GeoGosha
رفتن به کانال در Telegram
ex-R&D at ITMO @kontsevik Topics: - AI-driven urban development - research work - complex networks https://www.linkedin.com/in/george-kontsevik/
نمایش بیشترکشور مشخص نشده استدسته بندی مشخص نشده است
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مشترکین
اطلاعاتی وجود ندارد24 ساعت
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+230 روز
آرشیو پست ها
294
Repost from N/a
VoxCity: A seamless framework for open geospatial data integration, grid-based semantic 3D city model generation, and urban environment simulation
новая питон библиотека для автосборки воксельной 3д модели города и запуска базовых симмуляций. поиграться можно в гугл коллабе — нужно только дать свой токен Google Earth Engine и прямо в браузере крутить все слои в 3д: смотреть солнечную радиацию, индексы видимости, суммарную инсоляция и тд. экспорт в OBJ, VOX или ENVI-met тоже есть
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https://doi.org/10.1016/j.compenvurbsys.2025.102366
code link
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Urban modeling for streets using vector cellular automata: Framework and its application in Beijing
https://www.beijingcitylab.com/projects/52
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https://cadence.cityscience.com
Cadence makes it easy to design, build and publish interactive maps
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Relationship to 2015 pandana
"The original pandana was written during my graduate research with Paul Waddell at UC Berkeley. It leverages a huge C++ library for Contraction Hierachies which I eventually realized was useful to the routing queries but not useful to the aggregation queries. 10 years later, I finally got around to rewriting the library to not use C++ and only do the aggregations.
The "get nodes within X meters of each origin node in the network" part is written in numba. The rest is vanilla pandas. This should greatly ease extension and maintenance of the library since it's less than 1000 lines of code so far and much easier to deploy since it doesn't have to be compiled.
This version has feature parity with the 2015 version for the aggregations: it supports sum, mean, median, standard deviation, min, and max with no decay, linear decay and exponential decay. This version has weighted mean, weighted median, and weighted standard deviation which the previous version did not have. Additional aggregations and decays should be quite easy to add."
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Repost from N/a
Who Owns Massachusetts
вчера нашел Spatial Analysis & Action — лабу которая уже несколько лет исследует распределение собственности в массачусетсе. такие данные обычно надо добывать с болью: владельцы скрывают активы через несколько компаний, придумывают схемы уклонения от ответственности и тд. лаборатория использует пространственный анализ, NLP и анализ социальных сетей чтобы восстановить и визуализировать эти данные для ресерчеров и полиси мейкеров.
у них мало публикаций но есть гитхаб на котором можно найти детали проекта и интерактивную карту
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github.com/mit-spatial-action
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Modeling the spatial growth of cities
The growth of cities has traditionally been studied from a population perspective, while urban sprawl—its spatial growth—has often been approached qualitatively. However, characterizing and modeling this spatial expansion is crucial, particularly given its parallels with surface growth extensively studied in physics. Despite these similarities, approaches to urban sprawl modeling are fragmented and scattered across various disciplines and contexts. In this review, we provide a comprehensive overview of the mathematical modeling of this complex phenomenon. We discuss the key challenges hindering progress and examine models inspired by statistical physics, economics and geography, and theoretical ecology. Finally, we highlight critical directions for future research in this interdisciplinary field.
https://arxiv.org/pdf/2510.03045
