TY - GEN
T1 - Sentiment analysis and prediction of events in TWITTER
AU - Montesinos, Lucas
AU - Rodriguez, S. Juan Pablo
AU - Orchard, Marcos
AU - Eyheramendy, Susana
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/2/4
Y1 - 2016/2/4
N2 - Sentiment analysis, also known as opinion mining, is a mechanism for understanding the natural disposition that people possess towards a specific topic. This type of information is very valuable for certain industries - digital marketing companies use sentiment analysis to track the public's mood about a particular product, the view of elected authorities in a given country, or to explain sports allegiances, among many other goals. A common approach to sentiment analysis consists of systematically reviewing content from websites, especially social networks like Facebook, Twitter, and Google+, and using an algorithm to determine the opinions of the masses. For this work, the main body of analysis came from the «Twittersphere.» On the Twitter platform, users send 140-character messages to the social network as a means of expressing their viewpoints on certain issues. These messages, or «tweets,» are then shown in the user's homepage. Twitter is used widely in Chile. This work analyzed the public's opinions on the presidential primaries for the Alliance political party between Andres Allamand «Renovación Nacional» (RN) and Pablo Longueira from «Union Democrata Independiente» (UDI) using information collected from Twitter in that country. After gathering all relevant data, researchers used sentiment analysis to predict the outcome of the primaries. This data identified citizens who were in favor (positive) of either Allamand or Longueira and people who were against (negative) any political party or persuasion. Researchers designed a dictionary algorithm to aid in these predictions. This was comprised of certain positive and negative words, which, when applied to the Twitter data, was able to determine the polarity of the message: positive, negative, and/or neutral. In addition, an exponential function was used for analyzing the distance between the words, which is useful to gather opinions where both candidates are mentioned, identifying polarity for each of them separately. Later, a score was assigned to each Twitter user. Those cumulative scores were ultimately used to predict the way those given users would vote in the primary elections.
AB - Sentiment analysis, also known as opinion mining, is a mechanism for understanding the natural disposition that people possess towards a specific topic. This type of information is very valuable for certain industries - digital marketing companies use sentiment analysis to track the public's mood about a particular product, the view of elected authorities in a given country, or to explain sports allegiances, among many other goals. A common approach to sentiment analysis consists of systematically reviewing content from websites, especially social networks like Facebook, Twitter, and Google+, and using an algorithm to determine the opinions of the masses. For this work, the main body of analysis came from the «Twittersphere.» On the Twitter platform, users send 140-character messages to the social network as a means of expressing their viewpoints on certain issues. These messages, or «tweets,» are then shown in the user's homepage. Twitter is used widely in Chile. This work analyzed the public's opinions on the presidential primaries for the Alliance political party between Andres Allamand «Renovación Nacional» (RN) and Pablo Longueira from «Union Democrata Independiente» (UDI) using information collected from Twitter in that country. After gathering all relevant data, researchers used sentiment analysis to predict the outcome of the primaries. This data identified citizens who were in favor (positive) of either Allamand or Longueira and people who were against (negative) any political party or persuasion. Researchers designed a dictionary algorithm to aid in these predictions. This was comprised of certain positive and negative words, which, when applied to the Twitter data, was able to determine the polarity of the message: positive, negative, and/or neutral. In addition, an exponential function was used for analyzing the distance between the words, which is useful to gather opinions where both candidates are mentioned, identifying polarity for each of them separately. Later, a score was assigned to each Twitter user. Those cumulative scores were ultimately used to predict the way those given users would vote in the primary elections.
KW - Analysis of Feelings
KW - Computational Learning
KW - Emotional Lexicon Dictionary
KW - Prediction
KW - Twitter
UR - http://www.scopus.com/inward/record.url?scp=84964874581&partnerID=8YFLogxK
U2 - 10.1109/Chilecon.2015.7404680
DO - 10.1109/Chilecon.2015.7404680
M3 - Conference contribution
AN - SCOPUS:84964874581
T3 - CHILECON 2015 - 2015 IEEE Chilean Conference on Electrical, Electronics Engineering, Information and Communication Technologies, Proceedings of IEEE Chilecon 2015
SP - 903
EP - 910
BT - CHILECON 2015 - 2015 IEEE Chilean Conference on Electrical, Electronics Engineering, Information and Communication Technologies, Proceedings of IEEE Chilecon 2015
A2 - Fernandez, Mario F.
A2 - Lefranc, Gaston H.
A2 - Perez, Ricardo
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 28 October 2015 through 30 October 2015
ER -