The Review of Tracking Protests Using Geo-tagged Flickr Photographs
Summary of Article
There has been an increase in coordinating events via social media as a way to organize. Online forums have created new data to analyze and measure human behavior. There has also been a shift on these platforms from text reports to visual reports using photo and video. The goal of this research article was to see if it is possible to identify protest outbreaks through quantitative analysis using photographs uploaded to Flickr in 2013. This is an example of the study of human behavior using online platforms on a global scale.
 Materials and Methods
Researchers collected 29,944,764 geotagged photographs uploaded to Flickr between January 1, 2013 to December 31, 2013. They collected details from the photographs such as: information about the photographer, title of photo, url where a user could download it, location where the photograph was taken, the time it was taken and tags that were used to categorize it. All the photographs collected used the tag word âprotestâ. They translated the tag âprotestâ into 34 different languages to account its global scale. They then broke down the research into weekly (Monday thru Sunday) segments and then separated them by their respected countries. There were 244 countries and regions. To account for Ground Truth, a term used to refer to information provided by direct observation rather than information provided by inference, the researchers collected articles related to protests. They collected 178,730 articles from The Guardian online edition for all of 2013. Articles were collected using the same rules as the collected Flickr photographs. They separated articles based on their country and region, used the tag word âprotestâ (which was also translated into 34 different languages) and separated articles into weekly segments. The Guardian uses a different tagging system than Flickr for the UK and the US, therefore researchers separated articles based on the tag: England, Scotland, Wales and Northern Ireland for the UK and for the US they used the tag US News. The goal was to see if there was a relationship between Flickr user activity and protest outbreaks and to see whether there was an outcome variable between The Guardian articles and the Flickr photographs.
 Key Conclusions
Researchers found clear differences between Flickr and The Guardian online articles but also similarities such as an increase in protests in Brazil and Turkey in June 2013. They found that there was a greater number of protests Flickr photographs in a given week related to a specific region or country corresponded to a greater proportion of The Guardian articles that were tagged using the word âprotestâ in those same areas. This meant that if they were to fix the tagged Flickr photographs at 0.1 it would increase the number of protest themed articles by 34%. Researchers found that they could not rule out the possibility that Flickr users were posting photographs as a direct result of a published article relating to protests, however with geotagging it made it was less likely a cause.
 My Opinion
This article failed to follow through in the research. The authors did not analyze the data in detail such as: describing similarities and differences between The Guardian articles and Flickr photographs, what accounted for these differences or similarities, any discrepancies between the data and how they got to a 34% increase. The tagging system used for The Guardian articles differed to Flickr but only in regards to location. I was confused as to if that changed the data. I would assume that readers could access what country or region was being discussed just by reading it. This then leads to questions such as: Does the tagging systems matter if you are referring to location? Was it just another data asset to add? Could it have changed the accuracy of the data? Â This research did however give valuable insight into how it can be used to measure human behavior at a global scale using free and cheap sources.
 In conclusion, I believe that more research could be done using this type of data collection. However, it needs to be properly vetted and analyzed to come up with more key takeaways.









