The latest outputs from researchers, alumni and friends at the UCL Centre for Advanced Spatial Analysis (CASA).
When love and maths go together! | Science & Environment News Zee NewsMathematics can prove to be a crucial tool for understanding love by negotiating its complicated, often baffling, sometimes infuriating and always interesting …
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Truth amid all those dots
Winnipeg Free Press He is a lecturer at the Bartlett Centre for Advanced Spatial Analysis, an arm of University College London. On his blog, Urban Movements (urbanmovements.co.uk), he turns data into images that tell stories of, to use his words, “flows, behaviour and … |
At the request of Diana Sinton, the Executive Director of the University Consortium for Geographic Information Science (UCGIS), I gave the seminar talk about the linkage between Geographic Information Science and Citizen Science. A detailed description of the talk and the slides are available here. The webinar announcement is at http://ucgis.org/ucgis-webinars/geographic-information-citizen-science-reciprocal-opportunities. The webinar was recorded, so … Continue reading UCGIS webinar [Geographic information | Citizen] Science: reciprocal opportunities
Stations on the tube map with multiple lines are normally shown with a white circle (except where obscured by a disabled access blob) indicating connections where you can change lines there, while continuing on a single journey (and so not have to pay for two). However, there are a number of connections not shown on … Continue reading Out of Station Interchanges (OSIs) →
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So, we thought yesterday’s post on Google Maps fo […]
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There is considerable debate about “creative cities” and relatively few agent-based models that explore such ideas from the bottom up. To that end we have recently published a paper in the Journal of Artificial Societies and Social Simulation entitled:…
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There is considerable debate about “creative cities” and relatively few agent-based models that explore such ideas from the bottom up. To that end we have recently published a paper in the Journal of Artificial Societies and Social Simulation entitled:…
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Google Maps has let Pac-Man loose on real city streets for April Fools’ Day
CityMetric When I visited his office at the Bartlett Centre for Advanced Spatial Analysis (CASA) the first thing he did was get out a black cap laced with wires and small plastic rings, and make me try it on. Image: author’s own. His PhD project, he says, began … |
In our previous work, we have highlighted that empathy, the ability to understand and share the feelings of another; is an emotional capacity that has often been overlooked as a design goal in the creation of digital systems (Coulton et al. 2014). Empathy may be viewed as one of the […]
The post Promoting Empathy between Physically Seperated Communities through the Sharing of Prayers appeared first on CEDE.
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We’ve mentioned Google’s excellent aerial i […]
Continue reading »By way of a warm up to future blogging pleasures, I thought I’d post some mapping work I did for actual fun last year. As Christmas gifts for family I decided to make some custom maps of Winnipeg, Canada (location not chosen randomly, they’re actually from there). Don’t know Winnipeg? Well… It’s a city of nearly 700000 in …
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Woah – it’s been a long time since my last blog post. Over a year in fact, yikes, how time flies… Well apologies for my absence, hope you have been keeping well. Since moving to being a Lecturer at UCL CASA I’ve had a little less time to spend on data wrangling and map making. That’s …
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Last year I published the above graphic, which then got […]
Continue reading »I enjoy burgers and have a passion for maps and […]
Continue reading »UCL organised a debate about fossil fuel divestment, with 7 knowledgeable speakers (all professors), raising argument for an against the suggestion that UCL should divest from fossil fuels and sell its £21million invested in the industry. In the room and on the panel there were more people who supported the motion than those who opposed it. … Continue reading UCL Fossil Fuel Divestment debate
When reading papers about agent-based models / individual-based models, I am always curious if the model can be reproduced from the description in said paper. Specifically whether there is sufficient information in the paper to reproduce the model and the results. Often we task students with such a task as a learning exercise and I thought it would be nice to show you one such example done by Dale Brearcliffe.
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| Graphical User Interface of Reproduced Model |
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| Nest composition and development in the original model (Source: Hogeweg and Hesper, 1983). |
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| Nest composition and development in the reproduced model. |
Hogeweg, P. and Hesper, B. (1983), ‘The Ontogeny of the Interaction Structure in Bumble Bee Colonies: A MIRROR Model’, Behavioral Ecology and Sociobiology, 12(4): 271-283.
