model These new active nodes further influence some of their neighbors,and so on, until no more nodes are influenced,reaching a set Sfinal. o“Final active set”. ■ For a social graph G=(V,E),a stochastic diffusion model specifies how active sets St, for all t≥1，is generated,given the initial seed set So.model ◼ These new active nodes further influence some of their neighbors, and so on, ◼ until no more nodes are influenced, reaching a set 𝑆final. ❑ “Final active set”. ◼ For a social graph 𝐺 = 𝑉, 𝐸 , a stochastic diffusion model specifies how active sets 𝑆𝑡 , for all 𝑡 ≥ 1, is generated, given the initial seed set 𝑆0. 7