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Luca Pappalardo

@lucapappalardo.bsky.social
387 followers 172 following 21 posts

Researcher at CNR | Professor at Scuola Normale Superiore | #DataScience | #AI | #HumanMobility | #ComputationalSocialScience

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Luca Pappalardo @lucapappalardo.bsky.social · 18/08/2026
📢🔥 Latest @NatureComms paper! We show that navigation services have an unexpected collective effect: as adoption increases, they concentrate traffic onto fewer roads, reducing route diversity by up to 14%. Paper: www.nature.com/articles/s41...
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Luca Pappalardo @lucapappalardo.bsky.social · 28/07/2026
How do we stop model collapse in AI autophagy? In our ACM TIST paper, we show how perplexity-filtering mitigates model collapse by filtering out low-quality synthetic data. 📄 Paper here: dl.acm.org/doi/10.1145/... @danigambit.bsky.social
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Luca Pappalardo @lucapappalardo.bsky.social · 04/06/2026
In Boston for @netsciconf.bsky.social. See you on Friday 11:15 for session PS 3.6 Mobility, Spatial & Urban Networks 3 The urban impact of algorithmic navigation D. Pedreschi lnkd.in/dAG-v4PF The urban impact of AI: modelling feedback loops in location-based recsys L. Pappalardo lnkd.in/dR4JjCCQ
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Springer @springer.springernature.com · 06/02/2026
This #OpenAccess study from 'Machine Learning' represents the first attempt to study how the human-AI feedback loop reshapes human mobility patterns. bit.ly/4c64FvV @gmauro10.bsky.social @lucapappalardo.bsky.social #AI #ML
Machine Learning
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Giovanni Mauro @gmauro10.bsky.social · 09/01/2026
📢 New paper! We study urban location recommenders and their feedback with human mobility. Simulating this loop reveals a paradox: people explore more individually, yet city visits and encounters concentrate. Cities coevolve with AI, and inequality can grow. 📄 link.springer.com/article/10.1...
link.springer.com
Client Challenge
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Luca Pappalardo @lucapappalardo.bsky.social · 29/11/2025
Delighted to share that my group at CNR won a FIS Consolidator grant (the “Italian ERC”) to study City-AI Coevolution. We’ll investigate how the human-AI feedback loop shapes human mobility and urban life.
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Giovanni Mauro @gmauro10.bsky.social · 17/10/2025
The first episode of our gentrification saga is finally open access! www.worldscientific.com/doi/10.1142/... @nicopedre.bsky.social @lucapappalardo.bsky.social
worldscientific.com
Advances in Complex Systems
ACS is an international, peer-reviewed journal, uniquely publishing in multidisciplinary approaches, either empirical or theoretical, to the study of complex systems.
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Luca Pappalardo @lucapappalardo.bsky.social · 01/09/2025
Three lightning talks by KDD Lab of Pisa at @css-conference.bsky.social in Siena, in a few minutes in the plenary room!
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Luca Pappalardo @lucapappalardo.bsky.social · 23/07/2025
🚦 How diverse are your city’s routes? Today at @ic2s2.bsky.social (lightning talks), @gcornacchia.bsky.social presents: “Route Diversification in Road Networks”. We introduce DiverCity, a metric to quantify how traffic can spread across alternative routes. #HumanMobility #Routing #ic2s2
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Luca Pappalardo @lucapappalardo.bsky.social · 18/07/2025
How do recommender systems shape our behavior? 📄 We review 144 studies across domains, from social media to GenAI. 🧭 With the EU Digital Services Act, data access is now possible. Our survey offers a guide to studying recommender-driven risks. 🔗 arxiv.org/abs/2407.01630
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Luca Pappalardo @lucapappalardo.bsky.social · 19/06/2025
Honored to host Prof. Marta González at our KDD Lab in Pisa! Her talk on the Science of Cities at Scuola Normale Superiore (@sns.it) was deeply inspiring. A true privilege to meet the researcher who sparked my passion for human mobility. #UrbanScience #Mobility #Cities
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Giovanni Mauro @gmauro10.bsky.social · 10/06/2025
Great turnout for our workshop on the effects of Recommender Systems on social environments @hhaiconference.bsky.social
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Giovanni Mauro @gmauro10.bsky.social · 09/06/2025
Back in action with the Gentrification crew! @nicopedre.bsky.social @lucapappalardo.bsky.social Truly honoured to receive this award at @netsciconf.bsky.social in Maastricht. More updates coming soon!
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Alex "Sandy" Pentland @alex-pentland.bsky.social · 07/05/2025
The full UN report is available here: hdr.undp.org/content/huma... Our paper is here: sciencedirect.com/science/arti...
hdr.undp.org
Human Development Report 2025 | Human Development Reports
The 2025 Human Development Report explores the implications of artificial intelligence for human development and the choices we can make to ensure that it enhances human capabilities. Rather than atte...
