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This is the wiki of the Linked Data Models for Emotion and Sentiment Analysis Community Group. This community is a forum to promote sentiment analysis research.

Topics addressed

  • Definition of a Linked Data based vocabulary for emotion and sentiment analysis.
  • Requirements beyond text-based analysis, i.e. emotion/sentiment analysis from images, video, audio, social network analysis, etc.
  • Clarifying requirements and the need for consensus as e.g. systems currently use widely varying features for describing polarity values (1-5, -2/-1/0/1/2, positive/neutral/negative, good/very good etc.).
  • Marl and Onyx are vocabularies for emotion and sentiment analysis that can be taken as a starting point for discussion in the CG.

This group will not publish specifications.


The group uses the public mailing list as its primary means of communication. You may subscribe, browse the archive and send new emails here:

Our monthly meetings are held via WebEx. The meeting announcements and information on how to join are sent to the mailing list.

Further information


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For more information, visit the W3C's Intellectual Rights FAQ.