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Table 2 Corpus information

From: Supporting systematic reviews using LDA-based document representations

  Positive instances Total instances Ratio Feature used Type
Youth development 1440 14,538 0.099 Title + abstract Social science
Cigarette packaging 132 3156 0.041 Title + abstract Social science
COPD 196 1606 0.122 Title + abstract Clinical trial
Cooking skill 197 9439 0.021 Text Social science
Proton beam 243 4751 0.051 Title + abstract Clinical trials