Papers › 1ˢᵗ Place Solution of WWW 2025 EReL@MIR Workshop Multimodal CTR Prediction Challenge

1ˢᵗ Place Solution of WWW 2025 EReL@MIR Workshop Multimodal CTR Prediction Challenge

6 May 2025arXiv:2505.03543archive 2025-07-28

Junwei Xu, Zehao Zhao, Xiaoyu Hu, Zhenjie Song

The WWW 2025 EReL@MIR Workshop Multimodal CTR Prediction Challenge focuses on effectively applying multimodal embedding features to improve click-through rate (CTR) prediction in recommender systems. This technical report presents our 1ˢᵗ place winning solution for Task 2, combining sequential modeling and feature interaction learning to effectively capture user-item interactions. For multimodal information integration, we simply append the frozen multimodal embeddings to each item embedding. Experiments on the challenge dataset demonstrate the effectiveness of our method, achieving superior performance with a 0.9839 AUC on the leaderboard, much higher than the baseline model. Code and configuration are available in our GitHub repository and the checkpoint of our model can be found in HuggingFace.

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Click-Through Rate PredictionRecommendation SystemsTask 2

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