Table 2 Evaluation criteria for the three entity recognition tasks
From: Entity recognition from clinical texts via recurrent neural network
Challenge | Criterion | Remarks |
|---|---|---|
2010 | Exact* | Entities have the same boundary and same type. |
Inexact | Entities overlap and have the same type. | |
2012 | Span* | Entities overlap |
Type | Entities overlap and have the same type. | |
2014 | Exact* | Entities have the same boundary and same type. |
Token | “Exact” criterion at token-level. |