arXiv:2410.12825q-fin.GNcs.LG2024-10中稿 · RecTemp @ RecSys 2…被引 2

用同步编码提升多渠道金融交互意图预测准确率

TIMeSynC: Temporal Intent Modelling with Synchronized Context Encodings for Financial Service Applications

  • 设计同步上下文编码的编码器-解码器结构,融合多通道时序数据
  • 在真实金融场景中,意图预测准确率显著优于传统表格方法
  • 适合处理跨设备、异步采样、动静态混合的复杂用户行为数据

用户通过移动应用、网页平台、客服中心和实体网点等多种渠道与金融服务公司互动,这些交互在不同领域以异构的时间分辨率被记录。将多渠道数据整合并编码,可构建客户旅程的完整表征,用于精准意图预测,这需要序列学习方案。目前,基于NMT的Transformer通过编码上下文并解码下一最佳动作,在建模长程依赖方面表现优异。然而,在编码器-解码器Transformer架构中融合多域序列进行意图预测仍面临三大挑战:a) 不同采样率序列的对齐;b) 多变量、多域序列中的时间动态建模;c) 动态与静态序列的融合。本文提出一种编码器-解码器Transformer模型,解决上述问题,实现金融服务业中上下文与序列化意图预测。实验表明,该方法在真实数据上显著优于现有表格方法。

原文摘要 · Abstract (English)

Users engage with financial services companies through multiple channels, often interacting with mobile applications, web platforms, call centers, and physical locations to service their accounts. The resulting interactions are recorded at heterogeneous temporal resolutions across these domains. This multi-channel data can be combined and encoded to create a comprehensive representation of the customer's journey for accurate intent prediction. This demands sequential learning solutions. NMT transformers achieve state-of-the-art sequential representation learning by encoding context and decoding for the next best action to represent long-range dependencies. However, three major challenges exist while combining multi-domain sequences within an encoder-decoder transformers architecture for intent prediction applications: a) aligning sequences with different sampling rates b) learning temporal dynamics across multi-variate, multi-domain sequences c) combining dynamic and static sequences. We propose an encoder-decoder transformer model to address these challenges for contextual and sequential intent prediction in financial servicing applications. Our experiments show significant improvement over the existing tabular method.

意图预测多模态金融应用Transformer

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