Table 1.

Top most cited papers in recent years.

Year	Reference	Datasets	Dataset limitations	Research limitations	Results Comparison
2019	H. Saleem (Saleem et al., 2019)	$\times$	$\times$	$\times$	$\times$
2019	S. Kaur (Kaur et al., 2019)	$\times$	$\times$	√	√
2021	Liu J (Liu and Wang, 2021).	√	√	√	$\times$
2021	Ngugi L.C (Ngugi et al., 2021).	√	$\times$	√	√
2019	Shruthi U (Shruthi et al., 2019).	$\times$	$\times$	$\times$	√
2021	Dhaka V.S (Dhaka et al., 2021).	√	$\times$	√	√
2021	Li L (Li et al., 2021).	√	$\times$	√	√
2020	Hassan R.I (Hasan et al., 2020).	$\times$	√	√	√
2020	Nagaraju M (Nagaraju and Chawla, 2020).	√	$\times$	√	√
2020	Singh V (Singh et al., 2020).	$\times$	$\times$	$\times$
2020	Chouhan S.S (Chouhan et al., 2020).	$\times$	$\times$	$\times$	$\times$
–	Ours	√	√	√	√