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This paper presents our system built for the WASSA-2024 Cross-lingual Emotion Detection Shared Task. The task consists of two subtasks: first, to assess an emotion label from six possible classes for a given tweet in one of five languages,…

计算与语言 · 计算机科学 2025-08-13 Jakub Šmíd , Pavel Přibáň , Pavel Král

Automatic identification of emotions expressed in Twitter data has a wide range of applications. We create a well-balanced dataset by adding a neutral class to a benchmark dataset consisting of four emotions: fear, sadness, joy, and anger.…

计算与语言 · 计算机科学 2022-08-10 Ionuţ-Alexandru Albu , Stelian Spînu

Time series forecasting is a key tool in financial markets, helping to predict asset prices and guide investment decisions. In highly volatile markets, such as cryptocurrencies like Bitcoin (BTC) and Ethereum (ETH), forecasting becomes more…

交易与市场微观结构 · 定量金融 2026-02-17 Mabsur Fatin Bin Hossain , Lubna Zahan Lamia , Md Mahmudur Rahman , Md Mosaddek Khan

A sentiment analysis system powered by machine learning was created in this study to improve real-time social network public opinion monitoring. For sophisticated sentiment identification, the suggested approach combines cutting-edge…

计算与语言 · 计算机科学 2025-02-25 Arsen Tolebay Nurlanuly

This paper covers the two approaches for sentiment analysis: i) lexicon based method; ii) machine learning method. We describe several techniques to implement these approaches and discuss how they can be adopted for sentiment classification…

计算与语言 · 计算机科学 2019-02-19 Olga Kolchyna , Tharsis T. P. Souza , Philip Treleaven , Tomaso Aste

The animated Graphical Interchange Format (GIF) images have been widely used on social media as an intuitive way of expression emotion. Given their expressiveness, GIFs offer a more nuanced and precise way to convey emotions. In this paper,…

信息检索 · 计算机科学 2020-08-17 Ye Bi , Shuo Wang , Zhongrui Fan

In recent years, the use of emojis in social media has increased dramatically, making them an important element in understanding online communication. However, predicting the meaning of emojis in a given text is a challenging task due to…

计算与语言 · 计算机科学 2023-08-29 Muhammad Osama Nusrat , Zeeshan Habib , Mehreen Alam , Saad Ahmed Jamal

Newsletters and social networks can reflect the opinion about the market and specific stocks from the perspective of analysts and the general public on products and/or services provided by a company. Therefore, sentiment analysis of these…

计算与语言 · 计算机科学 2021-12-28 Elvys Linhares Pontes , Mohamed Benjannet

This paper offers a thorough examination of the univariate predictability in cryptocurrency time-series. By exploiting a combination of complexity measure and model predictions we explore the cryptocurrencies time-series forecasting task…

统计金融 · 定量金融 2025-02-14 Francesco Puoti , Fabrizio Pittorino , Manuel Roveri

Bitcoin, as one of the most popular cryptocurrency, is recently attracting much attention of investors. Bitcoin price prediction task is consequently a rising academic topic for providing valuable insights and suggestions. Existing bitcoin…

统计金融 · 定量金融 2020-08-25 Xiao Li , Weili Wu

Twitter sentiment analysis, which often focuses on predicting the polarity of tweets, has attracted increasing attention over the last years, in particular with the rise of deep learning (DL). In this paper, we propose a new task:…

This study presents a thorough examination of various Generative Pretrained Transformer (GPT) methodologies in sentiment analysis, specifically in the context of Task 4 on the SemEval 2017 dataset. Three primary strategies are employed: 1)…

计算与语言 · 计算机科学 2023-07-25 Kiana Kheiri , Hamid Karimi

Trends and opinion mining in social media increasingly focus on novel interactions involving visual media, like images and short videos, in addition to text. In this work, we tackle the problem of visual sentiment analysis of social media…

计算机视觉与模式识别 · 计算机科学 2023-05-01 Alessio Serra , Fabio Carrara , Maurizio Tesconi , Fabrizio Falchi

Cryptocurrency markets are highly volatile and influenced by both price trends and market sentiment, making effective portfolio management challenging. This paper proposes a dynamic cryptocurrency portfolio strategy that integrates…

计算工程、金融与科学 · 计算机科学 2026-03-05 Qizhao Chen

It is important for machines to interpret human emotions properly for better human-machine communications, as emotion is an essential part of human-to-human communications. One aspect of emotion is reflected in the language we use. How to…

计算与语言 · 计算机科学 2018-08-23 Ji Ho Park

NLP tasks are often limited by scarcity of manually annotated data. In social media sentiment analysis and related tasks, researchers have therefore used binarized emoticons and specific hashtags as forms of distant supervision. Our paper…

机器学习 · 统计学 2019-11-19 Bjarke Felbo , Alan Mislove , Anders Søgaard , Iyad Rahwan , Sune Lehmann

Accurately predicting short-term stock price movement remains a challenging task due to the market's inherent volatility and sensitivity to investor sentiment. This paper discusses a deep learning framework that integrates emotion features…

机器学习 · 计算机科学 2025-10-07 An Vuong , Susan Gauch

At present, cryptocurrencies have become a global phenomenon in financial sectors as it is one of the most traded financial instruments worldwide. Cryptocurrency is not only one of the most complicated and abstruse fields among financial…

统计金融 · 定量金融 2020-05-20 Reaz Chowdhury , M. Arifur Rahman , M. Sohel Rahman , M. R. C. Mahdy

What are the limits of automated Twitter sentiment classification? We analyze a large set of manually labeled tweets in different languages, use them as training data, and construct automated classification models. It turns out that the…

计算与语言 · 计算机科学 2021-08-31 Igor Mozetic , Miha Grcar , Jasmina Smailovic

Rapid increase in the volume of sentiment rich social media on the web has resulted in an increased interest among researchers regarding Sentimental Analysis and opinion mining. However, with so much social media available on the web,…

信息检索 · 计算机科学 2014-10-28 Chetan Kaushik , Atul Mishra