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Table 2 Average number of keywords (K >= 0.5) shared by two sections for the corpus of 104 articles.

From: Information extraction from full text scientific articles: Where are the keywords?

  A I M R D
A   2.01 0.92 1.77 2.20
I 2.01   0.81 1.34 2.02
M 0.92 0.81   1.55 1.02
R 1.77 1.34 1.55   1.99
D 2.20 2.02 1.02 1.99