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@inproceedings{1784377, author = {Čechák, Jaroslav and Pelánek, Radek}, address = {Neuveden}, booktitle = {Proceedings of the 14th International Conference on Educational Data Mining}, editor = {I-Han Hsiao, Shaghayegh Sahebi, François Bouchet, Jill-Jênn Vie}, keywords = {item similarity; evaluation; generalizability}, howpublished = {elektronická verze "online"}, language = {eng}, location = {Neuveden}, isbn = {978-1-7336736-2-4}, pages = {553-558}, publisher = {Neuveden}, title = {Experimental Evaluation of Similarity Measures for Educational Items}, url = {https://educationaldatamining.org/EDM2021/EDM2021Proceedings.pdf}, year = {2021} }
TY - JOUR ID - 1784377 AU - Čechák, Jaroslav - Pelánek, Radek PY - 2021 TI - Experimental Evaluation of Similarity Measures for Educational Items PB - Neuveden CY - Neuveden SN - 9781733673624 KW - item similarity KW - evaluation KW - generalizability UR - https://educationaldatamining.org/EDM2021/EDM2021Proceedings.pdf N2 - Measuring similarity of educational items has several applications in the development of adaptive learning systems, and previous research has already proposed a wide range of similarity measures. In this work, we provide an experimental evaluation of selected similarity measures using a large dataset. The used items are alternate-choice questions for the practice of English grammar for second language learners; the dataset contains thousands of items and over 10 million student answers. Our results provide warnings about the generalizability of results presented in EDM works: 1) the results vary significantly between knowledge components and 2) the size of available data is an important factor. ER -
ČECHÁK, Jaroslav a Radek PELÁNEK. Experimental Evaluation of Similarity Measures for Educational Items. Online. In I-Han Hsiao, Shaghayegh Sahebi, Fran\c cois Bouchet, Jill-Jênn Vie. \textit{Proceedings of the 14th International Conference on Educational Data Mining}. Neuveden: Neuveden, 2021, s.~553-558. ISBN~978-1-7336736-2-4.
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