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This study conducted a comprehensive review of 71 papers published between 2000 and 2021 that employed various measures of investor sentiment to model returns. The analysis indicates that higher complexity of sentiment measures and models…

投资组合管理 · 定量金融 2024-11-21 Szymon Lis

Cross-lingual aspect-based sentiment analysis (ABSA) involves detailed sentiment analysis in a target language by transferring knowledge from a source language with available annotated data. Most existing methods depend heavily on often…

计算与语言 · 计算机科学 2025-08-14 Jakub Šmíd , Pavel Přibáň , Pavel Král

Aspect category sentiment analysis (ACSA) has achieved remarkable progress with large language models (LLMs), yet existing approaches primarily emphasize sentiment polarity while overlooking the underlying emotional dimensions that shape…

计算与语言 · 计算机科学 2025-11-25 Yaping Chai , Haoran Xie , Joe S. Qin

Aspect-Based Sentiment Analysis (ABSA) studies the consumer opinion on the market products. It involves examining the type of sentiments as well as sentiment targets expressed in product reviews. Analyzing the language used in a review is a…

计算与语言 · 计算机科学 2021-03-02 Akbar Karimi , Leonardo Rossi , Andrea Prati

Implicit sentiment analysis aims to uncover emotions that are subtly expressed, often obscured by ambiguity and figurative language. To accomplish this task, large language models and multi-step reasoning are needed to identify those…

计算与语言 · 计算机科学 2025-03-11 Liwei Yang , Xinying Wang , Xiaotang Zhou , Zhengchao Wu , Ningning Tan

Aspect-based sentiment analysis (ABSA) involves identifying sentiment towards specific aspect terms in a sentence and allows us to uncover nuanced perspectives and attitudes on particular aspects of a product, service, or topic. However,…

计算与语言 · 计算机科学 2024-09-18 Lingling Xu , Haoran Xie , S. Joe Qin , Fu Lee Wang , Xiaohui Tao

Many financial and economic variables, including financial returns, exhibit nonlinear dependence, heterogeneity and heavy-tailedness. These properties may make problematic the analysis of (non-)efficiency and volatility clustering in…

计量经济学 · 经济学 2023-12-01 Rustam Ibragimov , Rasmus Pedersen , Anton Skrobotov

Extraction of sentiment signals from news text, stock message boards, and business reports, for stock movement prediction, has been a rising field of interest in finance. Building upon past literature, the most recent works attempt to…

计算与语言 · 计算机科学 2023-01-26 Guijin Son , Hanwool Lee , Nahyeon Kang , Moonjeong Hahm

Recent recommender systems aim to provide not only accurate recommendations but also explanations that help users understand them better. However, most existing explainable recommendations only consider the importance of content in reviews,…

信息检索 · 计算机科学 2024-08-06 Wenxin Zhao , Peng Zhang , Hansu Gu , Dongsheng Li , Tun Lu , Ning Gu

Aspect Sentiment Triplet Extraction (ASTE) aims to extract aspect term, sentiment and opinion term triplets from sentences and tries to provide a complete solution for aspect-based sentiment analysis (ABSA). However, some triplets extracted…

计算与语言 · 计算机科学 2021-08-31 Yuncong Li , Fang Wang , Wenjun Zhang , Sheng-hua Zhong , Cunxiang Yin , Yancheng He

This paper describes our deep learning-based approach to multilingual aspect-based sentiment analysis as part of SemEval 2016 Task 5. We use a convolutional neural network (CNN) for both aspect extraction and aspect-based sentiment…

计算与语言 · 计算机科学 2016-09-23 Sebastian Ruder , Parsa Ghaffari , John G. Breslin

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

Recently, aspect sentiment quad prediction has received widespread attention in the field of aspect-based sentiment analysis. Existing studies extract quadruplets via pre-trained generative language models to paraphrase the original…

计算与语言 · 计算机科学 2023-06-06 Mengting Hu , Yinhao Bai , Yike Wu , Zhen Zhang , Liqi Zhang , Hang Gao , Shiwan Zhao , Minlie Huang

Aspect level sentiment classification is a fine-grained sentiment analysis task. To detect the sentiment towards a particular aspect in a sentence, previous studies have developed various attention-based methods for generating…

计算与语言 · 计算机科学 2019-08-22 Mengting Hu , Shiwan Zhao , Li Zhang , Keke Cai , Zhong Su , Renhong Cheng , Xiaowei Shen

Aspect-based Sentiment Analysis (ABSA) is a critical task in Natural Language Processing (NLP) that focuses on extracting sentiments related to specific aspects within a text, offering deep insights into customer opinions. Traditional…

In the context of sentiment analysis, there has been growing interest in performing a finer granularity analysis focusing on the specific aspects of the entities being evaluated. This is the goal of Aspect-Based Sentiment Analysis (ABSA)…

计算与语言 · 计算机科学 2020-08-26 Danny Suarez Vargas , Lucas R. C. Pessutto , Viviane Pereira Moreira

Reject Inference (RI) methods aim to address sample bias by inferring missing repayment data for rejected credit applicants. Traditional approaches often assume that the behavior of rejected clients can be extrapolated from accepted…

机器学习 · 计算机科学 2025-10-16 Athyrson Machado Ribeiro , Marcos Medeiros Raimundo

Aspect Sentiment Triplet Extraction (ASTE) aims to extract aspect term (aspect), sentiment and opinion term (opinion) triplets from sentences and can tell a complete story, i.e., the discussed aspect, the sentiment toward the aspect, and…

计算与语言 · 计算机科学 2021-10-15 Fang Wang , Yuncong Li , Sheng-hua Zhong , Cunxiang Yin , Yancheng He

Aspect-based sentiment analysis (ABSA) is a crucial task in information extraction and sentiment analysis, aiming to identify aspects with associated sentiment elements in text. However, existing ABSA datasets are predominantly…

计算与语言 · 计算机科学 2025-09-10 Chengyan Wu , Bolei Ma , Yihong Liu , Zheyu Zhang , Ningyuan Deng , Yanshu Li , Baolan Chen , Yi Zhang , Yun Xue , Barbara Plank

Sentiment signals derived from sparse news are commonly used in financial analysis and technology monitoring, yet transforming raw article-level observations into reliable temporal series remains a largely unsolved engineering problem.…

机器学习 · 计算机科学 2026-03-26 Stefania Stan , Marzio Lunghi , Vito Vargetto , Claudio Ricci , Rolands Repetto , Brayden Leo , Shao-Hong Gan