Table 4.

Comparison of machine learning approaches on the best retrieval technique (for scientific abstracts, the Both Gene and Disease expanded w/ partial catchers (PC); for clinical trials the gene expanded query).

	Baseline	L2R	Deep Learning
Abstracts (infNDCG)	0.4603	0.4603	0.4544
Trials (P@10)	0.4103	0.4103	0.3897