Attribute Extraction Study in the Field of Military Equipment Based on Distant Supervision

Table 9

Comparison of extraction results of different attribute categories.

Attributes	Precision	Recall		Number of training set samples
Subjective	0.80	0.87	0.83	3004
Nation	0.90	0.95	0.92	3032
Foreign name	0.63	0.64	0.64	716
Development time/construction time	0.50	0.48	0.49	311
Service time	0.39	0.51	0.44	423
Decommissioning time	0.50	0.14	0.22	31
Pretype/level	0.38	0.36	0.37	317
Subtype/level	0.26	0.29	0.27	105
Launch time/first flight time	0.49	0.60	0.54	293
Development unit/construction unit	0.54	0.68	0.60	556
Weight	0.70	0.84	0.76	60