“…Opinion dynamics are manifest in diverse application areas [4,5], including marketing campaigns [1,6], public sentiment [7,8], political elections [9,10] and group decision-making [11,12]. These studies can be summarized under five topics: (i) opinion dynamics in different expression formats [13][14][15], (ii) modelling different evolution rules [16][17][18], (iii) opinion dynamics in heterogeneous environments [19][20][21], (iv) strategies and optimization for opinion control [22][23][24], and (v) opinion dynamics integrated with traditional group decision-making problems [25][26][27].…”