“…Undoubtedly, Process discovery becomes particularly critical for unstructured processes where model complexity rises. Several contributions recognize significant problem of current process discovery methodologies when handling unstructured processes (e.g., Bose et al, 2013; Song et al, 2013; van der Aalst, 2016; Yahya, Song, Bae, Sul, & Wu, 2016). Specifically, case heterogeneity (high ratio between the number of different process traces and process instances) typically leads to extract extremely complex and often incomprehensible process models (Bose et al, 2013; Diamantini, Genga, & Potena, 2016).…”