# Opinion Lexicon: Negative

This file contains a list of NEGATIVE opinion words (or sentiment words).

This file and the papers can all be downloaded from
http://www.cs.uic.edu/~liub/FBS/sentiment-analysis.html

If you use this list, please cite one of the following two papers:

Minqing Hu and Bing Liu. "Mining and Summarizing Customer Reviews."
Proceedings of the ACM SIGKDD International Conference on Knowledge
Discovery and Data Mining (KDD-2004), Aug 22-25, 2004, Seattle,
Washington, USA,
Bing Liu, Minqing Hu and Junsheng Cheng. "Opinion Observer: Analyzing
and Comparing Opinions on the Web." Proceedings of the 14th
International World Wide Web conference (WWW-2005), May 10-14,
2005, Chiba, Japan.

## Notes:

    1. The appearance of an opinion word in a sentence does not necessarily
       mean that the sentence expresses a positive or negative opinion.
       See the paper below:

       Bing Liu. "Sentiment Analysis and Subjectivity." An chapter in
          Handbook of Natural Language Processing, Second Edition,
          (editors: N. Indurkhya and F. J. Damerau), 2010.

    2. You will notice many misspelled words in the list. They are not
       mistakes. They are included as these misspelled words appear
       frequently in social media content.

---

# Opinion Lexicon: Positive

This file contains a list of POSITIVE opinion words (or sentiment words).

This file and the papers can all be downloaded from
http://www.cs.uic.edu/~liub/FBS/sentiment-analysis.html

If you use this list, please cite one of the following two papers:

Minqing Hu and Bing Liu. "Mining and Summarizing Customer Reviews."
Proceedings of the ACM SIGKDD International Conference on Knowledge
Discovery and Data Mining (KDD-2004), Aug 22-25, 2004, Seattle,
Washington, USA,
Bing Liu, Minqing Hu and Junsheng Cheng. "Opinion Observer: Analyzing
and Comparing Opinions on the Web." Proceedings of the 14th
International World Wide Web conference (WWW-2005), May 10-14,
2005, Chiba, Japan.

## Notes:

    1. The appearance of an opinion word in a sentence does not necessarily
       mean that the sentence expresses a positive or negative opinion.
       See the paper below:

       Bing Liu. "Sentiment Analysis and Subjectivity." An chapter in
          Handbook of Natural Language Processing, Second Edition,
          (editors: N. Indurkhya and F. J. Damerau), 2010.

    2. You will notice many misspelled words in the list. They are not
       mistakes. They are included as these misspelled words appear
       frequently in social media content.