Exploring Sign Language Detection on Smartphones: A Systematic Review of Machine and Deep Learning Approaches

Table 3

Studies found in the selected repositories.

String	Digital repository	Studies found	Selected
Sign language detection smartphone	IEEE Xplore	8	5
	ScienceDirect	711	7
	ACM Digital Library	26053	16
	Google Scholar	17900	37
	Total	44672	65
Sign language recognition using a smartphone	IEEE Xplore	21	13
	ScienceDirect	593	7
	ACM Digital Library	62275	22
	Google Scholar	17600	35
	Total	80489	77
Sign language smartphone deep learning	IEEE Xplore	7	4
	ScienceDirect	1231	5
	ACM	39102	23
	Google Scholar	17100	29
	Total	57437	61
Real-time smartphone sign language	IEEE Xplore	19	7
	ScienceDirect	1233	6
	ACM	32921	21
	Google Scholar	17100	44
	Total	51262	78
	Grand total	233860	281
After removing duplicates			163