Normalizing ratings

As platforms and organisations use a wide variation of rating systems we need to normalize ratings to get consistent rating values over all sources.

To get this done we have a very simple rating schema. This means indexed content needs to be translated into the following schema:

value	label	description / example
3	No issues: Content is rated as not problematic. Credibility high or very high.	The reviewed item is rated as mostly true or true.
2	Neutral: Whether positive nor negative rating. Neutral credibility.	The reviewed item is not rated as true, mostly true, mostly false or false.
1	Questionable: Content is rated as questionable (at least for some aspects).Credibility low or very low.	The reviewed item is rated as mostly false or false.
n/a	No rating	There is no rating.

Mapping example for climatefeedback

reviewRating.alternateName climatefeedback	Hoaxly normalized rating
> 0.5	3
-0.5 - 0.5	2
< - 0.5	1
n/a	n/a

So if an article on climatefeedback is rated with 0.5 we want to have it saved in hoax.ly index with an normalized rating of 2 (neutral).

Rating json schema

See the following schema for an description how ratings should be presented in the hoax.ly index:

"ReviewRating": {
          "type": "object",
          "properties": {
            // THE ORIGINAL RATING
            "originalRatingValue": {
              "type": "integer"
            },
            // THE ORIGINAL ALTERNATE NAME
            "originalAlternateName": {
              "type": "string"
            },
            // THE LABEL FOR THE NORMALIZED RATING (Questionable, Neutral, No Issues)
            "alternateName": {
              "type": "integer"
            },
            // THE BEST RATING VALUE (IN OUR CASE ALWAYS 3)
            "bestRating": {
              "type": "integer"
            },
            // THE WORST RATING VALUE (IN OUR CASE ALWAYS 1)
            "worstRating": {
              "type": "integer"
            },
            // THE NORMALIZED RATING VALUE
            "ratingValue": {
              "type": "integer"
            }
          }
        },