Results 31 to 40 of about 630,301 (124)

Topic-dependent sentiment analysis of financial blogs [PDF]

open access: yes, 2009
While most work in sentiment analysis in the financial domain has focused on the use of content from traditional finance news, in this work we concentrate on more subjective sources of information, blogs.
Bermingham, Adam   +6 more
core   +2 more sources

Text sentiment visual analysis technology and its application in humanities

open access: yes大数据, 2022
Sentiment analysis is the mining of information sentiment tendency, which is mainly used for public opinion monitoring, commodity review analysis, and information retrieval.With the rapid development of social media, the volume of text data has shown ...
Lingli ZHANG   +6 more
doaj  

A Survey on Feature Extraction Techniques, Classification Methods and Applications of Sentiment Analysis [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2023
Rapid developments in the era of IoT technologies, coupled with the espousal of social media tools and applications, have promoted the use of data analytics as a means to gain significant insights from unstructured data. Sentiment analysis is an approach
Yadav Meenakshi Muthukrishnan Seethalakshmi   +2 more
doaj   +1 more source

Challenges and Issues in Sentiment Analysis: A Comprehensive Survey

open access: yesIEEE Access, 2023
Sentiment analysis, a specialization of natural language processing (NLP), has witnessed significant progress since its emergence in the late 1990s, owing to the swift advances in deep learning techniques and the abundance of vast digital datasets ...
Nilaa Raghunathan   +1 more
doaj   +1 more source

Better Document-level Sentiment Analysis from RST Discourse Parsing [PDF]

open access: yes, 2015
Discourse structure is the hidden link between surface features and document-level properties, such as sentiment polarity. We show that the discourse analyses produced by Rhetorical Structure Theory (RST) parsers can improve document-level sentiment ...
Bhatia, Parminder   +2 more
core   +1 more source

Improving the performance of lexicon-based review sentiment analysis method by reducing additional introduced sentiment bias. [PDF]

open access: yesPLoS ONE, 2018
Sentiment analysis is widely studied to extract opinions from user generated content (UGC), and various methods have been proposed in recent literature. However, these methods are likely to introduce sentiment bias, and the classification results tend to
Hongyu Han   +4 more
doaj   +1 more source

Sentiment Lexicon Adaptation with Context and Semantics for the Social Web [PDF]

open access: yes, 2017
Sentiment analysis over social streams offers governments and organisations a fast and effective way to monitor the publics' feelings towards policies, brands, business, etc.
Bollen   +7 more
core   +1 more source

A Barrage Sentiment Analysis Scheme Based on Expression and Tone

open access: yesIEEE Access, 2019
Most of existing methods do not consider the influence of expression and tone on barrage sentiment analysis. This decreases the effect and accuracy of barrage sentiment analysis.
Zongmin Cui   +5 more
doaj   +1 more source

Combining Sentiment Lexica with a Multi-View Variational Autoencoder [PDF]

open access: yes, 2019
When assigning quantitative labels to a dataset, different methodologies may rely on different scales. In particular, when assigning polarities to words in a sentiment lexicon, annotators may use binary, categorical, or continuous labels.
Augenstein, Isabelle   +4 more
core   +2 more sources

Knowledge-Guided Sentiment Analysis Via Learning From Natural Language Explanations

open access: yesIEEE Access, 2021
Sentiment analysis is crucial for studying public opinion since it can provide us with valuable information. Existing sentiment analysis methods rely on finding the sentiment element from the content of user-generated.
Zunwang Ke   +4 more
doaj   +1 more source

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