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causal inference 1deep learning 1e-commerce 1offline evaluation 1recommendation systems 1

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cs.IR2026

Deep-learning Causal Retrieval Optimization for Efficient e-commerce Distribution in Pinterest

Junpeng Hou, XianXing Zhang, Sai Xiao +6

The paper presents a deep learning system that decides when to trigger shopping recommendations in Pinterest, using causal inference to reduce unnecessary triggers while maintainin…

cs.IR2025

ActionPiece: Contextually Tokenizing Action Sequences for Generative Recommendation

Yupeng Hou, Jianmo Ni, Zhankui He +5

Generative recommendation (GR) is an emerging paradigm where user actions are tokenized into discrete token patterns and autoregressively generated as predictions. However, existin…