Latest Posts

The Prevalence, Scaling and Variance of Urban Phenomena

This coming month (January 2017) sees the launch of another of Nature’s flagship journals Nature Human Behaviour. In it, Andres Gomez-Lievano, Oscar Patterson-Lomba, and Ricardo Hausmann explore an integrated model which explains the prevalence, scaling and variance of urban phenomena … Continue reading

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Tube Strike – Try Walking?

There’s a tube strike on today, with many tube stations expected to be closed. The inner city and central London are likely to be hardest hit, with stations closed in most in Zone 1 and all inside the Circle Line’s loop. Usefully, TfL recently published this map, which shows the central part of the Tube […]

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Crowdsourcing the Future?

About a month ago, on 7th December 2016, DR Kingsley Purdam (Manchester) organised a one day workshop on citizen science, and in particular on citizen science from a social science methodological perspective. The day organised with the support of the National Centre for Research Methods (NCRM). The purpose of the workshop/conference was to explore the … Continue reading Crowdsourcing the Future?

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My Year in Maps

Lots happened in 2016 to keep cartographers busy…here are some of my highlights (in no particular order).   Maps and the 20th Century: Drawing the Line at the British Library is an absolutely extraordinary exhibition at the British Library. The breadth and quality of maps on display is amazing. (Inspired by the exhibition, I am giving a […]

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Global Urban Constellations

Geographers have long grappled with the complex and ever changing configurations of global urbanism. Many terms have been coined to describe new 20th and 21st century urban forms: conurbations (Geddes, 1915), multi-nuclei cities (Harris & Ultman, 1945), megalopolis (Gottman, 1961), world cities (Hall, 1966), desakota (McGee, 1991),  fractal cities (Batty & Longley, 1994), network cities (Batten, 1995), … Continue reading Global Urban Constellations

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World Population Density Interactive Map

A brilliant new dataset produced by the European Commission was recently released- the Global Human Settlement Layer (GHSL). This is the first time that detailed and comprehensive population density and built-up area for the world has been available as open data. As usual, my first thought was to make an interactive map, now online at- http://luminocity3d.org/WorldPopDen/ … Continue reading World Population Density Interactive Map

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Christmas List 2016

Welcome to the Mapping London Christmas List 2016! Not long now until Christmas Day – if you are having a last minute present crisis, our list includes direct links, so you can browse, order, sit back and relax in the knowledge that the present selections for your London map geek friends (or yourself!) are all […]

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Where is the world’s most ‘godless’ city? – The Guardian

Where is the world’s most ‘godless’ city?
The Guardian
In England, a census data visualisation tool developed by Oliver O’Brien at UCL’s Centre for Advanced Spatial Analysis, revealed a clear split between neighbours Bradford and Leeds. Beyond the big numbers, the intensity of religious practice may matter …

and more »

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International Congress on Agent Computing

Between the 29th and 30th of November, the International Congress on Agent Computing was held at George Mason University. It was organized to celebrate the 20th anniversary of the publication of Growing Artificial Societies by Robert Axtell and Joshua Epstein. The congress brought together a great line up of interdisciplinary keynote speakers: Brian Arthur, Mike Batty, Stuart Kauffman and  David Krakauer and a  panel discussion entitled “Barriers to Progress in Agent Computing—Technical and Social” with Chris Barrett, Steven Kimbrough, Blake LeBaron, Dawn ParkerFlaminio Squazzoni and Leigh Tesfatsion. Along with the keynotes and there panel there were also over 19 posters and 59 presentations which showcased and demonstrated the theme of the congress, that of the:
“explosive growth of agent modeling over the past two decades in the social sciences, in business and government, and related areas, and offer a tour d’horizon of its present state and myriad applications. Looking forward, we will identify challenges and opportunities — Hilbert Problems, if you will — to shape the future of agent-based computational modeling.”

Joshua Epstein and Robert Axtell presenting their works.

Josh and Rob each gave really impressive talks entitled “Agent-­based modeling: From Napkins to Nations” and “The Adoption of Agent Computing over Time by Social Scientists as Compared to Game Theory and Experimental/ Behavioral Economics” respectively. Which reflected how agent computing has evolved over the last 20 years with plenty of funny anecdotes along the way including references and critiques of their works such as “masculine gods of their cyberspace creations” and where the field is going.
What really impressed me about the congress was the atmosphere. That of like minded individuals from many different disciplines coming together and discussing agent computing, complexity and modeling more generally.  Some of this can be seen via photos and tweets of the event.
Alison Heppenstall, Nick Malleson and myslef also participated at the congress with a talk entitled “ABM for Simulating Spatial Systems: How are we doing?” which assessed how has agent-based modeling within the geographical sciences advanced over the last 20 years. Below one can read a brief outline of the talk and a movie of presentation.

