MeFiNet: Modeling multi-semantic convolution-based feature interactions for CTR prediction

Author:

Yan Cairong12,Li Xiaoke1,Tao Ran1,Zhang Zhaohui12,Wan Yongquan3

Affiliation:

1. School of Computer Science and Technology, Donghua University, Shanghai, China

2. Engineering Research Center of Digitalized Textile and Fashion Technology, Ministry of Education, Shanghai, China

3. School of Information Technology, Shanghai Jian Qiao University, Shanghai, China

Abstract

Extracting more information from feature interactions is essential to improve click-through rate (CTR) prediction accuracy. Although deep learning technology can help capture high-order feature interactions, the combination of features lacks interpretability. In this paper, we propose a multi-semantic feature interaction learning network (MeFiNet), which utilizes convolution operations to map feature interactions to multi-semantic spaces to improve their expressive ability and uses an improved Squeeze & Excitation method based on SENet to learn the importance of these interactions in different semantic spaces. The Squeeze operation helps to obtain the global importance distribution of semantic spaces, and the Excitation operation helps to dynamically re-assign the weights of semantic features so that both semantic diversity and feature diversity are considered in the model. The generated multi-semantic feature interactions are concatenated with the original feature embeddings and input into a deep learning network. Experiments on three public datasets demonstrate the effectiveness of the proposed model. Compared with state-of-the-art methods, the model achieves excellent performance (+0.18% in AUC and -0.34% in LogLoss VS DeepFM; +0.19% in AUC and -0.33% in LogLoss VS FiBiNet).

Publisher

IOS Press

Subject

Artificial Intelligence,Computer Vision and Pattern Recognition,Theoretical Computer Science

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