Table 4 The NER results of the Base scale models were evaluated on four entities excluding normal entities.

Type		base BERT	base scratch v1	base scratch v2	base continual v1	base continual v2	base BioBERT	Cardio BERTpt
B-BP(1)	P	0.936	0.967	0.979	0.982	0.971	0.965	0.945
	R	0.622	0.631	0.632	0.699	0.637	0.624	0.618
	F	0.747	0.763	0.768	0.817	0.770	0.758	0.748
I-BP(2)	P	0.893	0.966	0.965	0.961	0.954	0.925	0.935
	R	0.761	0.770	0.788	0.790	0.775	0.772	0.746
	F	0.821	0.857	0.868	0.867	0.855	0.842	0.830
B-DN(3)	P	0.942	0.985	0.984	0.973	0.982	0.949	0.950
	R	0.453	0.887	0.860	0.498	0.747	0.439	0.449
	F	0.612	0.933	0.918	0.659	0.848	0.601	0.610
I-DN(4)	P	0.800	0.971	0.791	1.00	1.00	0.938	0.941
	R	0.291	0.589	0.607	0.250	0.482	0.273	0.291
	F	0.427	0.733	0.687	0.40	0.651	0.423	0.444
B-DN(5)	P	0.874	0.972	0.946	0.876	0.947	0.898	0.892
	R	0.752	0.817	0.835	0.851	0.838	0.771	0.764
	F	0.808	0.888	0.887	0.863	0.889	0.830	0.823
I-DN(6)	P	0.893	0.852	0.835	0.798	0.777	0.887	0.892
	R	0.693	0.724	0.752	0.782	0.770	0.702	0.709
	F	0.780	0.783	0.791	0.790	0.774	0.783	0.790
B-MP(7)	P	0.919	0.975	0.982	0.972	0.975	0.942	0.959
	R	0.500	0.604	0.692	0.542	0.841	0.509	0.518
	F	0.648	0.746	0.812	0.696	0.903	0.661	0.672
I-MP(8)	P	0.925	0.841	0.925	0.902	0.822	0.902	0.878
	R	0.673	0.685	0.685	0.685	0.685	0.673	0.679
	F	0.779	0.755	0.787	0.779	0.747	0.771	0.766

In the table, the types correspond to BP, body part; DR, drug name; DN, disease name and MP, medical procedure.
Significant values are in [bold].

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