| 摘要 |
Methods and apparatus to collect impressions using media object characteristics are disclosed. A disclosed example method involves, based on first instructions associated with a collector media object presented at a client device, collecting a first characteristic of the collector media object and collecting second characteristics corresponding to a plurality of second media objects that are presented at the client device concurrently with the collector media object. The example method also involves, based on second instructions associated with the collector media object, reporting multiple impressions corresponding to the collector media object and to the second media objects by sending the first and second characteristics and an identifier associated with the client device in a single communication to an audience measurement entity. |
