APG: Adaptive Parameter Generation Network for Click-Through Rate Prediction

In many web applications, deep learning-based CTR prediction models (deep CTR models for short) are widely adopted. Traditional deep CTR models learn patterns in a static manner, i. e. , the network parameters are the same across all the instances. However, such a manner can hardly characterize each of the instances which may have different underlying distributions. It actually limits the representation power of deep CTR models, leading to sub-optimal results. In this paper, we propose an efficient, effective, and universal module, named as Adaptive Parameter Generation network (APG), which can dynamically generate parameters for deep CTR models on-the-fly based on different instances. Extensive experimental evaluation results show that APG can be applied to a variety of deep CTR models and significantly improve their performance. Meanwhile, APG can reduce the time cost by 38. 7\% and memory usage by 96. 6\% compared to a regular deep CTR model. We have deployed APG in the industrial sponsored search system and achieved 3\% CTR gain and 1\% RPM gain respectively.

Authors

• Bencheng Yan
• Pengjie Wang Dalian Minzu University
• Kai Zhang
• Feng Li
• Hongbo Deng
• Jian Xu
• Bo Zheng Taobao & Tmall Group of Alibaba

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