| 摘要 |
Methods and apparatus for audience measurement using global signature representation and matching are disclosed. An example method to determine whether a monitored media content presentation corresponds to a reference content source disclosed herein comprises creating a track corresponding to the reference content source and representative of a history of signature matching results when a first site signature in a plurality of site signatures corresponding to the monitored media content presentation and a first reference signature in a plurality of reference signatures corresponding to the reference content source are determined to match at a particular time offset between the first site signature and the first reference signature according to a histogram representing a plurality of distances between the first site signature and the first reference signature corresponding to a respective plurality of time offsets between the first site signature and the first reference signature.
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