Fig. 4
From: DeepMPM: a mortality risk prediction model using longitudinal EHR data
DeepMPM’s representation learning on disease codes: HAMD_ID represents the ID of diagnosis record, and each record has corresponding varying-length coding sequence. Firstly, all sequences are represented as a binary matrix, and then mapped to a specific vector space, and the varying-length sequence is transformed into multi-dimensional equal-length non-negative vector