DENSIFICATION OF LONGITUDINAL EMR FOR IMPROVED PHENOTYPING

摘要

Systems and methods for data densification include representing patient data as a sparse patient matrix for each patient. The sparse patient matrix is decomposed into a plurality of matrices including a concept matrix indicating medical concepts of the patient data and an evolution matrix indicating a temporal relationship of the medical concepts. Missing information in the sparse patient matrix is imputed using a processor based on the plurality of matrices to provide a densified patient matrix.

主权项

1. A method for data densification, comprising:
representing patient data as a sparse patient matrix for each patient; decomposing the sparse patient matrix into a plurality of matrices including a concept matrix indicating medical concepts of the patient data and an evolution matrix indicating a temporal relationship of the medical concepts; and imputing missing information in the sparse patient matrix using a processor based on the plurality of matrices to provide a densified patient matrix.