Fabio Lamanna

Advancing geocomputation through open-source software! 🗺️

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#rstats #rspatial #geopython #gecompx

PLOS ONE: Unveiling connectivity patterns of railway timetables through complex network theory and Infomap clustering
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0328681

New Method Is the Fastest Way To Find the Best Routes | Quanta Magazine A canonical problem in computer science is to find the shortest route to every point in a network. A new approach beats the classic algorithm taught in textbooks.

For the first time in four decades, a new algorithm has improved upon the speed limit for calculating the fastest route to every point in a network. @benbenbrubaker.bsky.social‬ reports: www.quantamagazine.org/new-method-i...

How to compare railway timetables in function of connectivity and travel time performance. Given two railway timetables, which one is the best in terms of connectivity, accessibility and travel time? Adding fast services potentially reduce travel times on certains O/D couples, but at the sa...

link.growkudos.com/1eaxhjjvp4w

🌐 The #CCS25 Program at a Glance is now online! Get a first look at how the conference will unfold.
🔜 Stay tuned for more updates and detailed information coming soon!
🔗 ccs25.cssociety.org/programme-at...

Human Mobility in Epidemic Modeling Human mobility forms the backbone of contact patterns through which infectious diseases propagate, fundamentally shaping the spatio-temporal dynamics of epidemics and pandemics. While traditional mode...

Human Mobility in Epidemic Modeling
www.arxiv.org/abs/2507.22799 great work by @pholme.bsky.social and collaborators

Signs we’ve lost: TXL4EVA.

Here's an ad that Google Opal created for #rstats #spanishoddata ropenspain.github.io/spanishoddata/ The flows map in the end is not so good, but the overall idea of the package is represented quite well. Quickly get OD flows from Spanish big open human mobility data.

banner advertising key changes in spanishoddata 0.2.0

🚀 𝘀𝗽𝗮𝗻𝗶𝘀𝗵𝗼𝗱𝗱𝗮𝘁𝗮 0.2.0 is here. As before, you are getting nicely formatted Open Mobility Big Data released by the Spanish Ministry of Transport and Sustainable Mobility (MITMS) in a reproducible way. #rstats #opendata #HumanMobility #spanishoddata full changelog: ropenspain.github.io/spanishoddat...

🌐 We are glad to host 27 satellites at #CCS25, covering diverse and cutting-edge topics in complex systems science!
🔗Explore the full list here:
ccs25.cssociety.org/satellites-l...

Unveiling connectivity patterns of railway timetables through complex network theory and Infomap clustering This study introduces a novel framework for analysing railway timetable connectivity through complex network theory and the Infomap clustering algorithm. By transforming timetable data into network re...

New paper out! We explore connectivity patterns of railway timetables with #networkscience and #Infomap clustering, enjoy! dx.plos.org/10.1371/jour...

📢 Happy to announce the next keynote speaker for UrbanSys at CCS2025
🏙️ Lin Chen
Researcher at Department of Computer Science and Engineering at The Hong Kong University of Science and Technology
🔗 linchen-65.github.io/linchen/
Check our final line-up!
🔗 urban-sys-net.weebly.com/keynote-spea...

When dialects collide: how socioeconomic mixing affects language use - EPJ Data Science The socioeconomic background of people and how they use standard forms of language are not independent, as demonstrated in various sociolinguistic studies. However, the extent to which these correlati...

When dialects collide: how socioeconomic mixing affects language use epjdatascience.springeropen.com/articles/10....

(comic) Delayed Transmission

(comic) Just checking in

🎂🎉 Mille puntate di #Morning (oggi ne compio 101), and counting. Grazie! 🗞️🎙️
@francescocosta.bsky.social @lucamisculin.bsky.social @sofri.it @ilpost.it

🎁 www.ilpost.it/podcasts/mor... 🎧

📢 Happy to announce the next keynote speaker for UrbanSys @ccs2025.bsky.social
🏙️ Markus Schläpfer
Assistant Professor of Civil Engineering and Engineering Mechanics at Columbia University, Lead of the Urban Systems Engineering Lab
Do not miss this edition!
🔗 urban-sys-net.weebly.com/keynote-spea...

The official OSMnx reference paper was recently published open-access by Geographical Analysis: doi.org/10.1111/gean... Years in the making, it describes what OSMnx does and why it does it that way. But wait, there's more! I discuss many lessons learned in geospatial software development, including:

Red book cover reading Compendium of Urban Complexity. Diego Rybski Editor. Springer

Our chapter on Urban #mobility is finally published, in the great Compendium of Urban Complexity!
https://link.springer.com/chapter/10.1007/978-3-031-82666-5_4
pdf: http://michael.szell.net/downloads/alessandretti2025um.pdf

We explore the topic from […]

[Original post on datasci.social]

Today’s Wordflower bouquet from Wordflowers: A Visual History of the Cure’s Words is… unfortunately reflecting current events…violence. 25% of net proceeds from each book sale goes to NAMI, a grassroots organization dedicated to building better lives for people affected by mental illness. #thecure

📆 Early registration for #CCS25 closes on July 20!
One month left to secure your spot at the conference and benefit from reduced fees!
Join researchers from around the world at the premier conference on complex systems.
🔗 Register here: ccs25.cssociety.org/registration/

(comic) AI Chronicles: State-of-the-art Output

Designing transit routes based on vehicle routing behavior determined through location-based services data - EPJ Data Science The disparity between transit agency travel predictions and the unpredictable nature of real-world travel behavior contributes to inefficiencies within the transit system. To address this challenge, w...

Designing transit routes based on vehicle routing behavior determined through location-based services data epjdatascience.springeropen.com/articles/10....

The Core of Fermat’s Last Theorem Just Got Superpowered | Quanta Magazine By extending the scope of the key insight behind Fermat’s Last Theorem, four mathematicians have made great strides toward building a “grand unified theory” of math.

www.quantamagazine.org/the-core-of-...

A global urban road network self-adaptive simplification workflow from traffic to spatial representation - Scientific Data Scientific Data - A global urban road network self-adaptive simplification workflow from traffic to spatial representation

A global urban road network self-adaptive simplification workflow from traffic to spatial representation
https://www.nature.com/articles/s41597-025-05164-9

Data for 35 cities. Looks similar to the neatnet method https://martinfleischmann.net/simplification-of-street-networks/ @martinfleis

Just sent our contribution 🚂 to #urbansys Satellite at @css-conference.bsky.social in Siena! 🤞 See you there! @mattiamazzoli.bsky.social

Today at #Trenolab #Railway seminar in #Gorizia! Trenolab.com

QGIS User Conference 2025 · QGIS UC Website

Less than two weeks left until the #QGIS User Conference 2025

We're excited to share with you the full conference program of talks and workshops, followed by the contributor meeting https://uc2025.qgis.org/schedule/

#osgeo #qgisuc2025 #QGISUC25

Fabio Lamanna, Michele Prisma, Giorgio Medeossi: Unveiling connectivity patterns of railway timetables through complex network theory and Infomap clustering https://arxiv.org/abs/2504.09214 https://arxiv.org/pdf/2504.09214 https://arxiv.org/html/2504.09214