Question Answering in STACK Applying String Similarity
DOI:
https://doi.org/10.3991/ijet.v17i23.35893Keywords:
online assessment, question answering, STACK, CAS, Damerau-Levenshtein edit distance, string metric, string similarity, e-learning, Natural Language ProcessingAbstract
We present a method to evaluate fill-in-the-blank student answers in STACK using a string metric, which is not possible in the current version of STACK. To increase the quality of the evaluation, we use whitelist and blacklist instead of a single teacher answer. The performance of a STACK question equipped with a string metric is quantitatively demonstrated by evaluating its use in mathematics courses.
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Copyright (c) 2022 Andreas Helfrich-Schkarbanenko, Achim Eichhorn
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