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Table 5

Experimental results on different target and source domain pairs. The third column contains the ratio of the target train and source data sets' sizes in terms of sentences. DIST shows the distance of the source and target domain/genre (′-′ same; ′+′ fine-grade difference; ′++′ coarse-grade difference; bio = biological; enc = encyclopedia; sci_paper = scientific paper; sci_abs = scientific abstract; sci_paper_hbc = scientific papers on human blood cell experiments; sci_paper_fly = scientific papers on Drosophila; sci_paper_bmc = scientific papers on bioinformatics).





CROSS
TARGET
DA/ALL
DA/CUE
TARGET
SOURCE

DIST
Fcue
Fsent
Fcue
Fsent
Fcue
Fsent
Fcue
Fsent
enc sci_paper+_abs 0.9 ++/++ 68.0 74.2 82.4 87.4 82.6 87.6 82.6 87.6 
news sci_paper+_abs 6.2 ++/++ 64.4 70.5 68.7 77.1 72.7 79.5 73.8 81.0 
news enc 6.6 ++/++ 68.2 74.8 68.7 77.1 73.7 81.2 73.1 80.0 
sci_paper enc 2.7 ++/++ 67.8 75.1 78.8 84.4 80.0 85.9 79.8 85.4 
sci_paper_bmc sci_abs_hbc 4.3 +/+ 58.2 70.5 64.0 74.5 68.1 76.7 69.3 77.8 
sci_paper_fly sci_abs_hbc 3.4 +/+ 70.5 79.1 80.0 85.1 83.3 88.2 82.9 87.8 
sci_paper_hbc sci_abs_hbc 8.2 −/+ 76.5 82.9 74.2 80.2 84.2 88.6 83.0 88.9 
sci_paper_bmc sci_paper_fly+_hbc 1.8 +/− 69.8 77.6 64.0 74.5 70.0 78.2 69.4 78.1 
sci_paper_fly sci_paper_bmc+_hbc 1.2 +/− 78.4 83.5 80.0 85.1 82.6 87.0 82.9 87.0 
sci_paper_hbc sci_paper_bmc+_fly 4.4 +/− 81.7 85.9 74.2 80.2 80.7 86.9 80.7 85.9 
            
  AVERAGE: 70.4 77.4 73.5 80.6 77.8 84.0 77.8 84.0 




CROSS
TARGET
DA/ALL
DA/CUE
TARGET
SOURCE

DIST
Fcue
Fsent
Fcue
Fsent
Fcue
Fsent
Fcue
Fsent
enc sci_paper+_abs 0.9 ++/++ 68.0 74.2 82.4 87.4 82.6 87.6 82.6 87.6 
news sci_paper+_abs 6.2 ++/++ 64.4 70.5 68.7 77.1 72.7 79.5 73.8 81.0 
news enc 6.6 ++/++ 68.2 74.8 68.7 77.1 73.7 81.2 73.1 80.0 
sci_paper enc 2.7 ++/++ 67.8 75.1 78.8 84.4 80.0 85.9 79.8 85.4 
sci_paper_bmc sci_abs_hbc 4.3 +/+ 58.2 70.5 64.0 74.5 68.1 76.7 69.3 77.8 
sci_paper_fly sci_abs_hbc 3.4 +/+ 70.5 79.1 80.0 85.1 83.3 88.2 82.9 87.8 
sci_paper_hbc sci_abs_hbc 8.2 −/+ 76.5 82.9 74.2 80.2 84.2 88.6 83.0 88.9 
sci_paper_bmc sci_paper_fly+_hbc 1.8 +/− 69.8 77.6 64.0 74.5 70.0 78.2 69.4 78.1 
sci_paper_fly sci_paper_bmc+_hbc 1.2 +/− 78.4 83.5 80.0 85.1 82.6 87.0 82.9 87.0 
sci_paper_hbc sci_paper_bmc+_fly 4.4 +/− 81.7 85.9 74.2 80.2 80.7 86.9 80.7 85.9 
            
  AVERAGE: 70.4 77.4 73.5 80.6 77.8 84.0 77.8 84.0 
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