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. Author manuscript; available in PMC: 2015 Jun 2.
Published in final edited form as: J Biomed Inform. 2013 Apr 6;46(4):585–593. doi: 10.1016/j.jbi.2013.04.001

Table 1.

Comparison of drug-gene extraction using different types of seeds: PGx-specific seeds (“Warfarin-CYP2C9” and “Caffeine-CYP1A2”), non PGx-specific seed (“Captopril-ACE”) and no seeds (“None”)

Document Type Round Seed N Precision Recall F1
Sentence 1 Warfarin-CYP2C9 391 0.340 0.085 0.136
2 2,622 0.219 0.368 0.274
3 8,844 0.103 0.583 0.175
1 Caffeine-CYP1A2 397 0.270 0.069 0.109
2 2,578 0.195 0.322 0.243
3 8,534 0.097 0.529 0.164
1 Captopril-ACE 319 0.053 0.011 0.018
2 2,545 0.011 0.018 0.014
3 14,278 0.015 0.134 0.026
Co-occurrence None 102,916 0.015 1.000 0.030
Abstract 1 Warfarin-CYP2C9 1,262 0.222 0.134 0.167
2 12,580 0.085 0.511 0.145
3 68,415 0.025 0.823 0.049
1 Caffeine-CYP1A2 1,028 0.198 0.098 0.131
2 10,793 0.09 0.467 0.151
3 69,653 0.025 0.796 0.049
1 Captopril-ACE 897 0.025 0.011 0.015
2 20,106 0.015 0.144 0.027
3 96,086 0.016 0.749 0.032
Co-occurrence None 190,452 0.011 1.000 0.022