Yahoo Ad Tech LLC

Milena Petrova Krasteva

Lakshmi Narayan Bhamidipati

Joel Barajas Zamora

Lioz Medina

Ilya Nathaniel Slain

One or more computing devices, systems, and/or methods for selecting content items for transmission to client devices are provided. A request for content may be received. A second plurality of content items associated with a plurality of rankings may be selected from a plurality of content items based upon a plurality of bid values. A quantity of content items of the second plurality of content items may be greater than a quantity of content items associated with the request for content. One or more ghost content items associated with one or more rankings of the plurality of rankings may be identified. A ghost impression indicator associated with a ghost content item of the one or more ghost content items may be stored based upon a determination that a ranking, of the one or more rankings, associated with the ghost content item matches a second ranking of a presented content item.

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Mountain View, CA, United States of America

Milena Petrova Krasteva