Han Zhang, Yazhou Zhang, Xinyu Wang, Lei Zhang, Lixia Ji
{"title":"An interactive multi-task ESG classification method for Chinese financial texts","authors":"Han Zhang, Yazhou Zhang, Xinyu Wang, Lei Zhang, Lixia Ji","doi":"10.1007/s10489-024-06068-8","DOIUrl":null,"url":null,"abstract":"<div><p>In view of the problems existing in the ESG classification task of Chinese financial texts, such as feature loss caused by excessively long texts, this paper proposes an interactive multi-task model AmultiESG for ESG classification of Chinese financial texts. The model divides Chinese financial text ESG classification and financial sentiment dictionary expansion into primary and secondary tasks. First, BiLSTM model is used to learn the original representation of the text. Then, in the secondary task, the attention mechanism and full connection layers are combined with the domain dictionary to realize the extraction of emotional words. In the main task, in order to prevent feature loss due to the excessively long texts, we process the text again and divide it into blocks according to the period. Meanwhile, we learned new feature representation of the text by combining text label representation, text block representation, BiLSTM output features and domain dictionary features. And we introduce an interactive information transfer mechanism to iteratively improve the predicted results of the two tasks and strengthen the association between them. It has been experimentally demonstrated that the proposed method shows superior performance compared to other baselines for the ESG classification task of Chinese financial text, especially for long-text classification tasks.</p></div>","PeriodicalId":8041,"journal":{"name":"Applied Intelligence","volume":"55 2","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Intelligence","FirstCategoryId":"94","ListUrlMain":"https://link.springer.com/article/10.1007/s10489-024-06068-8","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE","Score":null,"Total":0}
引用次数: 0
Abstract
In view of the problems existing in the ESG classification task of Chinese financial texts, such as feature loss caused by excessively long texts, this paper proposes an interactive multi-task model AmultiESG for ESG classification of Chinese financial texts. The model divides Chinese financial text ESG classification and financial sentiment dictionary expansion into primary and secondary tasks. First, BiLSTM model is used to learn the original representation of the text. Then, in the secondary task, the attention mechanism and full connection layers are combined with the domain dictionary to realize the extraction of emotional words. In the main task, in order to prevent feature loss due to the excessively long texts, we process the text again and divide it into blocks according to the period. Meanwhile, we learned new feature representation of the text by combining text label representation, text block representation, BiLSTM output features and domain dictionary features. And we introduce an interactive information transfer mechanism to iteratively improve the predicted results of the two tasks and strengthen the association between them. It has been experimentally demonstrated that the proposed method shows superior performance compared to other baselines for the ESG classification task of Chinese financial text, especially for long-text classification tasks.
期刊介绍:
With a focus on research in artificial intelligence and neural networks, this journal addresses issues involving solutions of real-life manufacturing, defense, management, government and industrial problems which are too complex to be solved through conventional approaches and require the simulation of intelligent thought processes, heuristics, applications of knowledge, and distributed and parallel processing. The integration of these multiple approaches in solving complex problems is of particular importance.
The journal presents new and original research and technological developments, addressing real and complex issues applicable to difficult problems. It provides a medium for exchanging scientific research and technological achievements accomplished by the international community.