ConceptRate Matrix
Rate Matrix
A matrix in continuous-time Markov chains that describes the instantaneous rates of state transitions. It serves as the mathematical foundation of discrete diffusion models. The rate matrix determines how probability mass flows between states over time and is central to formulating the forward and reverse processes in discrete diffusion.
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Oct 30
The vector field of ERFs is jointly determined by the forward and reverse rate matrices of the discrete diffusion model, and the continuous evolution rate of the residual depends on the row of the rate matrix corresponding to the current discrete state.
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