“…Most approaches recommend code reviewers based on the similarity between files modified or reviewed by each developer and the files of a new pull request (path similarity) [87,106,122,144,145,158,187,198,204,222,230,238,242,268,271,273,275,279]. Some studies include other 107:15 predictors such as previous interactions between submitter and potential reviewers [144,145,187,273,275,285], pull request content similarity [145,211,268,275], contribution to similar files [122,158,231,274], review linkage graphs [132], and developer activeness in a project [144,145,158,211,271]. Another popular predictor to recommend code reviewers is the similarity between the content of previous and new pull requests [145, 152, 166, 268-270, 275, 276].…”