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Distribution of chemical annotations for train/dev/test set.
| Set | Number of Articles | Number of Chemical Annotations | Mean Number of Chemical Annotations Per Article | Stdev Of Chemical Annotations Per Article | P-Value Of T-Test Hypothesis That Sample Mean Is Significantly Different from Mean of Full Corpus |
|---|---|---|---|---|---|
| Train | 80 | 22512 | 281.40 | 165.06 | 0.60 |
| Dev | 20 | 5546 | 277.30 | 167.46 | 0.85 |
| Test | 50 | 12409 | 248.18 | 157.40 | 0.41 |
