2022

Personalized Prompt for Sequential Recommendation

Wu, Yiqing, Xie, Ruobing, Zhu, Yongchun et al.

Understand

Pre-training models have shown their power in sequential recommendation.

  • Recently, prompt has been widely explored and verified for tuning in NLP pre-training, which could help to more effectively and efficiently extract useful knowledge from pre-training models for downstream tasks, especially in cold-start scenarios.
  • However, it is challenging to bring prompt-tuning from NLP to recommendation, since the tokens in recommendation (i.e., items) do not have explicit explainable semantics, and the sequence modeling should be personalized.
  • In this work, we first introduces prompt to recommendation and propose a novel Personalized prompt-based recommendation (PPR) framework for cold-start recommendation.

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