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Table 4 Overall worker performance in the pilot study

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

Time spent Number of workers F
≥ 0 s (0 s per sentence) 193 71.92%
≥ 120 s (12 s per sentence) 184 72.79%
≥ 300 s (30 s per sentence) 115 76.17 %