Egor Kotov 🌐🏃‍♂️🚊🚋🚙

@ekotov.pro

1764 Followers 847 Following

Spatial Data Scientist, Postdoctoral Researcher #HumanMobility #geospatial @tu-dortmund.de, @imprs-phds.bsky.social, @upf.edu #rspatial #rstats dev of #rstats github.com/rOpenSpain/spanishoddata 🌐: www.ekotov.pro datasci.social/@EgorKotov

duckspatial logo
demo of OSRM GUI features such as routing, isochrones and travelling saleseman
workflow form OSM data via osrm.backend R package to osrm and to final image, instead of using osrm-backend manually in terminal
Super generalized boundaries of Moscow from World Bank are compared to the "draw the rest of the owl" joke.
incorrect boundaries
Call for papers for the next years #MobileTartu2026 is out now. Conference is on June 8-10 2026 (PhD school on June 7), submission deadline is 16 Janurary 2026. https://mobiletartu.ut.ee/call-for-papers/ #gischat #HumanMobility #unitartu
workflow form OSM data via osrm.backend R package to osrm and to final image, instead of using osrm-backend manually in terminal
Toggle left and right panes in Zotero with keyboard shortcuts
tutorial screenshot: flow map shows migration of scientists on a world map
ScreenDear E.A. Koto, Hope you are well. We are contacting you because your expertise in areas related to linguistics (if any) makes you an ideal candidate to review the manuscript entitled "I. submitted to@he Forum for Linguistic Studies (FLS). §)e manuscript summary is provided below for YSummgierence: [This study examines the morphological patterns of three languages— I Focusing on bound morphemes, both derivational and inflectional, the research adopts a Forum for Linguistic Studies COUNTRY SUBJECT AREA AND CATEGORY Singapore Social Sciences [Education Linguistics and Language === institutions in Singapore SJR 2024 PUBLICATION TYPE 0.234 Q2 Journals
Java Environments for R Projects New in dev version: - full Linux support - set env to build rJava from source
Animation shows point and click interface for r5 network. User selects start and end locations on the map, the route is calculated and displayed on the map, and the route legs are presented below in a table.
gridmaker: Create Standardized Spatial Grids Transforming an sf object into a GISCO/INSPIRE-compliant grid sf boundary object GISCO/INSPIRE standardized grid or bounding box with IDs in form of CRS 3035 RES 1000m N3016000 E4032000
Benchmark scatter plot comparing areal-weighted interpolation runtimes (seconds) vs. peak memory use (MB) for three R package backends. {ducksf} with DuckDB backend is fastest (8.3s, 240MB, bottom left, green). {geosareal} with GEOS backend is mid-range (35.2s, 623MB, center, blue). {areal} with sf backend is slowest (230.7s, 1546MB, top right, orange). Ducksf logo in top-left corner.
Screenshot of a 3×13 tibble in R showing benchmark results. The “expression” column lists sf/areal, ducksf_views, and ducksf_views_arrow. Minimum times are 51.9 seconds, 10.5 seconds, and 10.4 seconds respectively. Median times are 1.11 minutes, 12.37 seconds, and 13.37 seconds. Iterations per second are 0.0161, 0.0650, and 0.0790. Memory allocations are 1.56 GB, 1.07 GB, and 1.13 GB.
Screenshot of a GitHub repository named ‘ducksf’ by user e-kotov. It’s public, has 4 stars, 0 forks, and contains only a single .gitignore file on the main branch.
Uncertainty map
Uncertainty map
banner advertising key changes in spanishoddata 0.2.0
Banner advertising the talk at #geomobBER on June 4th 2025. Talk title: "Massive open mobile phone derived human mobility data is coming to the EU"
Sequence of slides demonstrating how DuckDB works when doing out of core processing in different scenarios. *Logos on the slides are the property of their respective owners*
rJavaEnv R package logo and headline: "Java Environments for R projects"
rdocdump R package logo
Screenshot of pull requests fixing issues in rJavaEnv
spanishoddata R package to access national high-quality and open-access datasets on movement patterns derived from mobile telephone datasets in Spain
animation of stacked map layers
bumps in daily downloads of r5r and rJavaEnv R packages in January 2025
spanishoddata R package and an impression of how progress bar will look like
Screenshot showing that spanishoddata is linked to from the website of the Ministry of Transport and Sustainable Mobility of Spain as one of the alternative ways to access the data.
Speed comparison shows how new function in spanishoddata gets the daily municipal flows in 3-4 seconds, while the older approach with downloading full day data and aggregation takes about 1 minute.
Stupid notification from Threads
Screenshot shows a cam person account following notification
mosquito alert website and mobile app, track tiger mosquitoes across the world
meme where a person is happy when they use rJavaEnv to install Java for reproducibility with their Java-dependent R packages
Interactive map shows the impact of DANA on possible displacement from the usual residence in Spain. Comparing the business as usual (Oct 2023) with the latest open mobility data (2024-10-31) from Ministerio de Transportes y Movilidad Sostenible and Nommon. For each location the map shows the percentage of people who had to spend the night in a different place. The most affected area is in Valencia.
Interactive map shows the impact of DANA on displacement from the usual residence in Spain. Comparing the business as usual (Oct 2023) with the latest open mobility data (2024-10-31) from Ministerio de Transportes y Movilidad Sostenible and Nommon. For each location the map shows the percentage of people who had to spend the night in a different place. The most affected area is in Valencia.
17 million users on Bluesky and counting
warning about changes in Google Location History storage location
R code that recommends to use rJavaEnv
globe showing tiger mosquito and other mosquito reports from around the world
Drop in mobility because of DANA in Valencia. 13:00-14:00 time interval compared between Oct 28 and Oct 30 2024.
A hand drawn logo of spanishoddata R package
AI generated map of human mobility in Spain. This image is produced with DALL-E 3
Best poster award from Urban Transitions 2024 conference