Explicit Semantic Cross Feature Learning via Pre-trained Graph Neural Networks for CTR Prediction

• URL: http://arxiv.org/abs/2105.07752v1
• Date: Mon, 17 May 2021 11:56:04 GMT
• Title: Explicit Semantic Cross Feature Learning via Pre-trained Graph Neural Networks for CTR Prediction
• Authors: Feng Li, Bencheng Yan, Qingqing Long, Pengjie Wang, Wei Lin, Jian Xu and Bo Zheng
• Abstract summary: Cross features play an important role in click-through rate (CTR) prediction. Most of the existing methods adopt a DNN-based model to capture the cross features in an implicit manner. We propose Pre-trained Cross Feature learning Graph Neural Networks (PCF-GNN), a GNN based pre-trained model aiming at generating cross features in an explicit fashion.
• Score: 14.270296688394762
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Cross features play an important role in click-through rate (CTR) prediction. Most of the existing methods adopt a DNN-based model to capture the cross features in an implicit manner. These implicit methods may lead to a sub-optimized performance due to the limitation in explicit semantic modeling. Although traditional statistical explicit semantic cross features can address the problem in these implicit methods, it still suffers from some challenges, including lack of generalization and expensive memory cost. Few works focus on tackling these challenges. In this paper, we take the first step in learning the explicit semantic cross features and propose Pre-trained Cross Feature learning Graph Neural Networks (PCF-GNN), a GNN based pre-trained model aiming at generating cross features in an explicit fashion. Extensive experiments are conducted on both public and industrial datasets, where PCF-GNN shows competence in both performance and memory-efficiency in various tasks.

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