Table A1.

Average highest cosine similarity (AHS) obtained for the CNN models with DFTV dataset.

Dataset	Similarity Measure	Feature Vector Extractor Architecture
		ResNet-50	ResNet-101	ResNet-152	VGG-16	VGG-19
DFTV-1	CSSM	0.9557	0.9383	0.9298	0.9233	0.9109
	EDSM	0.6834	0.6517	0.6326	0.6338	0.6319
	JCSM	0.4369	0.4210	0.4098	0.4049	0.4016
	MBSM	0.9651	0.9588	0.9489	0.9457	0.9421
DFTV-2	CSSM	0.9587	0.9376	0.9300	0.9202	0.9090
	EDSM	0.6858	0.6511	0.6374	0.6304	0.6308
	JCSM	0.4394	0.4207	0.4117	0.4125	0.4039
	MBSM	0.9676	0.9564	0.9510	0.9428	0.9392
DFTV-3	CSSM	0.9572	0.9392	0.9327	0.9216	0.9089
	EDSM	0.6850	0.6536	0.6388	0.6321	0.6306
	JCSM	0.4383	0.4228	0.4120	0.4107	0.4041
	MBSM	0.9668	0.9579	0.9533	0.9445	0.9385
DFTV-4	CSSM	0.9566	0.9381	0.9324	0.9244	0.9114
	EDSM	0.6859	0.6541	0.6376	0.6346	0.6328
	JCSM	0.4376	0.4234	0.4122	0.4086	0.4066
	MBSM	0.9670	0.9581	0.9528	0.9440	0.9419
DFTV-5	CSSM	0.9572	0.9385	0.9319	0.9238	0.9100
	EDSM	0.6854	0.6548	0.6380	0.6335	0.6318
	JCSM	0.4370	0.4230	0.4118	0.4027	0.4006
	MBSM	0.9665	0.9587	0.9530	0.9431	0.9416
Mean		0.762	0.743	0.733	0.727	0.721
Standard Deviation		0.224	0.227	0.229	0.227	0.225