Patent ID: 8739194

Claim:
A method comprising: identifying a first audience member present in a statistically selected location at a first time, the statistically selected location comprising a receiver presenting first media in association with a source identification of the first media at the first time; incrementing a stored first count of a number of times the first audience member is in the statistically selected location during a day part corresponding to the first time, wherein the first count corresponds to the source identification of the first media tuned by the receiver at the first time; incrementing a stored tuning occasion count of a number of times the receiver in the statistically selected location was used during the day part, the stored tuning occasion count corresponding to the source identification of the first media; identifying a second audience member present in the statistically selected location at a second time, the receiver presenting second media in association with the source identification of the first media at the second time; incrementing a stored second count of a number of times the second audience member is in the statistically selected location during the day part, wherein the second count corresponds to the source identification of the first media; incrementing the stored tuning occasion count for the statistically selected location for the day part and the source identification of the first media; determining a probability that an unidentified audience member in the statistically selected location at a third time is the first audience member based on the first count, the second count, and the tuning occasion count; and incrementing a count associated with the first audience member based on a comparison of the probability to a threshold.