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With the growth of social medias, such as Twitter, plenty of user-generated data emerge daily. The short texts published on Twitter -- the tweets -- have earned significant attention as a rich source of information to guide many…

Artificial Intelligence · Computer Science 2021-06-01 Sérgio Barreto , Ricardo Moura , Jonnathan Carvalho , Aline Paes , Alexandre Plastino

Lexicon-based approaches to sentiment analysis of text are based on each word or lexical entry having a pre-defined weight indicating its sentiment polarity. These are usually manually assigned but the accuracy of these when compared…

Computation and Language · Computer Science 2023-11-13 Siddhant Jaydeep Mahajani , Shashank Srivastava , Alan F. Smeaton

The rapid production of data on the internet and the need to understand how users are feeling from a business and research perspective has prompted the creation of numerous automatic monolingual sentiment detection systems. More recently…

Computation and Language · Computer Science 2021-02-26 Nazanin Sabri , Ali Edalat , Behnam Bahrak

Several research initiatives have been proposed for computing similarity between two Fuzzy Sets in analysis through Fuzzy Rough Sets. These techniques yield two measures viz. lower similarity and upper similarity. While in most applications…

Artificial Intelligence · Computer Science 2021-07-05 Nidhika Yadav

Today's business ecosystem has become very competitive. Customer satisfaction has become a major focus for business growth. Business organizations are spending a lot of money and human resources on various strategies to understand and…

Computation and Language · Computer Science 2021-10-05 Md. Taufiqul Haque Khan Tusar , Md. Touhidul Islam

In this paper, we propose the Brand-Topic Model (BTM) which aims to detect brand-associated polarity-bearing topics from product reviews. Different from existing models for sentiment-topic extraction which assume topics are grouped under…

Machine Learning · Computer Science 2021-01-26 Runcong Zhao , Lin Gui , Gabriele Pergola , Yulan He

Volatility prediction--an essential concept in financial markets--has recently been addressed using sentiment analysis methods. We investigate the sentiment of annual disclosures of companies in stock markets to forecast volatility. We…

Information Retrieval · Computer Science 2018-04-05 Navid Rekabsaz , Mihai Lupu , Artem Baklanov , Allan Hanbury , Alexander Duer , Linda Anderson

Trustworthiness especially for service oriented system is very important topic now a day in IT field of the whole world. Certain Trust Model depends on some certain values given by experts and developers. Here, main parameters for…

Cryptography and Security · Computer Science 2013-03-05 Kawser Wazed Nafi , Tonny Shekha kar , Amjad Hossain , M. M. A Hashem

Sentiment analysis seeks to identify the viewpoint(s) underlying a text span; an example application is classifying a movie review as "thumbs up" or "thumbs down". To determine this sentiment polarity, we propose a novel machine-learning…

Computation and Language · Computer Science 2007-05-23 Bo Pang , Lillian Lee

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…

Portfolio Management · Quantitative Finance 2024-11-21 Szymon Lis

Sentiment analysis AKA opinion mining is one of the most widely used NLP applications to identify human intentions from their reviews. In the education sector, opinion mining is used to listen to student opinions and enhance their…

Computation and Language · Computer Science 2023-02-10 Thanveer Shaik , Xiaohui Tao , Christopher Dann , Haoran Xie , Yan Li , Linda Galligan

Prediction and quantification of future volatility and returns play an important role in financial modelling, both in portfolio optimization and risk management. Natural language processing today allows to process news and social media…

Statistical Finance · Quantitative Finance 2020-12-14 Justina Deveikyte , Helyette Geman , Carlo Piccari , Alessandro Provetti

Aspect based sentiment analysis, predicting sentiment polarity of given aspects, has drawn extensive attention. Previous attention-based models emphasize using aspect semantics to help extract opinion features for classification. However,…

Computation and Language · Computer Science 2021-04-13 Lu Xu , Lidong Bing , Wei Lu , Fei Huang

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…

Computer Vision and Pattern Recognition · Computer Science 2015-09-22 Quanzeng You , Jiebo Luo , Hailin Jin , Jianchao Yang

The automatic content analysis of mass media in the social sciences has become necessary and possible with the raise of social media and computational power. One particularly promising avenue of research concerns the use of opinion mining.…

Social and Information Networks · Computer Science 2015-12-01 Pedro Saleiro , Sílvio Amir , Mário J. Silva , Carlos Soares

In the era of rapid Internet and social media platform development, individuals readily share their viewpoints online. The overwhelming quantity of these posts renders comprehensive analysis impractical. This necessitates an efficient…

Computation and Language · Computer Science 2024-09-27 Chung-Chi Chen , Hen-Hsen Huang , Hsin-Hsi Chen , Hiroya Takamura , Ichiro Kobayashi , Yusuke Miyao

In the last few years thousands of scientific papers have investigated sentiment analysis, several startups that measure opinions on real data have emerged and a number of innovative products related to this theme have been developed. There…

Computation and Language · Computer Science 2016-07-18 Filipe Nunes Ribeiro , Matheus Araújo , Pollyanna Gonçalves , Fabrício Benevenuto , Marcos André Gonçalves

The task of predicting fine grained user opinion based on spontaneous spoken language is a key problem arising in the development of Computational Agents as well as in the development of social network based opinion miners. Unfortunately,…

Computation and Language · Computer Science 2019-09-11 Alexandre Garcia , Pierre Colombo , Slim Essid , Florence d'Alché-Buc , Chloé Clavel

The recent progress on image recognition and language modeling is making automatic description of image content a reality. However, stylized, non-factual aspects of the written description are missing from the current systems. One such…

Computer Vision and Pattern Recognition · Computer Science 2015-12-15 Alexander Mathews , Lexing Xie , Xuming He

Todays world is a world of Internet, almost all work can be done with the help of it, from simple mobile phone recharge to biggest business deals can be done with the help of this technology. People spent their most of the times on surfing…

Computation and Language · Computer Science 2014-06-17 Richa Sharma , Shweta Nigam , Rekha Jain