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Sentiment analysis (SA) aims to identify the sentiment expressed in a text, such as a product review. Given a review and the sentiment associated with it, this work formulates SA as a combination of two tasks: (1) a causal discovery task…

计算与语言 · 计算机科学 2024-10-29 Zhiheng Lyu , Zhijing Jin , Fernando Gonzalez , Rada Mihalcea , Bernhard Schölkopf , Mrinmaya Sachan

Introducing Entity-Aspect Sentiment Triplet Extraction (EASTE), a novel Aspect-Based Sentiment Analysis (ABSA) task which extends Target-Aspect-Sentiment Detection (TASD) by separating aspect categories (e.g., food#quality) into pre-defined…

计算与语言 · 计算机科学 2024-07-08 Vorakit Vorakitphan , Milos Basic , Guilhaume Leroy Meline

In this study, we integrate sentiment analysis within a financial framework by leveraging FinBERT, a fine-tuned BERT model specialized for financial text, to construct an advanced deep learning model based on Long Short-Term Memory (LSTM)…

统计金融 · 定量金融 2025-06-12 Tingsong Jiang , Qingyun Zeng

Extraction of financial and economic events from text has previously been done mostly using rule-based methods, with more recent works employing machine learning techniques. This work is in line with this latter approach, leveraging…

We propose an Economic Lexicon (EL) specifically designed for textual applications in economics. We construct the dictionary with two important characteristics: 1) to have a wide coverage of terms used in documents discussing economic…

计算工程、金融与科学 · 计算机科学 2024-11-22 Luca Barbaglia , Sergio Consoli , Sebastiano Manzan , Luca Tiozzo Pezzoli , Elisa Tosetti

The paper considers the possibility to fine-tune Llama 2 GPT large language model (LLM) for the multitask analysis of financial news. For fine-tuning, the PEFT/LoRA based approach was used. In the study, the model was fine-tuned for the…

计算与语言 · 计算机科学 2023-09-12 Bohdan M. Pavlyshenko

Financial sentiment analysis (FSA) presents unique challenges to LLMs that surpass those in typical sentiment analysis due to the nuanced language used in financial contexts. The prowess of these models is often undermined by the inherent…

计算与语言 · 计算机科学 2025-05-14 A M Muntasir Rahman , Ajim Uddin , Guiling "Grace" Wang

Media outlets are becoming more partisan and polarized nowadays. In this paper, we identify media bias at the sentence level, and pinpoint bias sentences that intend to sway readers' opinions. As bias sentences are often expressed in a…

计算与语言 · 计算机科学 2024-04-03 Yuanyuan Lei , Ruihong Huang

Social media platforms and online forums generate rapid and increasing amount of textual data. Businesses, government agencies, and media organizations seek to perform sentiment analysis on this rich text data. The results of these…

计算与语言 · 计算机科学 2020-09-29 Muhammad Haroon Shakeel , Turki Alghamidi , Safi Faizullah , Imdadullah Khan

Aspect-based sentiment analysis (ASBA) is a refined approach to sentiment analysis that aims to extract and classify sentiments based on specific aspects or features of a product, service, or entity. Unlike traditional sentiment analysis,…

计算与语言 · 计算机科学 2025-01-16 Karukriti Kaushik Ghosh , Chiranjib Sur

Emotion detection from the text is an important and challenging problem in text analytics. The opinion-mining experts are focusing on the development of emotion detection applications as they have received considerable attention of online…

Emotion classification is often formulated as the task to categorize texts into a predefined set of emotion classes. So far, this task has been the recognition of the emotion of writers and readers, as well as that of entities mentioned in…

计算与语言 · 计算机科学 2022-04-12 Enrica Troiano , Laura Oberländer , Maximilian Wegge , Roman Klinger

Product reviews often contain a large number of implicit aspects and object-attribute co-existence cases. Unfortunately, many existing studies in Aspect-Based Sentiment Analysis (ABSA) have overlooked this issue, which can make it difficult…

计算与语言 · 计算机科学 2023-11-29 Dan Ma , Jun Xu , Zongyu Wang , Xuezhi Cao , Yunsen Xian

Aspect-based Sentiment Analysis (ABSA) is a fine-grained sentiment analysis task which involves four elements from user-generated texts: aspect term, aspect category, opinion term, and sentiment polarity. Most computational approaches focus…

The emergence and rapid progress of the Internet have brought ever-increasing impact on financial domain. How to rapidly and accurately mine the key information from the massive negative financial texts has become one of the key issues for…

计算与语言 · 计算机科学 2020-01-16 Lingyun Zhao , Lin Li , Xinhao Zheng

Financial sentiment analysis is critical for valuation and investment decision-making. Traditional NLP models, however, are limited by their parameter size and the scope of their training datasets, which hampers their generalization…

计算与语言 · 计算机科学 2023-11-07 Boyu Zhang , Hongyang Yang , Tianyu Zhou , Ali Babar , Xiao-Yang Liu

This paper presents a novel approach for explainability in financial analysis by deriving financially-explainable statistical relationships through aspect-based sentiment analysis, Pearson correlation, Granger causality & uncertainty…

计算与语言 · 计算机科学 2024-10-16 Keane Ong , Wihan van der Heever , Ranjan Satapathy , Erik Cambria , Gianmarco Mengaldo

Understanding sentiment in multimodal conversations is a complex yet crucial challenge toward building emotionally intelligent AI systems. The Multimodal Conversational Aspect-based Sentiment Analysis (MCABSA) Challenge invited participants…

计算与语言 · 计算机科学 2025-12-30 Zhiqiang Gao , Shihao Gao , Zixing Zhang , Yihao Guo , Hongyu Chen , Jing Han

We introduce PerSenT, a dataset of crowd-sourced annotations of the sentiment expressed by the authors towards the main entities in news articles. The dataset also includes paragraph-level sentiment annotations to provide more fine-grained…

计算与语言 · 计算机科学 2023-01-18 Mohaddeseh Bastan , Mahnaz Koupaee , Youngseo Son , Richard Sicoli , Niranjan Balasubramanian

Targeted sentiment analysis (TSA), also known as aspect based sentiment analysis (ABSA), aims at detecting fine-grained sentiment polarity towards targets in a given opinion document. Due to the lack of labeled datasets and effective…

计算与语言 · 计算机科学 2019-05-10 Jiaxin Pei , Aixin Sun , Chenliang Li