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Table 3 Annotation quality on DH

From: Crowdsourcing BIM-guided collection of construction material library from site photologs

DH

G

C

R

NG5

Annotator A

51

33

3

7 5

Annotator B

15

11

0

11 5

Annotator C

362

76

0

43 5

Total

428

120

3

61 5