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Table 2 Top 10 bigram features ranked with the S score.

From: A linear classifier based on entity recognition tools and a statistical approach to method extraction in the protein-protein interaction literature

w i , w j p P p N S
interact--with 0.3001 0.0397 0.2604
interact--between 0.1062 0.026 0.0802
complex--with 0.089 0.013 0.076
crystal--structur 0.0804 0.0218 0.0586
yeast--two-hybrid 0.0542 0.0 0.0542
protein--interact 0.052 0.0045 0.0475
here--report 0.0856 0.0384 0.0472
protein--kinas 0.0679 0.0224 0.0455
transcript--factor 0.0851 0.0415 0.0436
ubiquitin--ligas 0.0396 0.0031 0.0364