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AR model
AR model An AR model, here meaning a conditional Poisson autoregressive model, is a statistical time-series approach that uses earlier observations to describe how current count data vary over time.
An AR model, here meaning a conditional Poisson autoregressive model, is a statistical time-series approach that uses earlier observations to describe how current count data vary over time. In this context, it is used to capture departures from an expected power-law pattern, such as changes in posting activity around social events.