The latest outputs from researchers, alumni and friends at the UCL Centre for Advanced Spatial Analysis (CASA).
While in the past we have written about how we can use agent-based models to capture basic patterns of life, and even developed a simulations, but until now we have never really demonstrated how we go about this. However, at the SIGSPATIAL 2024 c…
Continue reading »Just a quick post, In recently released Encyclopedia of Human Geography edited by Barney Warf we were asked to write a short chapter entitled “Agent-based Models and Geography” In the chapter we discuss how over the last several decades, age…
Continue reading »The eMOTIONAL Cities project has set out to understand how the natural and built environment can shape the feelings and emotions of those who experience it. At its core lies a Spatial Data Infrastructure (SDI) which combines a variety of … Continue reading
Continue reading »Vector tiles have been around for a while and they seem to combine the best of both worlds. They provide design flexibility, something we usually associate to vector data, while enabling fast delivery, like we generally see on raster services. … Continue reading
Continue reading »Quantifying community resilience especially after a disaster is an open research challenge. However, with the growth in mobility datasets such as SafeGraph we are being given new opportunities to study how communities rebound from disaster. &…
Continue reading »Often we are building geographically explicit agent-based models we spend a lot of time creating the synthetic population to instantiate our artificial world. We have tired to overcome this with creating methods to generate such populations (see this o…
Continue reading »Over the years we have developed several agent-based models that have explored various aspects of farming, ranging from farmers selling their land for development to that of water reuse. Keeping with this theme, we have a new paper with Kazi Ullah and …
Continue reading »In the past, this blog has explored several aspects of Detroit, such as how well its covered with Volunteered Street View Imagery or how through the use of agent-based models one can explore issues with urban shrinkage. Keeping up with the theme of shr…
Continue reading »While there has been a lot written about COVID-19 Angela Yao, Bin Jiang, Jukka Krisp, Xintao Liu, and Haosheng Huang and myself have just recently wrapped up a special issue in Environment and Planning B and how it can be studied through the lens…
Continue reading »While there has been a lot written about COVID-19 Angela Yao, Bin Jiang, Jukka Krisp, Xintao Liu, and Haosheng Huang and myself have just recently wrapped up a special issue in Environment and Planning B and how it can be studied through the lens…
Continue reading »At the end of May, the Citizen Science Association (CSA) celebrated its 10th year anniversary in its conference – C*Sci 2023, held at Arizona State University (ASU) in Tempe, Arizona. The conference (22-26 May) provided the opportunity to meet face-to-face colleagues in the area of citizen science, which I haven’t had a chance to talk … Continue reading C*Sci 2023 and the new name of the (US) Citizen Science Association
Continue reading »Anyone working with geospatial data, had probably encountered at some point the need for geocoding. The task of transforming an address (e.g.: a placename, city, postcode) into a pair of coordinates (e.g.: a point geometry) is called forward geocoding, while … Continue reading
Continue reading »Many visitors and readers to this site know that for a long time I have been involved with and developing agent-based models utilizing MASON. To this end, the other day Sean Luke posted a message to the MASON list-serve regarding new releases of MASON,…
Continue reading »Many visitors and readers to this site know that for a long time I have been involved with and developing agent-based models utilizing MASON. To this end, the other day Sean Luke posted a message to the MASON list-serve regarding new releases of MASON,…
Continue reading »A couple of months ago we had a post about Mesa-Geo but only a short one. Now we want to go into more detail as we (Boyu Wang, Vincent Hess and myself) just presented a paper about it at the 5th ACM SIGSPATIAL International Workshop on Geospatial Simul…
Continue reading »A couple of months ago we had a post about Mesa-Geo but only a short one. Now we want to go into more detail as we (Boyu Wang, Vincent Hess and myself) just presented a paper about it at the 5th ACM SIGSPATIAL International Workshop on Geospatial Simul…
Continue reading »Close on the heals of the last post on farming, we have a new paper co-authored with Kazi Masel entitled “Modelling Farmers’ Adoption Potential to New Bioenergy Crops: An Agent-based Approach” which was presented at the 2022 Computational Social Scienc…
Continue reading »Close on the heals of the last post on farming, we have a new paper co-authored with Kazi Masel entitled “Modelling Farmers’ Adoption Potential to New Bioenergy Crops: An Agent-based Approach” which was presented at the 2022 Computational Social Scienc…
Continue reading »We have just wrapped up project that created a simple agent-based simulation of urban life as part of DARPA’s Ground Truth Program. To this end we have just published a new paper entitled “Urban life: a model of people and places” published in C…
