arXiv:2508.11977cs.IRcs.AI2025-08被引 14

提出TBGRecall模型,提升电商推荐中生成式召回的效率与效果。

TBGRecall: A Generative Retrieval Model for E-commerce Recommendation Scenarios

  • 将用户会话分组为多会话序列,结合下一会话预测优化生成式召回
  • 在淘宝工业数据集上超越现有方法,展现明显的可扩展性规律
  • 适合追求高效生成式推荐的电商平台和研究者

推荐系统是现代电商中实现个性化体验的关键工具。尽管生成式模型在推荐系统中展现出潜力,但其依赖自回归生成机制,常受限于检索任务,因序列依赖性导致无法在单次请求中高效生成多个商品。为此,我们提出TBGRecall框架,融合下一会话预测(NSP),以增强电商场景下的生成式检索能力。该框架将输入样本划分为多会话序列,每个序列包含会话标记和一组商品标记,并引入针对生成式检索任务的多项优化。训练方面,采用有限历史数据预训练与随机部分增量训练相结合的策略,显著提升训练效率,强调数据时效性优于数据量。我们在公开基准和淘宝大规模工业数据集上进行了广泛实验,结果表明TBGRecall优于当前最优推荐方法,并表现出清晰的缩放规律。最终,NSP为电商生成式推荐系统提供了显著性能提升。

原文摘要 · Abstract (English)

Recommendation systems are essential tools in modern e-commerce, facilitating personalized user experiences by suggesting relevant products. Recent advancements in generative models have demonstrated potential in enhancing recommendation systems; however, these models often exhibit limitations in optimizing retrieval tasks, primarily due to their reliance on autoregressive generation mechanisms. Conventional approaches introduce sequential dependencies that impede efficient retrieval, as they are inherently unsuitable for generating multiple items without positional constraints within a single request session. To address these limitations, we propose TBGRecall, a framework integrating Next Session Prediction (NSP), designed to enhance generative retrieval models for e-commerce applications. Our framework reformulation involves partitioning input samples into multi-session sequences, where each sequence comprises a session token followed by a set of item tokens, and then further incorporate multiple optimizations tailored to the generative task in retrieval scenarios. In terms of training methodology, our pipeline integrates limited historical data pre-training with stochastic partial incremental training, significantly improving training efficiency and emphasizing the superiority of data recency over sheer data volume. Our extensive experiments, conducted on public benchmarks alongside a large-scale industrial dataset from TaoBao, show TBGRecall outperforms the state-of-the-art recommendation methods, and exhibits a clear scaling law trend. Ultimately, NSP represents a significant advancement in the effectiveness of generative recommendation systems for e-commerce applications.

生成式推荐电商推荐序列建模下一代检索

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