Table 3 Characteristics (counts of sentences, words, and entities, words per sentence, entities per sentence, and entity density) in five folds of the dataset and the pool of querying data
From: An active learning-enabled annotation system for clinical named entity recognition
| Â | Sentence count | Word count | Entity Count | Words per sentence | Entities per sentence | Entity densitya |
|---|---|---|---|---|---|---|
Fold 1 | 4,085 | 44,403 | 5,395 | 10.87 | 1.32 | 0.25 |
Fold 2 | 4,085 | 45,588 | 5,183 | 11.16 | 1.27 | 0.24 |
Fold 3 | 4,084 | 45,355 | 5,201 | 11.11 | 1.27 | 0.24 |
Fold 4 | 4,085 | 45,141 | 5,263 | 11.05 | 1.29 | 0.25 |
Fold 5 | 4,084 | 44,834 | 5,177 | 10.98 | 1.27 | 0.24 |
Pool (Fold 2 + 3 + 4 + 5) | 16,338 | 180,918 | 20,824 | 11.07 | 1.27 | 0.24 |