| 摘要 |
<p>A computer system for buying and selling online advertising comprises a user data store which includes an impression global-frequency associated with each impression consumer. The computer system is configured to: receive a call for an advertisement creative to be served to an impression consumer; and responsive to the call, to send an update notification to the user data store. The update notification includes instructions to increment the impression global-frequency associated with the impression consumer by a predetermined value. The predetermined value can be 1. A computer implemented method and a computer readable medium are also claimed. Other inventions are also claimed.</p> |
