Yamir Moreno
@ymoreno.bsky.social
Professor of Physics, Dept Theoretical Physics, University of Zaragoza. Networks & Complexity. Director Institute BIFI, Cosnet and Nectunt Labs. Fellow APS and NSS. Past President of NetSci Soc and Complex Systems Society. Research Director at Centai.
they can amplify uncooperative behavior, and iv) overall, the interplay between network topology and reputation shapes whether cooperation thrives or collapses.
Kudos to my co-authors Chunpeng Du, Fei Fang, Alfonso de Miguel-Arribas, Yikang Lu, Yanan Wang, and Xin Pan. (4/4)
Kudos to my co-authors Chunpeng Du, Fei Fang, Alfonso de Miguel-Arribas, Yikang Lu, Yanan Wang, and Xin Pan. (4/4)
December 1, 2025 at 12:05 PM
they can amplify uncooperative behavior, and iv) overall, the interplay between network topology and reputation shapes whether cooperation thrives or collapses.
Kudos to my co-authors Chunpeng Du, Fei Fang, Alfonso de Miguel-Arribas, Yikang Lu, Yanan Wang, and Xin Pan. (4/4)
Kudos to my co-authors Chunpeng Du, Fei Fang, Alfonso de Miguel-Arribas, Yikang Lu, Yanan Wang, and Xin Pan. (4/4)
ii) direct reputation matters the most: timely, first-hand information helps individuals identify good partners & avoid exploitative ones; iii) group structure plays a double role: in supportive environments, higher-order interactions reinforce cooperation; in competitive ones 3/
December 1, 2025 at 12:05 PM
ii) direct reputation matters the most: timely, first-hand information helps individuals identify good partners & avoid exploitative ones; iii) group structure plays a double role: in supportive environments, higher-order interactions reinforce cooperation; in competitive ones 3/
Reputation isn't assigned to individuals alone, but to relationships -capturing both direct experience (“how you behaved with me”) & indirect information (“what others say about you”). We show that i) reputation can strongly boost cooperation, even in difficult social dilemmas 2/
December 1, 2025 at 12:05 PM
Reputation isn't assigned to individuals alone, but to relationships -capturing both direct experience (“how you behaved with me”) & indirect information (“what others say about you”). We show that i) reputation can strongly boost cooperation, even in difficult social dilemmas 2/
New paper out, “Edge-based reputation promotes cooperation in simplicial complexes,” (arxiv.org/abs/2511.22234). Here, we take a step forward by introducing a new reputation mechanism that operates in group contexts, not just pairwise ones. (1/4)
December 1, 2025 at 12:05 PM
New paper out, “Edge-based reputation promotes cooperation in simplicial complexes,” (arxiv.org/abs/2511.22234). Here, we take a step forward by introducing a new reputation mechanism that operates in group contexts, not just pairwise ones. (1/4)
Cosnet Lab Nov 2025, welcoming its new members.
November 2, 2025 at 11:10 AM
Cosnet Lab Nov 2025, welcoming its new members.
Our findings underscore the crucial role of interlayer link directionality in shaping the emergent behavior of multiplex systems, with potential implications for the design and control of such systems. Kudos to my co-authors: Mateo Bouchet, Alex Tejedor and Xiangrong Wang. (4/4)
October 28, 2025 at 11:43 AM
Our findings underscore the crucial role of interlayer link directionality in shaping the emergent behavior of multiplex systems, with potential implications for the design and control of such systems. Kudos to my co-authors: Mateo Bouchet, