Table 1.

Categorizing the various artificial intelligence methods in appointment scheduling 2021–2022.

Publications	CNN	DNN	ANN	ACO	PSO	GA	WOA
Muhammad et al. [21]	∗
Kumari et al. [22]						∗	∗
Shilong et al. [23]				∗			∗
Bisoy et al. [24]					∗
Sarkar et al. [25]					∗
Jiang et al. [26]				∗
Gao et al. [27]					∗
Vukobrat et al. [28]			∗
Kirchohf et al. [29]	∗
Nair et al. [30]		∗