“…Approaches to (co-)citation were combined with bibliometrics, network analysis, textual information, and author collaboration, (Ding, 2011;Ganguly and Pudi, 2017;Buntine, 2014, 2016) evaluated (Boyack and Klavans, 2010;Leydesdorff and Vaughan, 2006;Lu and Wolfram, 2012) and used in varying areas such as recommender systems (Habib and Afzal, 2017;Küçüktunç et al, 2012), journal ranking (Kalaitzidakis et al, 2003), and classification (Leydesdorff, 2004). Increasingly, (co-)citation as an appropriate method for building science and literature graphs became commonly accepted (Radicchi et al, 2012) so that emphasis was placed on network metrics of these graphs in different domains (Brughmans, 2013;Caschili et al, 2014;Ji and Jin, 2016;Popp et al, 2018;Wei et al, 2015) and for a variety of use cases such as author name disambiguation (Schulz et al, 2014), comparing data providers (Šubelj et al, 2014), subject indexing (Wei et al, 2015), research trend detection (Asatani et al, 2018;Cabeza Ramírez et al, 2019;Hosseini et al, 2018;Kleminski et al, 2020), systematic reviews (Xu and Kajikawa, 2018), science mapping (Ferreira, 2018), journal citation networks (Leydesdorff et al, 2018), and information retrieval (Eto, 2019;Petri et al, 2014).…”