Attention weights.

The attention weights for TextCNN (AttnToNum embeddings) of the 10th experiment for phrases of the template: “_date_ (BUN|creatinine) 6.3 (H|L).” The 2nd head focuses on the number’s magnitude if the physician labeled the test as high, (H). The 4th and 5th heads focus on physician label and _date_, respectively. The 3rd head focuses on test label if the label is low, (L). The 1st head focuses on metric if the metric is creatinine.