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Time series of adoption of constitutional provisions over time. Provisions cluster into 4 families according to their behaviour between World War I and II and the collapse of the Soviet Union.
A map of population density in the continental United States overlaid with the locations of the balloons in the DARPA Balloon Challenge forming the basis of Limits of Social Mobilisation
A document similarity network based on national constitutions. Each node represents a country and are coloured according to network community decomposition. Each colour corresponds to family of constitutions that are influenced and share similar language.
A representation of the ease of findability of a target under large scale social search, based on high resolution numerical simulations
Map networks of major cities according to communication patterns, the size of the nodes indicate network centrality under a targeted search. Washington DC, New York, Bratislava, London and Stockholm, the 5 cities featured in the Tag Challenge, are marked in black.
A representation of the hierarchy of adoption of provisions. Provisions related to work are identified, for example 'The right to join a trade union' is adopted before 'Limits in the employment of children' hinting at a roadmap to effective advocacy for children. Blue lines are network edges point down the hierarchy and red edges violate the hierarchy.
A representation of the preferred language of social media users against the language used in their own content. Languages detected using langid.
A heat map of propensity to violence in Switzerland based on spatial analysis of ethnic groups. The left hand image is the violence in the absence of physical barriers and the right hand image with their mitigating effect
How do people post tweets in different countries? The source field in Twtter data reveals which device or service was used to post content. This blog post describes the differences in devices in Kenya, Nigeria, India and Pakistan.