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Table 1. 
The average number of relations per publication (ANR) and the percentage of publications without relations (PWR) for different fields of science and different citation-based and text-based relatedness measures
 Cell biologyCondensed matter physicsEconomics
ANRPWRANRPWRANRPWR
DC 11.3 8.5% 7.5 12.3% 8.0 11.0% 
BC 32.4 0.5% 31.3 1.0% 30.6 4.3% 
CC 25.7 13.5% 19.6 20.0% 16.9 30.7% 
DC-BC-CC (α = 1) 32.3 0.4% 31.3 0.7% 30.9 2.7% 
DC-BC-CC (α = 5) 31.6 0.4% 30.5 0.7% 29.8 2.7% 
EDC 69.0 0.3% 39.5 0.7% 24.2 2.6% 
BM25 31.7 0.0% 32.0 0.3% 32.1 0.2% 
CT (β = 0.0) 38.1 0.0% 38.6 0.3% 38.5 0.2% 
CT (β = 0.5) 31.0 0.0% 29.6 0.3% 30.3 0.2% 
CT (β = 1.0) 26.3 0.0% 26.8 0.3% 27.0 0.2% 
 Cell biologyCondensed matter physicsEconomics
ANRPWRANRPWRANRPWR
DC 11.3 8.5% 7.5 12.3% 8.0 11.0% 
BC 32.4 0.5% 31.3 1.0% 30.6 4.3% 
CC 25.7 13.5% 19.6 20.0% 16.9 30.7% 
DC-BC-CC (α = 1) 32.3 0.4% 31.3 0.7% 30.9 2.7% 
DC-BC-CC (α = 5) 31.6 0.4% 30.5 0.7% 29.8 2.7% 
EDC 69.0 0.3% 39.5 0.7% 24.2 2.6% 
BM25 31.7 0.0% 32.0 0.3% 32.1 0.2% 
CT (β = 0.0) 38.1 0.0% 38.6 0.3% 38.5 0.2% 
CT (β = 0.5) 31.0 0.0% 29.6 0.3% 30.3 0.2% 
CT (β = 1.0) 26.3 0.0% 26.8 0.3% 27.0 0.2% 
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