Table 4.

Analysis of the NCA method using performance evaluation criteria.

Source Data	BLEU-1	BLEU-2	BLEU-3	BLEU-4	ROUGE-N	ROUGE-L	ROUGE-W	WER
MIMIC_IM_1.png	0.546	0.647	0.596	0.451	0.892	0.719	0.552	0.156
MIMIC_IM_2.png	0.661	0.762	0.711	0.596	0.807	0.676	0.509	0.146
MIMIC_IM_3.png	0.569	0.674	0.621	0.526	0.915	0.734	0.563	0.197
MIMIC_IM_4.png	0.686	0.787	0.736	0.571	0.932	0.739	0.572	0.191
MIMIC_IM_5.png	0.556	0.657	0.606	0.481	0.902	0.724	0.557	0.103
ISIC_0188955.jpg	0.446	0.547	0.496	0.351	0.792	0.669	0.502	0.041
ISIC_1684127.jpg	0.496	0.597	0.546	0.301	0.842	0.694	0.527	0.158
ISIC_7205745.jpg	0.507	0.608	0.557	0.334	0.853	0.699	0.532	0.198
ISIC_0464315.jpg	0.521	0.622	0.571	0.376	0.867	0.706	0.539	0.174
ISIC_5365617.jpg	0.487	0.588	0.537	0.374	0.833	0.689	0.522	0.184
IU_IMG_1.jpg	0.542	0.643	0.592	0.439	0.888	0.717	0.550	0.101
IU_IMG_2.jpg	0.576	0.677	0.626	0.541	0.922	0.734	0.567	0.094
IU_IMG_3.jpg	0.503	0.604	0.553	0.422	0.849	0.697	0.536	0.148
IU_IMG_4.jpg	0.589	0.693	0.641	0.585	0.935	0.741	0.573	0.144
IU_IMG_5.jpg	0.616	0.597	0.626	0.511	0.912	0.729	0.562	0.142
NIH_IMG_1.jpg	0.686	0.687	0.636	0.511	0.943	0.744	0.577	0.146
NIH_IMG_2.jpg	0.556	0.657	0.606	0.481	0.954	0.75	0.586	0.126
NIH_IMG_3.jpg	0.446	0.547	0.496	0.351	0.868	0.707	0.542	0.143
NIH_IMG_4.jpg	0.496	0.597	0.546	0.301	0.934	0.745	0.573	0.136
NIH_IMG_5.jpg	0.507	0.608	0.557	0.334	0.789	0.667	0.583	0.174
Tr-gl_0010.jpg	0.521	0.622	0.571	0.376	0.823	0.684	0.517	0.084
Tr-gl_0011.jpg	0.487	0.588	0.537	0.374	0.852	0.701	0.533	0.121
Tr-me_0026.jpg	0.542	0.643	0.592	0.439	0.839	0.692	0.525	0.094
Tr-no_0018.jpg	0.576	0.677	0.626	0.541	0.913	0.729	0.562	0.148
Tr-pi_0013.jpg	0.503	0.604	0.553	0.422	0.892	0.719	0.552	0.174