Hua Chen


2024

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ESG-GPT:GPT4-Based Few-Shot Prompt Learning for Multi-lingual ESG News Text Classification
Ke Tian | Hua Chen
Proceedings of the Joint Workshop of the 7th Financial Technology and Natural Language Processing, the 5th Knowledge Discovery from Unstructured Data in Financial Services, and the 4th Workshop on Economics and Natural Language Processing @ LREC-COLING 2024

Environmental, Social, and Governance (ESG) factors for company assessment have gained great attention from finance investors to identify companies’ risks and growth opportunities. ESG Text data regarding the company like sustainable reports, media news text, and social media text are important data sources for ESG analysis like ESG factors classification. Recently, FinNLP has proposed several ESG-related tasks. One of the tasks is Multi-Lingual ESG Issue Identification 3(ML-ESG-3) which is to determine the duration or impact level of the impact of an event in the news article regarding the company. In this paper, we mainly discussed our team: KaKa’s solution to this ML-ESG-3 task. We proposed the GPT4 model based on few-shot prompt learning to predict the impact level or duration of the impact of multi-lingual ESG news for the company. The experiment result demonstrates that GPT4-based few-shot prompt learning achieved good performance in leaderboard quantitative evaluations of ML-ESG-3 tasks across different languages.

2022

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Automatic Term and Sentence Classification Via Augmented Term and Pre-trained language model in ESG Taxonomy texts
Ke Tian | Zepeng Zhang | Hua Chen
Proceedings of the Fourth Workshop on Financial Technology and Natural Language Processing (FinNLP)

In this paper, we present our solutions to the FinSim4 Shared Task which is co-located with the FinNLP workshop at IJCAI-2022. This new edition of FinSim4-ESG is extended to the “Environment, Social and Governance (ESG)” related issues in the financial domain. There are two sub-tasks in the FinSim4 shared task. The goal of sub-task1 is to develop a model to predict correctly a list of given terms from ESG taxonomy domain into the most relevant concepts. The aim of subtask2 is to design a system that can automatically classify the ESG Taxonomy text sentence into sustainable or unsustainable class. We have developed different classifiers to automatically classify the terms and sentences with augmented term and pre-trained language models: tf-idf vector, word2vec, Bert, Distill-Bert, Albert, Roberta. The result dashboard shows that our proposed methods yield a significant performance improvement compared to the baseline which ranked 1st in the subtask2 and 2rd of mean rank in the subtask1.

2020

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aiai at the FinSBD-2 Task: Sentence, list and Item Boundary Detection and Items classification of Financial Texts Using Data Augmentation and Attention
Ke Tian | Hua Chen | Jie Yang
Proceedings of the Second Workshop on Financial Technology and Natural Language Processing