Research on Effectiveness Modeling of the Online Chat Group

Table 2

Symbols of dependent variables.

Symbol	Definition
𝑁𝑎	Number of active members in a steady group
𝑚	Average number of interesting topics per member
𝑀	Number of topics in a group
1/𝛼	Average duration of each group member’s active state per cycle
𝑟	Average number of uninteresting topics that each member can tolerate
𝑃	Appearance probability of interesting topics
𝑠	Average number of interesting topics acquired within unit time by a member per cycle
𝑠𝑖	Average number of interesting topics acquired by a member per cycle
𝑠𝑢	Average number of uninteresting topics acquired by a member per cycle
𝜇	The ratio of interesting topics acquired by a member