Start at 15:30 in-person on-campus in LECT-061 (room TBC)
with "livestreaming" via Zoom: https://bruneluniversity.zoom.us/j/95070805299
- Meeting ID: 950 7080 5299 (use Passcode as communicated per email)
ABSTRACT: This talk will present an approach developed recently to measure heterogeneity in complex systems. It was introduced to reveal multiscalar spatial dissimilarities in cities, from the most local scale to the metropolitan one, and urban segregation will indeed be taken here as an exemplar to explain and illustrate the new method. Think, for instance, of a statistical variable that may be measured at different scales in a city, e.g. ethnic group proportions, social housing rate, income distribution, or public transportation network density. Then, to any point in the city there corresponds a sequence of values for the variable, as one zooms out around the starting point, all the way up to the whole city – as if with a varifocal camera lens. The sequences thus produced encode spatial dissimilarities in a precise manner: how much they differ from perfectly random sequences is indeed a signature of the underlying spatial structure, and the analysis of this signature allows us to measure certain properties of the spatial structure.
Segregation through the multiscalar lens, Olteanu, M., Randon-Furling, J., & Clark, W. A. V. (2019) PNAS, 116(25), 12250-12254.
From urban segregation to spatial structure detection, Randon-Furling, J., Olteanu, M., & Lucquiaud, A. (2020). EPB: Urban Analytics and City Science, 47(4), 645-661.
Measuring and Visualizing Patterns of Ethnic Concentration: The Role of Distortion Coefficients, de Bézenac, C., Clark, W. A., Olteanu, M., & Randon‐Furling, J. (2021). Geographical Analysis, 12271