Axtell, R., Axelrod, R., Epstein, J.M. and Cohen, D. (1996), ‘Aligning Simulation Models: A Case Study and Results‘, Computational and Mathematical Organization Theory, 1(2): 123-141.
Drummond, C. (2009), ‘Replicability is Not Reproducibility: Nor is it Good Science‘, Proceedings of the 4th Workshop on Evaluation Methods for Machine Learning at the 26th International Conference on Machine Learning, Montreal, Canada.
Wilensky, U. and Rand, W. (2007), ‘Making Models Match: Replicating an Agent-Based Model’, Journal of Artificial Societies and Social Simulation, 10(4): 2, Available at http://jasss.soc.surrey.ac.uk/10/4/2.html.
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When reading papers about agent-based models / individual-based models, I am always curious if the model can be reproduced from the description in said paper. Specifically whether there is sufficient information in the paper to reproduce the model and the results. Often we task students with such a task as a learning exercise and I thought it would be nice to show you one such example done by Dale Brearcliffe.
|
| Graphical User Interface of Reproduced Model |
|
| Nest composition and development in the original model (Source: Hogeweg and Hesper, 1983). |
|
| Nest composition and development in the reproduced model. |
Hogeweg, P. and Hesper, B. (1983), ‘The Ontogeny of the Interaction Structure in Bumble Bee Colonies: A MIRROR Model’, Behavioral Ecology and Sociobiology, 12(4): 271-283.
Axtell, R., Axelrod, R., Epstein, J.M. and Cohen, D. (1996), ‘Aligning Simulation Models: A Case Study and Results‘, Computational and Mathematical Organization Theory, 1(2): 123-141.
Drummond, C. (2009), ‘Replicability is Not Reproducibility: Nor is it Good Science‘, Proceedings of the 4th Workshop on Evaluation Methods for Machine Learning at the 26th International Conference on Machine Learning, Montreal, Canada.
Wilensky, U. and Rand, W. (2007), ‘Making Models Match: Replicating an Agent-Based Model’, Journal of Artificial Societies and Social Simulation, 10(4): 2, Available at http://jasss.soc.surrey.ac.uk/10/4/2.html.
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CityMetric |
Hailo hates the idea of driverless cars, so it’s projecting drivers’ faces …
CityMetric There’s a theory, or possibly a conspiracy theory, doing the rounds at the moment: that taxi apps have been developed to step seamlessly into the driverless car market once the technology hits public roads. By then, they’ll have the branding and reach … |
We just had a paper accepted in Advances in Complex Systems entitled “The Effect of In-group Favoritism on the Collective Behavior of Individuals’ Opinions.” In the paper we develop and an agent-based model to explore how individuals interact and how m…
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We just had a paper accepted in Advances in Complex Systems entitled “The Effect of In-group Favoritism on the Collective Behavior of Individuals’ Opinions.” In the paper we develop and an agent-based model to explore how individuals interact and how m…
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View the site here.
HEFCE have released funding prior to a full loan system being introduced that provides bursaries to students wishing to pursue postgraduate study. The ways in which this scheme are being operated by the different university are d…
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A fan of Shaun the Sheep? Well, you are going to be see […]
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Ordnance Survey have this week released four new additions to their Open Data product suite. The four, which were announced earlier this month, are collectively branded as OS Open and include OS Open Map Local, which, like Vector Map District (VMD), is a vector dataset containing files for various feature types, such as building polygons … Continue reading OS Open →
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A new book out about OpenStreetMap and Geographic Information Science. The book, which was edited by Jamal Jokar Arsanjani, Alexander Zipf, Peter Mooney, Marco Helbich is “OpenStreetMap in GISciene : Experiences, Research, and applications” contains 16 chapters on different aspects of OpenStreetMap in GIScience including 1) Data Management and Quality, 2) Social Context, 3) Network Modeling and … Continue reading OpenStreetMap in GIScience – Experiences, Research, and Applications
CityMetric |
Lee Kuan Yew’s Singapore in figures
CityMetric This weekend, Lee Kuan Yew, ex-prime minister and founding father of Singapore, died at the age of 91. His legacy is somewhat controversial: while he headed up the city-state’s transformation from a colonial port town into a rich and highly developed … |
CityMetric |
What does London look like from space?
