| 摘要 |
<p>Methods and apparatus to count audience members are disclosed. An example method includes determining a first viewing count of a number of times that a first person was historically logged in to a measurement apparatus during a day part; determining a second viewing count of a number of times that a second person was historically logged in to the measurement apparatus during the day part; determining, using a processor, a first probability that the first person is in a current audience based on the first viewing count and the second viewing count; and when the first probability satisfies a probability threshold, prompting the audience to enter user identification.</p> |
