“…Burke et al [18] 1996 KB, specific features, complex decision Shearin and Lieberman [38] 2001 RL, specific features Oh and Tan [37] 2005 RL, sparsity Malczewski and Jelokhani [32] 2012 MCDM, KB, conflicting criteria Yuan et al [31] 2013 KB, specific features Wang et al [24] 2013 CF Tonara et al [59] 2013 sparsity Daly et al [33] 2014 MCDM, specific features Chulyadyo and Leray [34] 2014 MCDM, cold-start Ho et al [35] 2015 MCDM, conflicting criteria Alrawhani et al [30] 2016 KB Li et al [41] 2017 XGBOOST, complex decision Knoll et al [21] 2018 CF, cold-start Yu et al [22] 2018 CF, cpecific features Badriyah et al [28] 2018 CB Ojokoh et al [40] 2018 HB, complex decision Zhang et al [27] 2019 CB, cold-start, complex decision Liu and Guo [25] 2019 CF Tas et al [39] 2019 HB Milkovich et al [19] 2020 CF Rehman et al [20] 2020 CF, cold-start Kabir et al [26] 2020 CB Jun et al [23] 2020 CF Chonwiharnphan et al [42] 2020 GAN, cold-start Li et al [29] 2020 CB Das et al [36] 2021 MCDM, conflicting criteria Table A2. Summary of the selected papers with their journal/conference names and number of citations.…”