POPELÍNSKÝ, Lubomír, Mária BRIATKOVÁ and Zdeněk KEDAJ. DZEMUj: A Tool for Mining in e-Learning Tests. Description and Experience. In Proceedings of the 7th European Conference on eLearning ECEL. Reading, England: Academic Conferences Limited, 2008, p. 299-303, 4 pp. ISBN 978-1-906638-23-8.
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Basic information
Original name DZEMUj: A Tool for Mining in e-Learning Tests. Description and Experience
Name in Czech DŽEMUj, nástroj pro dolování v elearningocých testech. Popis a zkušenosti
Authors POPELÍNSKÝ, Lubomír (203 Czech Republic, guarantor), Mária BRIATKOVÁ (703 Slovakia) and Zdeněk KEDAJ (203 Czech Republic).
Edition Reading, England, Proceedings of the 7th European Conference on eLearning ECEL, p. 299-303, 4 pp. 2008.
Publisher Academic Conferences Limited
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10201 Computer sciences, information science, bioinformatics
Country of publisher Cyprus
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14330/08:00035057
Organization unit Faculty of Informatics
ISBN 978-1-906638-23-8
UT WoS 000263194100037
Keywords in English data mining; e-learning; classification; visualization
Tags CLASSIFICATION, data mining, e-learning, visualization
Tags International impact, Reviewed
Changed by Changed by: doc. RNDr. Lubomír Popelínský, Ph.D., učo 1945. Changed: 17/2/2009 00:06.
Abstract
We introduce DZEMUj, a system for mining in e-learning data, namely in electronic tests and DIA, DZEMUj Intelligent Assistant. DZEMUj farther extends capabilities of the elearning module of the Information system of Masaryk University and offers a set of tools for data analysis. DZEMUj enables to find the most difficult and/or the easiest test queries, to discover associations between answers and also between behaviour of students. We shortly describe data preparation, namely data transformation and data pre-processing. Then we focus on knowledge discovery and knowledge visualization - a scatter plot, RadViz and frequent patterns. DZEMUj has been testing on data from the e-learning module of Information System of Masaryk University since January 2008. DZEMUj is quite efficient. For 507 students, 80 different questions, 10 questions in a student test, the analysis finished in less then 1 minute. DZEMUj is implemented in python, java and R. We conclude this part with evaluation of DZEMUj. Then DIA, an intelligent assistant for DZEMUj is described.
Abstract (in Czech)
Představujeme stručně DŽEMUj, nástroj pro dolování z elearningocých testů v IS MU. Popisujeme zkušenosti s tímto ástrojem a nábvrh nové verze tohoto systému.
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