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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