Table 4:

Validation Dataset Results

Method	# terms	macro-F impr	micro-F impr	#desc	#depth
Sec 2.1	131	0.019	0.011	51.59	3.39
Sec 2.3	341	0.018	0.011	48.96	3.55
Sec 2.4	342	0.018	0.018	48.15	3.55
Sec 2.5	317	0.012	0.007	69.32	3.46
Hybrid	536	0.017	0.015	60.00	3.48