... Recent studies applied several bibliometric analyses to comprehensively review scientific collaborations in GIScience theory and practices, including Geography and GIS (Fish & Piekielek, 2016;Gorraiz et al., 2016;Hu et al., 2019;F Liu et al., 2016;Mohamad et al., 2013;Wei et al., 2015), global geo-ontology research (Li et al., 2017), remote sensing and GIS (L Wang et al., 2019), geographic open data (Y Zhang et al., 2018), energy research (Farooq et al., 2018), GI and pollution research (Jiang, Huo, et al., 2019;Yang et al., 2017), geophysical modeling (X Li & Lei, 2019), artificial intelligence (Niu et al., 2016), and economic geography (ZZhu et al., 2019). These studies examined the research trends in GIS both at the national or regional levels (Chatterjee & Sahasranamam, 2018;Shehatta & Mahmood, 2016) and at the global scale (F Liu et al., 2016). However, evaluating the overall global trends in GI research is challenging due to its wide spectrum of applications. ...