CAC: A Learning Context Recognition Model Based on AI for Handwritten Mathematical Symbols in e-Learning Systems

Sung-Bum Baek, Jin-Gon Shon and Ji-Su Park
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Sung-Bum Baek: Department of e-Learning, Graduate School, Korea National Open University, Seoul 03087, Korea
Jin-Gon Shon: Department of Computer Science, Korea National Open University, Seoul 03087, Korea
Ji-Su Park: Department of Computer Science and Engineering, Jeonju University, Jeonju 55069, Korea

Mathematics, 2022, vol. 10, issue 8, 1-22

Abstract: The e-learning environment should support the handwriting of mathematical expressions and accurately recognize inputted handwritten mathematical expressions. To this end, expression-related information should be fully utilized in e-learning environments. However, pre-existing handwritten mathematical expression recognition models mainly utilize the shape of handwritten mathematical symbols, thus limiting the models from improving the recognition accuracy of a vaguely represented symbol. Therefore, in this paper, a context-aided correction (CAC) model is proposed that adjusts an output of handwritten mathematical symbol (HMS) recognition by additionally utilizing information related to the HMS in an e-learning system. The CAC model collects learning contextual data associated with the HMS and converts them into learning contextual information. Next, contextual information is recognized through artificial intelligence to adjust the recognition output of the HMS. Finally, the CAC model is trained and tested using a dataset similar to that of a real learning situation. The experiment results show that the recognition accuracy of handwritten mathematical symbols is improved when using the CAC model.

Keywords: handwritten mathematical symbol recognition; learning context; contextual data; contextual information (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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