I've been looking for information diffusion models through (social) networks for a few weeks. However i couldn't find anything that could answer my question: if I were to tweet something, to publish some facebook or linkedin post, what is the model that better depicts the people I'll reach?

Many papers use the SIR model, as information spreads on social media like a virus. However they lack estimates of coefficients such as beta (infection probability) or gamma (removal probability).

Has no one really thought about this?