polidex

An experimental tool that should not be used as a source of information or opinion.

How much political bias is there in NZ media?

polidex aims to answer this question.

Political bias in the media can be subtle and sometimes un-intentional.
Polidex measures relative positive and negative sentiment in NZ media political reporting.

 View results    How it works

Positive bias
Negative bias

How does polidex work?

Here is a step-by-step breakdown of the process.

  1. Fetch articles from NZ news sites where possible every hour.
  2. Determine if the article is political via keyword match.
  3. Determine if this article is referencing a party in particular via keyword match. A minimum mention threshold of 2 is applied narrow down results.
  4. Remove any quoted sentances - we can assume these are comments from the party so we dont want this to impact on sentiment.
  5. Run sentiment analysis on the article to assign it a value on a scale between -100 and 100.
  6. Average out the sentiment between each news source and display a relatively adjusted result.

articles have been polidexed since June 23, 2021 (the last 120 days). View them

Sometimes articles might be flagged incorrectly - as non-policatal, political, or the wrong party. We aim to improve this over time. Values are relative so they should automatically adjust for factually negative or positive news.

Parties must be mentioned atleast 5 times before being polidexed.

Currently polidexing . Polidex relies on RSS feeds and scraping so not all sites are polidexible.

Polidex uses PHP Sentiment Analyzer to perform its sentiment calculations.

back to top