Fig. 2.

Three different forms of the representation of patients. Here, patient may have various inpatient times (e.g., x,y,z). The tensor representation of each patient consists of multiple multi-hot vectors of N-dimensions (i.e., N=1309). The statistic-based representation is derived by operating summary statistics, and it gets a vector with N-dimensions. Typically, distributed representation is a better representation with D-dimensions (i.e., D=300), where D is much lower than N. a Tensor representation of patients. b Statistic-based representation of patients. c Distributed representation of patients