So then I wondered, who is the AD targeting, who is the buyer?

接着我又想，这则广告的对象是什么人，买主是谁？

youdao

If, as a developer, you know these things, you can improve the user experience and content through AD targeting, personalization, and recommendation.

如果你是一名开发者，知道这些以后，你就可以通过广告定位、人性化以及推荐机制改善用户体验和内容。

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

But smaller screen sizes than PCs, less sophisticated ad targeting and wariness by advertisers is holding down ad rates or spending on mobile devices.

WSJ: Twitter's Mobile Ads Begin to Click

Using that knowledge, Fab is targeting its TV ad buys to find the same demographics that it has been targeting through Facebook.

FORBES: Fab.com Runs $8M TV Ad Campaign, Expects $25M In 2012 Facebook Ads

How much the ad targeting has helped Facebook's business is unclear, since the Menlo Park, Calif.

WSJ: Buy Signal: Facebook Widens Data Targeting