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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 2.

Comparison of drug-gene extraction using different number of seeds: none, one, two, and 68 PGx-specific seeds.

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 Warfarin-CYP2C9+Caffeine-CYP1A2 669 0.281 0.120 0.169
2 3146 0.192 0.386 0.256
3 10811 0.087 0.603 0.152
1 68 FDA drug-gene pairs 1524 0.278 0.272 0.275
2 4767 0.171 0.522 0.258
3 15798 0.069 0.701 0.126
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 Warfarin-CYP2C9+Caffeine-CYP1A2 1,879 0.185 0.167 0.175
2 15,434 0.075 0.554 0.132
3 77,344 0.023 0.836 0.044
1 68 FDA drug-gene pairs 3,886 0.165 0.308 0.215
2 26,089 0.057 0.711 0.105
3 99,376 0.018 0.876 0.036
Co-occurrence None 190,452 0.011 1.000 0.022