Continue reading »We have just wrapped up project that created a simple agent-based simulation of urban life as part of DARPA’s Ground Truth Program. To this end we have just published a new paper entitled “Urban life: a model of people and places” published in C…
Continue reading »With more and more people living in urban areas and the current COVID pandemic, human mobility within cities has changed. With this change there is a a growing debate about what it would take to make cities more accessible. For example, what wou…
Continue reading »With more and more people living in urban areas and the current COVID pandemic, human mobility within cities has changed. With this change there is a a growing debate about what it would take to make cities more accessible. For example, what wou…
Continue reading »As a reaction to the record high of fuel prices, the Portuguese government has updated the IVAucher program, to allow each citizen to recover 10 cents per each liter of fuel spent, up to a maximum of 5 EUR/month. This … Continue reading →
Continue reading »As a reaction to the record high of fuel prices, the Portuguese government has updated the IVAucher program, to allow each citizen to recover 10 cents per each liter of fuel spent, up to a maximum of 5 EUR/month. This … Continue reading →
Continue reading »As a reaction to the record high of fuel prices, the Portuguese government has updated the IVAucher program, to allow each citizen to recover 10 cents per each liter of fuel spent, up to a maximum of 5 EUR/month. This … Continue reading →
Continue reading »As a reaction to the record high of fuel prices, the Portuguese government has updated the IVAucher program, to allow each citizen to recover 10 cents per each liter of fuel spent, up to a maximum of 5 EUR/month. This … Continue reading →
Continue reading »The other day, Alison Heppenstall and myself were invited to give a keynote at the 2021 International Conference on Geospatial Information Sciences. Its not hard to guess what we chose to be the title of our talk: “GIS and Agent-Based-Modelling: Past, …
Continue reading »The other day, Alison Heppenstall and myself were invited to give a keynote at the 2021 International Conference on Geospatial Information Sciences. Its not hard to guess what we chose to be the title of our talk: “GIS and Agent-Based-Modelling: Past, …
Continue reading »Building upon a previous post where Mona Hemmati, Hussam Mahmoud, Bruce Ellingwood and myself presented a cellular automata model that was developed to understand the relationship between urbanization and flood risk, we have a new paper entitled “…
Continue reading »Building upon a previous post where Mona Hemmati, Hussam Mahmoud, Bruce Ellingwood and myself presented a cellular automata model that was developed to understand the relationship between urbanization and flood risk, we have a new paper entitled “…
Continue reading »In the past we have written about the challenges of validation and to some extent the calibration of agent-based models but never really went into much detail about the calibration process. To this end, Jeon-Young Kang, Alexander Michels, Jared Aldstad…
Continue reading »In the past we have written about the challenges of validation and to some extent the calibration of agent-based models but never really went into much detail about the calibration process. To this end, Jeon-Young Kang, Alexander Michels, Jared Aldstad…
Continue reading »Almost a year ago, I heard the term DevRel for the first time when Sara Safavi, from Planet, gave a talk at CodeOp and used that word to describe her new role. I knew Sara as a developer, like myself, … Continue reading →
Continue reading »Almost a year ago, I heard the term DevRel for the first time when Sara Safavi, from Planet gave a talk at CodeOp and use that word to describe her knew role. I knew Sara as a developer, like myself, … Continue reading →
Continue reading »Building on our work on synthetic populations, Na (Richard) Jiang, Bill Kennedy, Hamdi Kavak, and myself have a new paper which was presented at the 2021 Annual Modeling and Simulation (ANNSIM) Conference entitled “Generation of Reusable Synthetic Popu…
Continue reading »Building on our work on synthetic populations, Na (Richard) Jiang, Bill Kennedy, Hamdi Kavak, and myself have a new paper which was presented at the 2021 Annual Modeling and Simulation (ANNSIM) Conference entitled “Generation of Reusable Synthetic Popu…
Continue reading »Running large scale spatial agent-based models is often a computational challenge. To address this challenge, at the upcoming International Conference on Social Computing, Behavioral-Cultural Modeling and Prediction and Behavior Representation in Mode…
Continue reading »Running large scale spatial agent-based models is often a computational challenge. To address this challenge, at the upcoming International Conference on Social Computing, Behavioral-Cultural Modeling and Prediction and Behavior Representation in Mode…
Continue reading »Tuning back to our work on geosocial analysis we (Xiaoyi Yuan, Ron Mahabir, Arie Croitoru and myself) recently had a paper published in GeoJournal entitled “Achieving Situational Awareness of Drug Cartels with Geolocated Social Media.” The o…
Continue reading »Tuning back to our work on geosocial analysis we (Xiaoyi Yuan, Ron Mahabir, Arie Croitoru and myself) recently had a paper published in GeoJournal entitled “Achieving Situational Awareness of Drug Cartels with Geolocated Social Media.” The o…
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