As introduced in Subsection 2.1.1, user-generated content units consist of core data and metadata. Core data is the content itself. The content can be text, audio files, pictures, videos or a combination of these. Metadata is information about information. In the context of user-generated content metadata is further information about the content, such as the date of publication or the author of the content.
KeywordsMigraine Posit Stein Pier Sonal
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