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...

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Bibliographic Details
Main Authors: Weichselbraun, Albert, Scharl, Arno, Gindl, Stefan
Format: Conference Proceeding
Language:English
Subjects:
Classification
climate change
Conferences
Digital media
Earth
Evolution
Feature extraction
keyword analysis
Media
Meteorology
opinion mining
opinion target extraction
Organizations
Platforms
Polarity
Sentences
sentiment analysis
Social networks
Syntactics
YouTube
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Summary: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 handle noisy input data from social media streams.
ISSN:1530-1605
2572-6862
1530-1605
DOI:10.1109/HICSS.2016.133