Cross-modal problem Q matrix automatic construction method based on heterogeneous graph neural network
A neural network and automatic construction technology, applied in the field of expert systems, can solve problems such as inapplicability of cross-modality and loss of accuracy, and achieve the effects of reducing computational burden, improving accuracy, and increasing connections.
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[0127] DETAILED DESCRIPTION
[0128] Based on the across moderative problem Q matrix automatic construction method based on heterogeneous diagram neural network, the model consists of two sub-modules: a cross-media problem and knowledge point relationship module, a link prediction module based on heterogeneous neural network . Overall model diagram figure 1 As shown, specifically as follows:
[0129] 1. Construction of relationship map of cross-media issues and knowledge points;
[0130] In the field of education, the Q matrix refers to a binary matrix that displays the relationship between problems and knowledge points, wherein the row of Q matrices represents problems, and lists the knowledge points. The process of building a Q matrix is also a process of looking for a corresponding relationship between problems and knowledge points. If the problem is regarded as different nodes, the correspondence between them can construct a heterogeneous map. The correspondence between the ...
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