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Luca Pappalardo @lucapappalardo.bsky.social · 07/05/2025
Excited that our paper "Human-AI Coevolution" is cited in the latest UN Human Development Report: "A Matter of Choice: People and Possibilities in the Age of AI"! 🌍🤖 📘 UN report here: hdr.undp.org/content/huma... 📘 Paper here: www.sciencedirect.com/science/arti...
hdr.undp.org
Human Development Report 2025 | Human Development Reports
The 2025 Human Development Report explores the implications of artificial intelligence for human development and the choices we can make to ensure that it enhances human capabilities. Rather than atte...
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Luca Pappalardo @lucapappalardo.bsky.social · 24/04/2025
Latest work on human mobility! A great collaboration with colleagues at FBK. Look at the paper on @pnas.org 👇
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Riccardo Gallotti @ricgallotti.bsky.social · 24/04/2025
I just came across a paper full of hallucinated citations. www.nature.com/articles/s41... I have four urgent questions: 1) Which version of ChatGPT wrote this? 2) Which version of ChatGPT peer-reviewed it? 3) How many of these slip through “reputable” journals every day? 4) Are we being trolled?
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Luca Pappalardo @lucapappalardo.bsky.social · 11/04/2025
The human-AI feedback loop strikes back! This time in the urban environment. Look at our latest work 👇
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Luca Pappalardo @lucapappalardo.bsky.social · 11/02/2025
🚀 Dino Pedreschi parla di coevoluzione tra umani ed AI a War Room InnovAction con @lucadebiase.bsky.social, in occasione dell’uscita del nostro articolo "Human-AI Coevolution" su Artificial Intelligence. 📺 Guarda l’intervista: 👉 www.youtube.com/watch?v=ARif... #AI #HumanAI #Coevolution
youtube.com
War Room InnovAction - Luca De Biase dialoga con Dino Pedreschi
YouTube video by InConTraSrl
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Dani Gambit @danigambit.bsky.social · 04/02/2025
Preprint v2 is out! On @arxiv-cs-cl.bsky.social our update on #ModelCollapse of #AI #LLMs with new characterizations based on #Semantic #Networks and #NextToken predictions, new insights about the collapse effect and possible mitigation methods. @lucapappalardo.bsky.social arxiv.org/abs/2410.12341
arxiv.org
Characterizing Model Collapse in Large Language Models Using Semantic Networks and Next-Token Probability
As synthetic content increasingly infiltrates the web, generative AI models may experience an autophagy process, where they are fine-tuned using their own outputs. This autophagy could lead to a pheno...
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HHAI 2025 @hhaiconference.bsky.social · 24/01/2025
🚨#callforpapers🚨 Last day to submit your work for the Hybrid Human-Artificial Intelligence Conference. 👉 Abstract: today 👉 Full paper: January 31, 2025 Join us at #HHAI2025 in Pisa, June 9-13! 🌐 hhai-conference.org/2025/cfp/ #AI #conference #ML #AIEthics
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HHAI 2025 @hhaiconference.bsky.social · 22/01/2025
📢 𝗦𝗽𝗿𝗲𝗮𝗱 𝘁𝗵𝗲 𝘄𝗼𝗿𝗱: 𝗱𝗲𝗮𝗱𝗹𝗶𝗻𝗲 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵𝗶𝗻𝗴! 📢 You have only until 𝗙𝗿𝗶𝗱𝗮𝘆, 𝗝𝗮𝗻𝘂𝗮𝗿𝘆 𝟮𝟰 to submit your paper to HHAI 2025. Find all the details here and apply now 👉 hhai-conference.org/2025/cfp/ ☀️ HHAI 2025 will be held on June 9–13, 2025, in Pisa #artificialintelligence
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Luca Pappalardo @lucapappalardo.bsky.social · 12/12/2024
The KDD Lab Workshop 2024 just started in San Miniato, Italy. Two days for sharing the last achievements and new horizons in research...
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Luca Pappalardo @lucapappalardo.bsky.social · 28/11/2024
Big thanks to @ric-dicle.bsky.social for an outstanding lesson on unlocking the secrets of human mobility with digital data in our #GeospatialAnalytics course at the University of Pisa. Inspiring and eye-opening! 🌍📊🚶‍♂️ #HumanMobility
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Ronaldo Menezes 🦋 @ronaldomenezes.bsky.social · 25/11/2024
Thanks for tue amazing event in Pisa. I’m back home but looking forward to the next steps. Special thanks to @adtony.bsky.social @ric-dicle.bsky.social and @lucapappalardo.bsky.social!
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Luca Pappalardo @lucapappalardo.bsky.social · 25/11/2024
Interesting article on @forbes.com on Human-AI coevolution, covering our recent publication on AIJ 👉 www.sciencedirect.com/science/arti... www.forbes.com/sites/lancee...
forbes.com
Evolving Together: Human-AI Coevolution Is Said To Be Coming Whether Humanity Likes It Or Not
A trending claim is that human-AI coevolution is underway and will expand. AI shapes humans, humans shape AI. Good or bad? Here's the inside scoop.
