustering method, which is increasingly used in social, psychological, and educational research. Selecting the number of clusters in LCCA is a challenging task involving inevitable subjectivity of analytical choices. Researchers often rely excessively on fit indices, as model fit is the main selection criterion in model-based clustering; it was shown, however, that a wider spectrum of criteria needs to be taken into account. In this paper, we suggest an extended analytical strategy for selecting the number of clusters in LCCA based on model fit, cluster separation, and stability of partitions. The suggested procedure is illustrated on simulated data and a real world dataset from the International Computer and Information Literacy Study (ICILS) 2018. For the latter, we provide an example of end-to-end LCCA including data preprocessing. The researcher can use our R script to conduct LCCA in a few easily reproducible steps, or implement the strategy with any other software suitable for clustering. We show that the extended strategy, in comparison to fit indices-based strategy, facilitates the selection of more stable and well-separated clusters in the data. • The suggested strategy aids researchers to select the number of clusters in LCCA • It is based on model fit, cluster separation, and stability of partitions • The strategy is useful for finding separable generalizable clusters in the data
Combining statistical and machine learning methods to explore German students’ attitudes towards ICT in PISA
In our age of big data and growing computational power, versatility in data analysis is important. This study presents a flexible way to combine statistics and machine learning for data analysis of a large-scale educational survey. The authors used statistical and machine learning methods to explore German students’ attitudes towards information and communication technology (ICT) in relation to mathematical and scientific literacy measured by the Programme for International Student Assessment (PISA) in 2015 and 2018. Implementations of the random forest (RF) algorithm were applied to impute missing data and to predict students’ proficiency levels in mathematics and science. Hierarchical linear models (HLM) were built to explore relationships between attitudes towards ICT and mathematical and scientific literacy with the focus on the nested structure of the data. ICT autonomy was an important variable in RF models, and associations between this attitude and literacy scores in HLM were significant and positive, while for other ICT attitudes the associations were negative (ICT in social interaction) or non-significant (ICT competence and ICT interest). The need for further research on ICT autonomy is discussed, and benefits of combining statistical and machine learning approaches are outlined
A multi-method psychometric assessment of the affinity for technology interaction (ATI) scale
In order to develop valid and reliable instruments, psychometric validation should be conducted as an iterative process that “requires a multi-method assessment” (Schimmack, 2019, p. 4). In this study, a multi-method psychometric approach was applied to a recently developed and validated scale, the Affinity for Technology Interaction (ATI) scale (Franke, Attig, & Wessel, 2018). The dataset (N ​= ​240) shared by the authors of the scale (Franke et al., 2018) was used. Construct validity of the ATI was explored by means of hierarchical clustering on variables, and its psychometric properties were analysed in accordance with an extended psychometric protocol (Dima, 2018) by methods of Classical Test Theory (CTT) and Item Response Theory (IRT). The results showed that the ATI is a unidimensional scale (homogeneity H ​= ​0.55) with excellent reliability (ω ​= ​0.90 [0.88-0.92]) and construct validity. Suggestions for further improvement of the ATI scale and the psychometric protocol were made
Metadata analysis of open educational resources
Open Educational Resources (OERs) are openly licensed educational materials that are widely used for learning. Nowadays, many online learning repositories provide millions of OERs. Therefore, it is exceedingly difficult for learners to find the most appropriate OER among these resources. Subsequently, the precise OER metadata is critical for providing high-quality services such as search and recommendation. Moreover, metadata facilitates the process of automatic OER quality control as the continuously increasing number of OERs makes manual quality control extremely difficult. This work uses the metadata of 8,887 OERs to perform an exploratory data analysis on OER metadata. Accordingly, this work proposes metadata-based scoring and prediction models to anticipate the quality of OERs. Based on the results, our analysis demonstrated that OER metadata and OER content qualities are closely related, as we could detect high-quality OERs with an accuracy of 94.6%. Our model was also evaluated on 884 educational videos from Youtube to show its applicability on other educational repositories
Quality Prediction of Open Educational Resources A Metadata-based Approach
In the recent decade, online learning environments have accumulated millions of Open Educational Resources (OERs). However, for learners, finding relevant and high quality OERs is a complicated and time-consuming activity. Furthermore, metadata play a key role in offering high quality services such as recommendation and search. Metadata can also be used for automatic OER quality control as, in the light of the continuously increasing number of OERs, manual quality control is getting more and more difficult. In this work, we collected the metadata of 8,887 OERs to perform an exploratory data analysis to observe the effect of quality control on metadata quality. Subsequently, we propose an OER metadata scoring model, and build a metadata-based prediction model to anticipate the quality of OERs. Based on our data and model, we were able to detect high-quality OERs with the F1 score of 94.6%. © 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
OER Recommendations to Support Career Development
This Work in Progress Research paper departs from the recent, turbulent
changes in global societies, forcing many citizens to re-skill themselves to
(re)gain employment. Learners therefore need to be equipped with skills to be
autonomous and strategic about their own skill development. Subsequently,
high-quality, on-line, personalized educational content and services are also
essential to serve this high demand for learning content. Open Educational
Resources (OERs) have high potential to contribute to the mitigation of these
problems, as they are available in a wide range of learning and occupational
contexts globally. However, their applicability has been limited, due to low
metadata quality and complex quality control. These issues resulted in a lack
of personalised OER functions, like recommendation and search. Therefore, we
suggest a novel, personalised OER recommendation method to match skill
development targets with open learning content. This is done by: 1) using an
OER quality prediction model based on metadata, OER properties, and content; 2)
supporting learners to set individual skill targets based on actual labour
market information, and 3) building a personalized OER recommender to help
learners to master their skill targets. Accordingly, we built a prototype
focusing on Data Science related jobs, and evaluated this prototype with 23
data scientists in different expertise levels. Pilot participants used our
prototype for at least 30 minutes and commented on each of the recommended
OERs. As a result, more than 400 recommendations were generated and 80.9% of
the recommendations were reported as useful.Comment: This paper has been accepted to be published in the proceedings of
IEEE Frontiers In Education (FIE) 2020 by IEEE Xplor