TABLE 2.

Inclusive and exclusive criteria.

Parameter of selection of a publication	Inclusion criterion	Exclusion criterion	Rationale for inclusion–exclusion
Language	English	All other languages	The working language of LDA algorithm is English.
Year	2002–2021	Publications before 2021 and after 2002	2022’s publications cannot be included because it has not been fully published
Publication Type	All	Missing data, meeting abstract, proceeding paper, book review, news item	In addition to incomplete content, try to include research articles and review
Funding sponsor	All	No exclusion	This parameter does not affect the selection criterion
Affiliation	All	No exclusion	This parameter does not affect the selection criterion
Funding	All	No exclusion	This parameter does not affect the selection criterion
Country	All	No exclusion	Publication from each country has its significance