A Novel Visualization Method for Distinction of Web News Sentiment
A Novel Visualization Method for Distinction of Web News Sentiment
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DOI:
10.1007/978-3-642-04409-0_22
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发表时间:
2009-10
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影响因子:
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通讯作者:
Jianwei Zhang;Yukiko Kawai;Tadahiko Kumamoto;Katsumi Tanaka
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文献类型:
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作者:
Jianwei Zhang;Yukiko Kawai;Tadahiko Kumamoto;Katsumi Tanaka
Recently, an increasing number of news websites have come to provide various featured services. However, effective analysis and presentation for distinction of viewpoints among different news sources are limited. We focus on the sentiment aspect of news reporters' viewpoints and propose a system called the Sentiment Map for distinguishing the sentiment of news articles and visualizing it on a geographical map based on map zoom control. The proposed system provides more detailed sentiments than conventional sentiment analysis which only considers positive and negative emotions. When a user enters one or more query keywords, the sentiment map not only retrieves news articles related to the concerned topic, but also summarizes sentiment tendencies of Web news based on specific geographical scales. Sentiments can be automatically aggregated at different levels corresponding to the change of map scales. Furthermore, we take into account the aspect of time, and show the variation in sentiment over time. Experimental evaluations conducted by a total of 100 individuals show the sentiment extraction accuracy and the visualization effect of the proposed system are good.