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Event prediction is the ability of anticipating future events, i.e., future real-world occurrences, and aims to support the user in deciding on actions that change future events towards a desired state. An event prediction method learns the…

人工智能 · 计算机科学 2025-07-10 Janik-Vasily Benzin , Stefanie Rinderle-Ma

Sentiment analysis possesses the potential of diverse applicability on digital platforms. Sentiment analysis extracts the polarity to understand the intensity and subjectivity in the text. This work uses a lexicon-based method to perform…

计算与语言 · 计算机科学 2024-09-20 Muhammad Raees , Samina Fazilat

Predicting investors reactions to financial and political news is important for the early detection of stock market jitters. Evidence from several recent studies suggests that online social media could improve prediction of stock market…

社会与信息网络 · 计算机科学 2017-09-20 Fani Tsapeli , Nikolaos Bezirgiannidis , Peter Tino , Mirco Musolesi

This study explores the intersection of fashion trends and social media sentiment through computational analysis of Twitter data using the T4SA (Twitter for Sentiment Analysis) dataset. By applying natural language processing and machine…

计算与语言 · 计算机科学 2025-05-02 Aayam Bansal , Agneya Tharun

Web 2.0 helps to expand the range and depth of conversation on many issues and facilitates the formation of online communities. Online communities draw various individuals together based on their common opinions on a core set of issues.…

社会与信息网络 · 计算机科学 2018-05-14 Amin Salehi , Mert Ozer , Hasan Davulcu

Sentiment analysis of online user generated content is important for many social media analytics tasks. Researchers have largely relied on textual sentiment analysis to develop systems to predict political elections, measure economic…

计算机视觉与模式识别 · 计算机科学 2015-09-22 Quanzeng You , Jiebo Luo , Hailin Jin , Jianchao Yang

We present a new machine learning and text information extraction approach to detection of cyber threat events in Twitter that are novel (previously non-extant) and developing (marked by significance with respect to similarity with a…

信息检索 · 计算机科学 2019-07-19 Avishek Bose , Vahid Behzadan , Carlos Aguirre , William H. Hsu

Sentiment analysis, a vital component in natural language processing, plays a crucial role in understanding the underlying emotions and opinions expressed in textual data. In this paper, we propose an innovative ensemble approach for…

计算与语言 · 计算机科学 2024-04-10 Mathivanan Periasamy , Rohith Mahadevan , Bagiya Lakshmi S , Raja CSP Raman , Hasan Kumar S , Jasper Jessiman

Social media has become an important tool to share information about crisis events such as natural disasters and mass attacks. Detecting actionable posts that contain useful information requires rapid analysis of huge volume of data in…

计算与语言 · 计算机科学 2020-11-03 Evangelia Spiliopoulou , Salvador Medina Maza , Eduard Hovy , Alexander Hauptmann

Political polarization in the US is on the rise. This polarization negatively affects the public sphere by contributing to the creation of ideological echo chambers. In this paper, we focus on addressing one of the factors that contributes…

计算与语言 · 计算机科学 2021-04-20 Ruibo Liu , Lili Wang , Chenyan Jia , Soroush Vosoughi

In this work, we propose a new model for aspect-based sentiment analysis. In contrast to previous approaches, we jointly model the detection of aspects and the classification of their polarity in an end-to-end trainable neural network. We…

计算与语言 · 计算机科学 2018-08-29 Martin Schmitt , Simon Steinheber , Konrad Schreiber , Benjamin Roth

In recent years, we have been faced with a series of natural disasters causing a tremendous amount of financial, environmental, and human losses. The unpredictable nature of natural disasters' behavior makes it hard to have a comprehensive…

社会与信息网络 · 计算机科学 2019-03-08 Amir Karami , Vishal Shah , Reza Vaezi , Amit Bansal

With the widespread dissemination of user-generated content on different social networks, and online consumer systems such as Amazon, the quantity of opinionated information available on the Internet has been increased. One of the main…

计算与语言 · 计算机科学 2020-11-16 Zeinab Rajabi , MohammadReza Valavi , Maryam Hourali

Sentiment-based stock prediction systems aim to explore sentiment or event signals from online corpora and attempt to relate the signals to stock price variations. Both the feature-based and neural-networks-based approaches have delivered…

计算与语言 · 计算机科学 2020-08-19 Yue Zhou , Kerstin Voigt

An important part of the information gathering and data analysis is to find out what people think about, either a product or an entity. Twitter is an opinion rich social networking site. The posts or tweets from this data can be used for…

信息检索 · 计算机科学 2024-09-05 Dwarampudi Mahidhar Reddy , N V Subba Reddy , N V Subba Reddy

Products reviews are one of the major resources to determine the public sentiment. The existing literature on reviews sentiment analysis mainly utilizes supervised paradigm, which needs labeled data to be trained on and suffers from…

计算与语言 · 计算机科学 2017-05-30 Murtadha Talib AL-Sharuee , Fei Liu , Mahardhika Pratama

Event detection in text streams is a crucial task for the analysis of online media and social networks. One of the current challenges in this field is establishing a performance standard while maintaining an acceptable level of…

计算与语言 · 计算机科学 2024-12-23 Marjolaine Ray , Qi Wang , Frédérique Mélanie-Becquet , Thierry Poibeau , Béatrice Mazoyer

As the popularity and reach of social networks continue to surge, a vast reservoir of opinions and sentiments across various subjects inundates these platforms. Among these, X social network (formerly Twitter) stands as a juggernaut,…

社会与信息网络 · 计算机科学 2025-04-16 Pardis Moradbeiki , Mohammad Ali Zare Chahooki

Entity summarization aims at creating brief but informative descriptions of entities from knowledge graphs. While previous work mostly focused on traditional techniques such as clustering algorithms and graph models, we ask how to apply…

计算与语言 · 计算机科学 2020-05-27 Dongjun Wei , Yaxin Liu , Fuqing Zhu , Liangjun Zang , Wei Zhou , Jizhong Han , Songlin Hu

Sentiment analysis is a crucial task in natural language processing (NLP) that enables the extraction of meaningful insights from textual data, particularly from dynamic platforms like Twitter and IMDB. This study explores a hybrid…

计算与语言 · 计算机科学 2026-03-02 Aish Albladi , Md Kaosar Uddin , Minarul Islam , Cheryl Seals