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2016
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Extracting Opinion Targets from Environmental Web Coverage and Social Media Streams

3 years 18 days ago
Extracting Opinion Targets from Environmental Web Coverage and Social Media Streams
Policy makers and environmental organizations have a keen interest in awareness building and the evolution of stakeholder opinions on environmental issues. Mere polarity detection, as provided by many existing methods, does not suffice to understand the emergence of collective awareness. Methods for extracting affective knowledge should be able to pinpoint opinion targets within a thread. Opinion target extraction provides a more accurate and fine-grained identification of opinions expressed in online media. This paper compares two different approaches for identifying potential opinion targets and applies them to comments from the YouTube video sharing platform. The first approach is based on statistical keyword analysis in conjunction with sentiment classification on the sentence level. The second approach uses dependency parsing to pinpoint the target of an opinionated term. A case study based on YouTube postings applies the developed methods and measures their ability to handl...
Albert Weichselbraun, Arno Scharl, Stefan Gindl
Added 03 Apr 2016
Updated 03 Apr 2016
Type Journal
Year 2016
Where HICSS
Authors Albert Weichselbraun, Arno Scharl, Stefan Gindl
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