A Sublinear, Massive-­scale Look-­alike Audience Extension System

author: Qiang Ma, Yahoo! Inc.
published: Oct. 12, 2016,   recorded: August 2016,   views: 1106

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Look-alike audience extension is a practically effective way to customize high-performance audience in on-line advertising. With look-alike audience extension system, any advertiser can easily generate a set of customized audience by just providing a list of existing customers without knowing the detailed targetable attributes in a sophisticated advertising system. In this paper, we present our newly developed graph-based look-alike system in Yahoo! advertising platform which provides look-alike audiences for thousands of campaigns. Extensive experiments have been conducted to compare our look-alike model with three other existing look-alike systems using billions of users and millions of user features. The experiment results show that our developed graph-based method with nearest-neighbor filtering outperforms other methods in comparison by more than 50% regarding conversion rate in app-install ad campaigns.

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