Table 3.

Performance comparison of different sampling strategies

Strategy	Overall F1	Malig	Normal	Inflam	Spindle	Misc
No resampling	0.770	0.621	0.504	0.622	0.647	0.173
Uniform	0.765	0.596	0.541	0.623	0.566	0.150
Type-aware	0.767	0.620	0.497	0.645	0.576	0.335

Malig Malignant epithelial, Normal Normal epithelial, Inflam Inflammatory, Misc Miscellaneous