CityMetric Maps are all very well and good – but seeing an actual photograph of a city from above, especially at night, is way cooler. You can see where lights, and human activity, cluster; you can see, effectively, what an astronaut sees when he looks down. |
Recently I was asked to speculate on what strides had been made in urban and transport modelling during the last 20 years and what did I think models would evolve to in the next 20. The current editorial in EPB … Continue reading →
Continue reading »My presentation on the “Conference on Advanced Spatial Modelling and Analysis” consisted in some thoughts regarding Big Spatial Data, and how to handle them in terms of modern technologies. It was great to see such a motivated crowd from all … Continue reading →
If you are wondering what to do between July 26 and August 1, this summer, you might be interested in this years Lipari School on Computational Social Science which is focusing on Algorithms, Data, and Models for Social and Urban Systems. What wil…
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If you are wondering what to do between July 26 and August 1, this summer, you might be interested in this years Lipari School on Computational Social Science which is focusing on Algorithms, Data, and Models for Social and Urban Systems. What wil…
Continue reading »There’s truly no injury in this, however the reliability of the facts provided on the net should really be tested first, since several sites provide even inappropriate info or half. Studying a guide entails plenty of interest, therefore a collection will be the great area for reading publications and exploring the entire world. Currently people, … Continue reading Essay Writer Machine →
Continue reading »TransportXtra |
New challenges – and opportunities – for transport modellers. What Modelling …
TransportXtra Keynote speaker Dr Ed Manley from the Centre for Advanced Spatial Analysis (CASA) at University College London, remains positive, if cautious. “Many of the recent applications of Big Transportation Data have failed to live up to the much-hyped … |
TransportXtra |
New challenges – and opportunities – for transport modellers. What Modelling …
TransportXtra Keynote speaker Dr Ed Manley from the Centre for Advanced Spatial Analysis (CASA) at University College London, remains positive, if cautious. “Many of the recent applications of Big Transportation Data have failed to live up to the much-hyped … |
TransportXtra |
New challenges – and opportunities – for transport modellers. What Modelling …
TransportXtra Keynote speaker Dr Ed Manley from the Centre for Advanced Spatial Analysis (CASA) at University College London, remains positive, if cautious. “Many of the recent applications of Big Transportation Data have failed to live up to the much-hyped … |
TransportXtra |
New challenges – and opportunities – for transport modellers. What Modelling …
TransportXtra Keynote speaker Dr Ed Manley from the Centre for Advanced Spatial Analysis (CASA) at University College London, remains positive, if cautious. “Many of the recent applications of Big Transportation Data have failed to live up to the much-hyped … |
TransportXtra |
New challenges – and opportunities – for transport modellers. What Modelling …
TransportXtra Keynote speaker Dr Ed Manley from the Centre for Advanced Spatial Analysis (CASA) at University College London, remains positive, if cautious. “Many of the recent applications of Big Transportation Data have failed to live up to the much-hyped … |
We really like this simple borough-by-borough cartogram […]
Continue reading »‘Get Hard’ Star Kevin Hart Reveals How Many Kids He Wants, & The Magic Number Is… BustleHe stars opposite Will Ferell in Get Hard , the raunchy comedy surrounding racial stereotypes from Etan Cohen. But while Kevin Hart’s sense of humor ma…
Continue reading »CityMetricThe firm behind that Nine Elms bridge design made of squares explains it was a …CityMetricA few weeks ago, we rounded up the 12 craziest designs proposed for a new bridge stretching between Nine Elms and Pimlico. Of the 74 designs submitted…
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A friend forwarded me this article which discusses this paper by researchers at the Yahoo Labs offices in Barcelona and the University of Turin. The basic idea is that they crowdsourced prettiness of places in central London, via either/or pairs photographs, to build up a field of attractiveness, then adjusted a router based on this … Continue reading Taking the Scenic Route – Quantitatively? →
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