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IC2S2 and CSS Amsterdam are organising a Datathon on Wednesday July 17th at the Institute for Advanced Study in the city center of Amsterdam.

Detail Summary
Date 17 July 2019
Time 09:00 - 18:00

This datathon is organised in collaboration with De Correspondent, a Dutch innovative new website for investigative journalism.

The objective of the Datathon is to meet like-minded people and foster future collaborations, learn new methods and algorithms, and have fun answering some of the research questions below, using the data provided by the datathon.

Data source:

A rich Youtube dataset, consisting of comments, videos, and transcriptions of over 1000 Youtube channels related to the extreme right and extreme left. The data covers a period from 2006 to 2018. The channels were collected through snowballing from a hand-picked sample of channels and manually checked to ensure reliability.

The dataset was compiled by Dimitri Tokmetzis, a journalist for the Dutch innovative new website De Correspondent.

Research questions:

  • The recent Benkler book Network Propaganda claims that there are systematic differences in the right and left media ecosystems. For example, the left ecosystem is claimed to maintain more truth-seeking norms and networks of accountability whereas the right is more identify-affirming. Can we find evidence for this in the Youtube data?
  • Politicians and organizations state that organized groups (e.g. the web brigades) can steer the political debate. Can we locate organized groups of users that introduce new ideas on Youtube channels?
  • In political science and popular discourse, the horseshoe theory asserts that far-left and far right, rather than being opposites, closely resemble one another, much like the ends of a horseshoe. Can we find users that move from far-right to far-left or reverse over time, and uncover the common ground between both extremes?


09.00 - 09.30 Opening
09.30 - 17.00 Set up groups and work
17.00 - 18.00 Small presentations

Ideas or questions?

Contact us at or

Join the slack group

For more information and updates: view the IC2S2 Datathon page