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Luca Pappalardo @lucapappalardo.bsky.social · 23/11/2024
What an incredible experience at the European Mobility Symposium! Huge thanks to @ric-dicle.bsky.social for co-organizing and to all the participants for the enriching discussions. See you at the next edition! #EMoS #HumanMobility
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Riccardo Di Clemente @riccardodiclemente.com · 22/11/2024
Just started the second day of the European Mobility Symposium here in Pisa! Excited to discuss new view on human mobility! Hosted together @lucapappalardo.bsky.social @connectionslab.bsky.social @nunetsi.bsky.social link here ems2024pisa.github.io/europeanmobi...
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Ronaldo Menezes 🦋 @ronaldomenezes.bsky.social · 21/11/2024
Amazing first day here at the European Mobility Symposium. Really happy that the format designed encouraged engagement and discussions. Thanks to @lucapappalardo.bsky.social @gmauro10.bsky.social @ric-dicle.bsky.social @adtony.bsky.social ems2024pisa.github.io/europeanmobi...
ems2024pisa.github.io
European Mobility Symposium
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Ronaldo Menezes 🦋 @ronaldomenezes.bsky.social · 21/11/2024
go.bsky.app/PPpuajB
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Riccardo Di Clemente @riccardodiclemente.com · 21/11/2024
Glad to kick off the European Mobility symposium with @lucapappalardo.bsky.social in Pisa! Looking forward to interesting discussions on urban mobility! @connectionslab.bsky.social by @nunetsi.bsky.social more infos ems2024pisa.github.io/europeanmobi...
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NetScience @netscience.bsky.social · 19/11/2024
Dynamic models of gentrification arxiv.org/abs/2410.18004
arxiv.org
Dynamic models of gentrification
The phenomenon of gentrification of an urban area is characterized by the displacement of lower-income residents due to rising living costs and an influx of wealthier individuals. This study presents ...
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Giovanni Mauro @gmauro10.bsky.social · 19/11/2024
Hey blueskiers! In case you missed it, we just uploaded the arXiv for our latest work! This project has been such an amazing journey, thanks to the brilliant collaboration with @nicopedre.bsky.social @lucapappalardo.bsky.social and Renaud Lambiotte. Give it a look :) arxiv.org/abs/2410.18004
arxiv.org
Dynamic models of gentrification
The phenomenon of gentrification of an urban area is characterized by the displacement of lower-income residents due to rising living costs and an influx of wealthier individuals. This study presents ...
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Network Science Institute @nunetsi.bsky.social · 18/11/2024
A new paper introduces human-AI coevolution as the cornerstone for a new field of study at the intersection between AI and complexity science. NU and NetSI co-authors: Ricardo Baez-Yates @eliassi.bsky.social Albert László Barabási & Alessandro Vespignani www.sciencedirect.com/science/arti...
sciencedirect.com
Human-AI coevolution
Human-AI coevolution, defined as a process in which humans and AI algorithms continuously influence each other, increasingly characterises our society…
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Giulio Rossetti @giuliorossetti.bsky.social · 17/11/2024
The call for Workshop and Tutorial for HHAI2025 is out 📆 Proposal submission deadline: January 31st, 2025! We welcome original ideas on Hybrid Human-Artificial Intelligence: we'll discuss them together in Pisa, Italy, in June 2025! #AI #conference #HHAI25 hhai-conference.org/2025/worksho...
hhai-conference.org
Call for Workshop and Tutorial Proposals – HHAI2025
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Luca Pappalardo @lucapappalardo.bsky.social · 18/11/2024
Our paper on Human-AI coevolution is now published on the Artificial Intelligence journal! At the crossroads of #AI and #complexity to better understand how humans and AIs influence each other on online platforms sciencedirect.com/science/arti... Big thanks to all coauthors!
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Luca Pappalardo @lucapappalardo.bsky.social · 15/11/2024
𝗧𝗵𝗲 𝗰𝗮𝗹𝗹 𝗳𝗼𝗿 𝗽𝗮𝗽𝗲𝗿𝘀 𝗳𝗼𝗿 𝗛𝗛𝗔𝗜𝟮𝟬𝟮𝟱 𝗶𝘀 𝗼𝗽𝗲𝗻! 📆 𝗔𝗯𝘀𝘁𝗿𝗮𝗰𝘁 𝘀𝘂𝗯𝗺𝗶𝘀𝘀𝗶𝗼𝗻 𝗱𝗲𝗮𝗱𝗹𝗶𝗻𝗲: 𝗝𝗮𝗻𝘂𝗮𝗿𝘆 𝟭𝟳𝘁𝗵, 𝟮𝟬𝟮𝟱 We welcome original ideas on Hybrid Human-Artificial Intelligence: we'll discuss them together in Pisa, Italy, in June 2025! #artificialintelligence #conference #HHAI25 hhai-conference.org/2025/
hhai-conference.org
HHAI2025 – HHAI2025
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