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Table 3 Worker performance (F-measures) on the 10 sentences of the HIT

From: OC-2-KB: integrating crowdsourcing into an obesity and cancer knowledge base curation system

  Time spent on the HIT
Sentences ≥ 0 s ≥ 120 s ≥ 300 s
Sentence 1 59.33% 60.24% 65.43%
Sentence 2 73.63% 75.03% 79.62%
Sentence 3 63.86% 65.30% 67.10%
Sentence 4 84.97% 84.78% 87.83%
Sentence 5 79.79% 80.62% 83.04%
Sentence 6 98.45% 98.37% 100.00%
Sentence 7 72.99% 74.02% 76.82%
Sentence 8 70.99% 72.67% 76.99%
Sentence 9 43.10% 43.30% 47.31%
Sentence 10 72.11% 73.54% 77.60%