arXiv:2506.12452cs.CLcs.AI2025-06

让金融关系抽取模型关注情感,提升准确率。

A Pluggable Multi-Task Learning Framework for Sentiment-Aware Financial Relation Extraction

  • 插入情感标记,让模型同时学习语义和情感信息。
  • 在多个主流模型上测试,均显著提升性能。
  • 适合做金融文本分析、情感敏感型关系抽取的研究者。

关系抽取(RE)旨在从给定实体对中提取文本的语义关系,已取得显著进展。然而,在不同领域中,RE任务会受多种因素影响。例如,在金融领域,情感会影响抽取结果,但现有模型普遍忽略此因素。为此,本文提出一种情感感知的可插拔多任务学习框架(SSDP-SEM),通过引入辅助的情感感知(ASP)任务来增强金融关系抽取。具体地,先用情感模型生成详细情感标记并插入文本实例,再让ASP任务通过预测情感标记位置,结合情感信息与最短依存路径(SDP)的句法特征,实现对细微情感线索的捕捉。此外,采用情感注意力信息瓶颈正则化方法调控推理过程。实验将该辅助任务集成到多个主流框架中,结果表明大多数基线模型均获益,性能显著提升,验证了情感在金融关系抽取中的关键作用。

原文摘要 · Abstract (English)

Relation Extraction (RE) aims to extract semantic relationships in texts from given entity pairs, and has achieved significant improvements. However, in different domains, the RE task can be influenced by various factors. For example, in the financial domain, sentiment can affect RE results, yet this factor has been overlooked by modern RE models. To address this gap, this paper proposes a Sentiment-aware-SDP-Enhanced-Module (SSDP-SEM), a multi-task learning approach for enhancing financial RE. Specifically, SSDP-SEM integrates the RE models with a pluggable auxiliary sentiment perception (ASP) task, enabling the RE models to concurrently navigate their attention weights with the text's sentiment. We first generate detailed sentiment tokens through a sentiment model and insert these tokens into an instance. Then, the ASP task focuses on capturing nuanced sentiment information through predicting the sentiment token positions, combining both sentiment insights and the Shortest Dependency Path (SDP) of syntactic information. Moreover, this work employs a sentiment attention information bottleneck regularization method to regulate the reasoning process. Our experiment integrates this auxiliary task with several prevalent frameworks, and the results demonstrate that most previous models benefit from the auxiliary task, thereby achieving better results. These findings highlight the importance of effectively leveraging sentiment in the financial RE task.

关系抽取情感分析金融NLP

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