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2020 ; 11
(12
): 2849-2856
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A hybrid method of recurrent neural network and graph neural network for
next-period prescription prediction
#MMPMID33727983
Liu S
; Li T
; Ding H
; Tang B
; Wang X
; Chen Q
; Yan J
; Zhou Y
Int J Mach Learn Cybern
2020[]; 11
(12
): 2849-2856
PMID33727983
show ga
Electronic health records (EHRs) have been widely used to help physicians to make
decisions by predicting medical events such as diseases, prescriptions, outcomes,
and so on. How to represent patient longitudinal medical data is the key to
making these predictions. Recurrent neural network (RNN) is a popular model for
patient longitudinal medical data representation from the view of patient status
sequences, but it cannot represent complex interactions among different types of
medical information, i.e., temporal medical event graphs, which can be
represented by graph neural network (GNN). In this paper, we propose a hybrid
method of RNN and GNN, called RGNN, for next-period prescription prediction from
two views, where RNN is used to represent patient status sequences, and GNN is
used to represent temporal medical event graphs. Experiments conducted on the
public MIMIC-III ICU data show that the proposed method is effective for
next-period prescription prediction, and RNN and GNN are mutually complementary.