plss can anyone give me an idea for making a model on topic diffusion...
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Answers
hi mate,
Answer: Diffusion of innovations is a theory that seeks to explain how, why, and at what rate new ideas and technology spread. ... Rogers argues that diffusion is the process by which an innovation is communicated over time among the participants in a social system
Diffusion Definition. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. ... For instance, a gas diffuses very quickly in another gas. An example of this is the way the noxious smell of ammonia gas spreads in air.
Perception
Ratcliff's diffusion model has been used to study the time course of processing when a stimulus is presented briefly, then masked (Ratcliff and Rouder 2000). In this situation, the amount of information coming into the decision process could either increase during stimulus presentation and then begin to fall during mask presentation, or the information coming into the decision process could be an integration of the total information available from the stimulus, from its onset until the mask is presented. Only with the latter assumption could the data be well fit by the diffusion model.
Populations With Dense Versus Sparse Networks
An important question in diffusion models is whether ‘more’ interaction in networks always leads to larger multiplier effects and more rapid diffusion. It can be shown that already in simple models such as Eqn. (1) social networks can be status-quo enforcing: the long-term effect associated with changes in the program effort can decrease with an increase in parameter α, which reflects the importance of the network influences in individual fertility decisions. The changes in contraceptive use resulting from changes in the program effort can therefore be smaller for very densely knit societies than for more sparse societies.
i hope it helps you.
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