Title
MISS: Multi-Interest Self-Supervised Learning Framework for Click-Through Rate Prediction
Abstract
CTR prediction is essential for modern recommender systems. Ranging from early factorization machines to deep learning based models in recent years, existing CTR methods focus on capturing useful feature interactions or mining important behavior patterns. Despite the effectiveness, we argue that these methods suffer from the risk of label sparsity (i.e., the user-item interactions are highly sparse with respect to the feature space), label noise (i.e., the collected user-item interactions are usually noisy), and the underuse of domain knowledge (i.e., the pairwise correlations between samples). To address these challenging problems, we propose a novel Multi-Interest Self-Supervised learning (MISS) framework which enhances the feature embeddings with interest-level self-supervision signals. With the help of two novel CNN-based multi-interest extractors, self-supervision signals are discovered with full considerations of different interest representations (point-wise and union-wise), interest dependencies (short-range and long-range), and interest correlations (inter-item and intra-item). Based on that, contrastive learning losses are further applied to the augmented views of interest representations, which effectively improves the feature representation learning. Furthermore, our proposed MISS frame-work can be used as an “plug-in” component with existing CTR prediction models and further boost their performances. Extensive experiments on three large-scale datasets show that MISS significantly outperforms the state-of-the-art models, by up to 13.55% in AUC, and also enjoys good compatibility with representative deep CTR models.
Year
DOI
Venue
2022
10.1109/ICDE53745.2022.00059
2022 IEEE 38th International Conference on Data Engineering (ICDE)
Keywords
DocType
ISSN
CTR Prediction,Multi-interest,Self-Supervised Learning
Conference
1063-6382
ISBN
Citations 
PageRank 
978-1-6654-0884-4
0
0.34
References 
Authors
24
9
Name
Order
Citations
PageRank
Wei Guo101.01
Can Zhang200.34
Zhicheng He301.35
Jiarui Qin400.68
Guo Huifeng513415.44
Bo Chen600.34
Ruiming Tang712519.25
Xiuqiang He831239.21
Rui Zhang9120867.26