Fixed problems with ad display.

修正广告显示问题。

youdao

With AD rates changing all the time and with so many different AD display choices, the task of optimization is too much to handle by one human person.

与专案利率变化的所有的时间和这么多不同的广告显示的选择，任务的优化是太多，处理一人。

youdao

Though you might have a single display AD campaign, you can serve it by multiple means of targeting to increase your chances for response.

虽然你可能已经有一个很简单的显示广告活动，但是你还是可以通过各种定位方式，增加广告活动的回应机会。

youdao

Programmatic buying has brought down prices in the ad market for online display ad, but there is a glut of available space there.

WSJ: Auction System Helps Place Digital Outdoor Ads

Google already takes in more than half of the mobile ad dollars spent in the U.S. And Facebook plans to move aggressively into the mobile display ad market.

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Based on that finding, one might predict that the bank should increase its display ad budget.

FORBES: Search vs. Display Advertising: Which Promises More Bang for the Buck?