There is a huge popularity of community websites and social media sites across the internet of opinionated text on web. Users express their ideas and suggestions regarding various products and services. These opinions are subjective that shows their sentiments, and feelings. People use these opinion sources to formalize knowledge for further reuse. It leads to emergence of a new field opinion mining. It differs from traditional fact based data mining, generally done by search engines.
The most important challenge is the sarcastic comments in the reviews. Example: A movie review as "Hero killed the Villain, I met him midway to heaven". As per the rules of semantics, this statement is positive and the opinion is negative. This explains the complexity of Opinion Mining.
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- Social Psychology
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