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- W2916628745 abstract "Knowledge Tracing (KT) is to trace the knowledge of students as they solve a sequence of problems represented by their related skills. This involves abstract concepts of students' states of knowledge and the interactions between those states and skills. Therefore, a KT model is designed to predict whether students will give correct answers and to describe such abstract concepts. However, existing methods either give relatively low prediction accuracy or fail to explain those concepts intuitively. In this paper, we propose a new model called Knowledge Query Network (KQN) to solve these problems. KQN uses neural networks to encode student learning activities into knowledge state and skill vectors, and models the interactions between the two types of vectors with the dot product. Through this, we introduce a novel concept called probabilistic skill similarity that relates the pairwise cosine and Euclidean distances between skill vectors to the odds ratios of the corresponding skills, which makes KQN interpretable and intuitive." @default.
- W2916628745 created "2019-03-02" @default.
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- W2916628745 date "2019-03-04" @default.
- W2916628745 modified "2023-10-10" @default.
- W2916628745 title "Knowledge Query Network for Knowledge Tracing" @default.
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- W2916628745 doi "https://doi.org/10.1145/3303772.3303786" @default.
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