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- Re: New IR Data Set with 10 Million Dyadic Events
By: Gary King - Re: New IR Data Set with 10 Million Dyadic Events
By: Aleks
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Notification
« Did You Achieve Balance?! Part I | Main | Did You Achieve Balance?! Part II »
25 October 2005
New IR Data Set with 10 Million Dyadic Events
I thought you might be interested in a newly updated dataset of almost 10 million individually coded international events (1990-2004). Each event is summarized in the data as "Actor A does something to Actor B", with Actors A and B coded for about 450 countries (and other actors) and "does something to" coded in an ontology of about 200 types of actions. The data are coded by a computer "reading" millions of Reuters news reports. Will Lowe and I wrote an article* that evaluated the software system (produced by VRA) that performs this task and found that for the numbers of events it was possible to convince humans (trained Harvard undergraduates) to coded by hand, the machine did as well as the humans. However, in part since there is only so much pizza you can feed undergraduates, the machine clearly dominates for larger numbers of events. We previously released a dataset with 3.5 million events; this one is bigger, more accurate (since the software has been improved), and covers a longer time period.
Most international relations data are limited to analyses aggregated to the year or month. Yet, as we say in the article, when the Palestinians launch a mortar attack into Israel, the Israeli army does not wait until the end of the calendar year to react. We think there is much to be learned about international relations from data like these. For the data, documentation, and our article, see this site.
Gary
*Gary King and Will Lowe. 2003. "An Automated Information Extraction Tool For International Conflict Data with Performance as Good as Human Coders: A Rare Events Evaluation Design" International Organization, 57, 3 (July, 2003): Pp. 617-642.
Posted by Gary King at October 25, 2005 5:31 PM
Comments
Just a few days ago, there was an interesting contribution at http://infosthetics.com/archives/2005/10/conflict_event_data_networks_visualization.html about ways of visualizing this conflict data. This particular visualization reminds me closely of spatial models used for roll call data.
Posted by: Aleks at October 26, 2005 2:51 AM
that's an interesting graphic. There's an easy way to map most of the 200+ categories of the verb in each observation into a conflict-cooperation scale (we do this in our article) that can then be used for various continuous visualizations like the one you cite.
Gary
Posted by: Gary King at October 26, 2005 8:33 AM