Abstract:

While great advances in modeling have been made, one of the greatest challenges we face is that of understanding human behavior and how people perceive and behave in physical spaces. Can new sources of data (i.e. “big data”) be used to explore the connections between people and places?   In this paper we will review of the current state of art of modeling geographical systems.  We highlight the challenges and opportunities through a series of examples that new data can be used to better understand and simulate how individuals behave within geographical systems.

Key Words: Agent-based Modeling, Geographical Information Science, Networks, Cities, Geographical Systems.

Reference:

Heppenstall, A., Crooks A.T. and Malleson, N. (2016), ABM for Simulating Spatial Systems: How are we doing? International Congress on Agent Computing, 29th-30th, November, Fairfax, VA.

The Growth of Geographical  ABM (selected examples).

Continue reading »

International Congress on Agent Computing

Between the 29th and 30th of November, the International Congress on Agent Computing was held at George Mason University. It was organized to celebrate the 20th anniversary of the publication of Growing Artificial Societies by Robert Axtell and Joshua Epstein. The congress brought together a great line up of interdisciplinary keynote speakers: Brian Arthur, Mike Batty, Stuart Kauffman and  David Krakauer and a  panel discussion entitled “Barriers to Progress in Agent Computing—Technical and Social” with Chris Barrett, Steven Kimbrough, Blake LeBaron, Dawn ParkerFlaminio Squazzoni and Leigh Tesfatsion. Along with the keynotes and there panel there were also over 19 posters and 59 presentations which showcased and demonstrated the theme of the congress, that of the:
“explosive growth of agent modeling over the past two decades in the social sciences, in business and government, and related areas, and offer a tour d’horizon of its present state and myriad applications. Looking forward, we will identify challenges and opportunities — Hilbert Problems, if you will — to shape the future of agent-based computational modeling.”

Joshua Epstein and Robert Axtell presenting their works.

Josh and Rob each gave really impressive talks entitled “Agent-­based modeling: From Napkins to Nations” and “The Adoption of Agent Computing over Time by Social Scientists as Compared to Game Theory and Experimental/ Behavioral Economics” respectively. Which reflected how agent computing has evolved over the last 20 years with plenty of funny anecdotes along the way including references and critiques of their works such as “masculine gods of their cyberspace creations” and where the field is going.
What really impressed me about the congress was the atmosphere. That of like minded individuals from many different disciplines coming together and discussing agent computing, complexity and modeling more generally.  Some of this can be seen via photos and tweets of the event.
Alison Heppenstall, Nick Malleson and myslef also participated at the congress with a talk entitled “ABM for Simulating Spatial Systems: How are we doing?” which assessed how has agent-based modeling within the geographical sciences advanced over the last 20 years. Below one can read a brief outline of the talk and a movie of presentation.

Abstract:

While great advances in modeling have been made, one of the greatest challenges we face is that of understanding human behavior and how people perceive and behave in physical spaces. Can new sources of data (i.e. “big data”) be used to explore the connections between people and places?   In this paper we will review of the current state of art of modeling geographical systems.  We highlight the challenges and opportunities through a series of examples that new data can be used to better understand and simulate how individuals behave within geographical systems.

Key Words: Agent-based Modeling, Geographical Information Science, Networks, Cities, Geographical Systems.

Reference:

Heppenstall, A., Crooks A.T. and Malleson, N. (2016), ABM for Simulating Spatial Systems: How are we doing? International Congress on Agent Computing, 29th-30th, November, Fairfax, VA.

The Growth of Geographical  ABM (selected examples).

Continue reading »

Lives on the Line v2: Estimated Life Expectancy by Small Areas

I’ve produced an updated version of a graphic that my colleague Dr James Cheshire created a few years ago, showing how the estimated life expectancy at birth various throughout the capital, using a geographical tube map to illustrate the sometimes short-distance changes. You can see an interactive version on my tube data visualisation platform. Click … Continue reading Lives on the Line v2: Estimated Life Expectancy by Small Areas

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