Consensus reaching in social network group decision making: Research paradigms and challenges Dong, Yucheng Herrera Viedma, Enrique Group decision making Social networks Consensus Opinion evolution In social network group decision making (SNGDM), the consensus reaching process (CRP) is used to help decision makers with social relationships reach consensus. Many CRP studies have been conducted in SNGDM until now. This paper provides a review of CRPs in SNGDM, and as a result it classifies them into two paradigms: (i) the CRP paradigm based on trust relationships, and (ii) the CRP paradigm based on opinion evolution. Furthermore, identified research challenges are put forward to advance this area of research. 2020-09-04T07:41:41Z 2020-09-04T07:41:41Z 2018-07 info:eu-repo/semantics/article Dong, Y., Zha, Q., Zhang, H., Kou, G., Fujita, H., Chiclana, F., & Herrera-Viedma, E. (2018). Consensus reaching in social network group decision making: Research paradigms and challenges. Knowledge-Based Systems, 162, 3-13. [https://doi.org/10.1016/j.knosys.2018.06.036] http://hdl.handle.net/10481/63284 10.1016/j.knosys.2018.06.036 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Atribución-NoComercial-SinDerivadas 3.0 España Elsevier