Uma Análise da Polaridade Expressa nas Manchetes de Notícias Brasileiras
Abstract
In the last years, with the growth of the internet as a means of communication, a large number of people changed the way they consume news, replacing the traditional newspapers and magazines with the virtual and online versions. In order to lure people's attention and attract their clicks, news websites have to create effective strategies. Considering this, we investigate the possible strategies used by Brazilian news websites in the design of their headlines. Specifically, we analyze the number of 59.510 news produced by 8 different and important Brazilian newspapers over a 3-month period in 2015. To find the strategies that could be used to attract clicks, we extracted news text features with the polarity within the headlines. We also present a methodology to evaluate the headline polarity's strength over time. Our results reveal a number of interesting observations on polarity within the news and, in addition, we identified strong evidence that the polarity of the headlines is impacted by the occurrence of specific events.
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