Wyniki 1-1 spośród 1 dla zapytania: authorDesc:"Danuta ZAKRZEWSKA"

Building student models in adaptive E-learning systems

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Adaptivity of an e-learning system is one of the most important feature deciding on its performance. Finding student models enables to adjust e-learning systems according to their needs. In the paper, it is proposed to use frequent pattern mining to find learner characteristics and acc to build student groups of similar needs accordingly. The proposed method is compared with the solution , where frequent patterns are found on clusters. Some experimental results for real and artificially generated data are presented. Streszczenie. Adaptacyjność jest ważną cechą decydującą o skuteczności systemów edukacyjnych. Znalezienie modeli studentów, umożliwia dopasowanie systemów do ich potrzeb. W pracy, zaproponowano użycie częstych wzorców do znalezienia charakterystyk studentów i zbudowania grup o podobnych potrzebach. Zaproponowana metoda jest porównana z rozwiązaniem, w którym wzorce są budowane na klastrach. (Budowanie modeli studentów w adaptacyjnych systemach nauczania na odległość) Keywords: e-learning, student modelling, frequent pattern mining. Słowa kluczowe: nauczanie na odległość, modelowanie studentów, eksploracja częstych wzorców. Introduction Performance of an e-learning system depends on an extent it is adjusted into students’ needs and preferences. Finding groups of learners of similar characteristics and building their models can help in constructing adaptive educational software as well as in adjusting teaching materials and paths into group needs. In the case of big amount of learners, the proposed solution is easier to implement and less costly than personalization according to each learner requirements. In the paper, it is considered application of data mining techniques for finding student groups and their models. We investigate and compare two approaches. In the first one, student groups are created by taking into account frequent patterns of their features. In the second approach, groups are built by using clus[...]

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