论文标题
PCDF:用于赞助搜索广告服务的平行计算分布式框架
PCDF: A Parallel-Computing Distributed Framework for Sponsored Search Advertising Serving
论文作者
论文摘要
赞助搜索的传统在线广告系统遵循级联范式,分别取回,预先排名,排名。受到在线推理效率的严格要求的限制,在排名阶段中很难部署有用但计算密集的模块。此外,当前在行业中使用的排名模型假设用户点击仅依赖广告本身,这导致排名阶段忽略了有机搜索结果对预测广告(ADS)的影响。在这项工作中,我们提出了一个新颖的框架PCDF(并行计算的分布式框架),使计算成本将其分为三个部分,并与检索阶段同行部署在较模块中,并将其与排名广告的中间模块以及与外部项目重新排列的广告进行排名。与经典框架相比,我们的PCDF有效地减少了整体推断潜伏期。整个模块是端到端的离线培训,并适应在线学习范式。据我们所知,我们是第一个提出端到端解决方案,用于从系统框架方面对复杂CTR模型进行在线培训和部署。
Traditional online advertising systems for sponsored search follow a cascade paradigm with retrieval, pre-ranking,ranking, respectively. Constrained by strict requirements on online inference efficiency, it tend to be difficult to deploy useful but computationally intensive modules in the ranking stage. Moreover, ranking models currently used in the industry assume the user click only relies on the advertisements itself, which results in the ranking stage overlooking the impact of organic search results on the predicted advertisements (ads). In this work, we propose a novel framework PCDF(Parallel-Computing Distributed Framework), allowing to split the computation cost into three parts and to deploy them in the pre-module in parallel with the retrieval stage, the middle-module for ranking ads, and the post-module for re-ranking ads with external items. Our PCDF effectively reduces the overall inference latency compared with the classic framework. The whole module is end-to-end offline training and adapt for the online learning paradigm. To our knowledge, we are the first to propose an end-to-end solution for online training and deployment on complex CTR models from the system framework side.