| 主权项 |
1. A method to determine ratings data, comprising:
sending, from a processor of an audience measurement entity, a first request for demographic information corresponding to second requests received at the audience measurement entity; determining, by executing a first instruction with the processor, a first number of audience members who are associated with a first demographic group based on the demographic information and based on the second requests received at the audience measurement entity; reducing an error present in a misattribution matrix, the misattribution matrix describing a probability that an audience member observed to be in the first demographic group is actually in a second demographic group, reducing the error by:
generating, by executing a second instruction with the processor, a multinomial distribution from the misattribution matrix;generating, by executing a third instruction with the processor, samples of the multinomial distribution;converting, by executing a fourth instruction with the processor, the samples to a plurality of misattribution matrices; andapplying, by executing a fifth instruction with the processor, the first number of audience members to the plurality of misattribution matrices to estimate a second number of audience members who are attributable to the second demographic group; and determining, by executing a sixth instruction with the processor, ratings data for media based on the second number of audience members who are attributable to the second demographic group. |
