Guardian sentiment analysis - explanation

By parsing the comments from articles appearing in the Guardian newspaper an attempt is made to judge the overall reader sentiment with regard to the content. Please see this blog post for a more complete description.

There are two means to view sentiment, using this page to value a single article, or this page to get a list of overall scores for a set of articles.

The sentiment value for an article is the average sentiment score of the associated comments. The score for a comment is composed as follows:

Note that only head comments are used, not replies, and of these only the first 100.

Contains information from AFINN, which is made available here under the Open Database License (ODbL).