Learning Large Q-Matrix by Restricted Boltzmann Machines
Learning Large Q-Matrix by Restricted Boltzmann Machines
复制标题
通过受限玻尔兹曼机学习大型 Q 矩阵
DOI:
10.1007/s11336-021-09828-4
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发表时间:
2022
期刊:
影响因子:
3
通讯作者:
Xu, Gongjun
中科院分区:
文献类型:
--
作者:
Li, Chengcheng;Ma, Chenchen;Xu, Gongjun
Estimation of the large Q-matrix in cognitive diagnosis models (CDMs) with many items and latent attributes from observational data has been a huge challenge due to its high computational cost. Borrowing ideas from deep learning literature, we propose to learn the large Q-matrix by restricted Boltzmann machines (RBMs) to overcome the computational difficulties. In this paper, key relationships between RBMs and CDMs are identified. Consistent and robust learning of the Q-matrix in various CDMs is shown to be valid under certain conditions. Our simulation studies under different CDM settings show that RBMs not only outperform the existing methods in terms of learning speed, but also maintain good recovery accuracy of the Q-matrix. In the end, we illustrate the applicability and effectiveness of our method through a TIMSS mathematics data set.
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发表时间:
2018
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影响因子:
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作者:
DeCarlo, Lawrence T.
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