用NLP技术分析金融文本,提升资产定价与风险预测能力
Integrating Natural Language Processing Techniques of Text Mining Into Financial System: Applications and Limitations
- 融合概率模型与向量空间模型处理金融文本与数值数据
- LSTM和双向编码器是主流信息分类算法,应用于资产定价等环节
- 适合从事金融文本分析的研究者参考,关注数据质量与模型可解释性
2018-2023年间,金融系统越来越多地应用自然语言处理技术以增强数据处理与洞察提取能力。本文综述了文本挖掘在资产定价、公司金融、衍生品、风险管理及公共财政等领域的应用,发现多数研究结合了概率模型与向量空间模型,并融合文本数据与数值数据。信息分类是最常用的信息处理技术,长短期记忆网络(LSTM)与双向编码器模型(BERT)为最常用算法。研究指出,当前重点集中在资产定价领域,且已有新算法被提出。文章从工程角度提出金融文本分析路径,并强调需解决文本质量、上下文适应性与模型可解释性等挑战,以推动先进NLP技术在金融分析与预测中的集成。
原文摘要 · Abstract (English)
The financial sector, a pivotal force in economic development, increasingly uses the intelligent technologies such as natural language processing to enhance data processing and insight extraction. This research paper through a review process of the time span of 2018-2023 explores the use of text mining as natural language processing techniques in various components of the financial system including asset pricing, corporate finance, derivatives, risk management, and public finance and highlights the need to address the specific problems in the discussion section. We notice that most of the research materials combined probabilistic with vector-space models, and text-data with numerical ones. The most used technique regarding information processing is the information classification technique and the most used algorithms include the long-short term memory and bidirectional encoder models. The research noticed that new specific algorithms are developed and the focus of the financial system is mainly on asset pricing component. The research also proposes a path from engineering perspective for researchers who need to analyze financial text. The challenges regarding text mining perspective such as data quality, context-adaption and model interpretability need to be solved so to integrate advanced natural language processing models and techniques in enhancing financial analysis and prediction. Keywords: Financial System (FS), Natural Language Processing (NLP), Software and Text Engineering, Probabilistic, Vector-Space, Models, Techniques, TextData, Financial Analysis.
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