Performance Evaluation of Sentiment Analysis Methods for Brazilian Portuguese

2017 ◽  
pp. 245-251 ◽  
Author(s):  
Douglas Cirqueira ◽  
Antonio Jacob ◽  
Fábio Lobato ◽  
Adamo Lima de Santana ◽  
Márcia Pinheiro
Keyword(s):  
Performance Evaluation ◽  
Sentiment Analysis ◽  
Brazilian Portuguese ◽  
Analysis Methods

GINS: A Global intensifier-based N-Gram sentiment dictionary

2021 ◽  
pp. 1-14
Author(s):  
Hamed Zargari ◽  
Morteza Zahedi ◽  
Marziea Rahimi
Keyword(s):  
Sentiment Analysis ◽  
Essential Elements ◽  
Analysis Methods ◽  
Sentiment Dictionary ◽  
N Gram ◽  
Heterogeneous Effect ◽  
Sentiment Word

Words are one of the most essential elements of expressing sentiments in context although they are not the only ones. Also, syntactic relationships between words, morphology, punctuation, and linguistic phenomena are influential. Merely considering the concept of words as isolated phenomena causes a lot of mistakes in sentiment analysis systems. So far, a large amount of research has been conducted on generating sentiment dictionaries containing only sentiment words. A number of these dictionaries have addressed the role of combinations of sentiment words, negators, and intensifiers, while almost none of them considered the heterogeneous effect of the occurrence of multiple linguistic phenomena in sentiment compounds. Regarding the weaknesses of the existing sentiment dictionaries, in addressing the heterogeneous effect of the occurrence of multiple intensifiers, this research presents a sentiment dictionary based on the analysis of sentiment compounds including sentiment words, negators, and intensifiers by considering the multiple intensifiers relative to the sentiment word and assigning a location-based coefficient to the intensifier, which increases the covered sentiment phrase in the dictionary, and enhanced efficiency of proposed dictionary-based sentiment analysis methods up to 7% compared to the latest methods.

On the combination of "off-the-shelf" sentiment analysis methods

2016 ◽  
Author(s):  
Pollyanna Gonçalves ◽  
Daniel Hasan Dalip ◽  
Helen Costa ◽  
Marcos André Gonçalves ◽  
Fabrício Benevenuto
Keyword(s):  
Sentiment Analysis ◽  
Analysis Methods

scholarly journals Sentiment analysis methods for understanding large-scale texts: a case for using continuum-scored words and word shift graphs

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Andrew J Reagan ◽  
Christopher M Danforth ◽  
Brian Tivnan ◽  
Jake Ryland Williams ◽  
Peter Sheridan Dodds
Keyword(s):  
Sentiment Analysis ◽  
Large Scale ◽  
Analysis Methods

Performance Evaluation of Word and Sentence Embeddings for Finance Headlines Sentiment Analysis

2019 ◽  
pp. 161-172 ◽  
Author(s):  
Kostadin Mishev ◽  
Ana Gjorgjevikj ◽  
Riste Stojanov ◽  
Igor Mishkovski ◽  
Irena Vodenska ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Sentiment Analysis

Performance evaluation of static security analysis methods

1994 ◽  
Vol 9 (3) ◽  
pp. 1441-1449 ◽  
Author(s):  
A.P.S. Meliopoulos ◽  
C.S. Cheng ◽  
Feng Xia
Keyword(s):  
Performance Evaluation ◽  
Security Analysis ◽  
Analysis Methods ◽  
Static Security
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