METHODS AND APPARATUS TO REDUCE COMPUTER-GENERATED ERRORS IN COMPUTER-GENERATED AUDIENCE MEASUREMENT DATA

摘要

An apparatus includes a matrix processor(504) in circuit with a probability generator(502) to determine a first matrix representative of element-wise multiplication between a constraint matrix and a first transpose matrix of the estimated demographic impression distribution, the constraint matrix based on the reference demographic impression distribution and determine a second matrix by multiplying the first matrix with a second transpose matrix of the constraint matrix. The apparatus further includes an error determiner(506) in circuit with the matrix processor(504), the error determiner(506) to determine an error indicator value based on the second matrix, the error indicator value indicative of an error associated with the estimated demographic impression distribution, and a probability generator(502) to generate, in response to the error indicator value satisfying a threshold, an accuracy-improved demographic impression distribution.