Table 1.

Dataset

Dataset	Chemical names	Positives	Negatives	Total
Training	2-Acetylaminofluorene	81	97	178
	Amsacrine	37	32	69
	Aniline	100	126	226
	Aspartame	46	110	156
	Doxorubicin	138	61	199
	Indomethacin	76	9	85
	Quercetin	392	150	542
	Raloxifene	161	109	270
Test	Cyclophosphamide	107	47	154
	Phenacetin	65	21	86
	Urethane	106	98	204

The training and test sets include eight and three target chemicals, respectively. Because the ratio of positive and negative examples varies with target chemicals, our system is tuned to achieve high MAP score on the training chemicals.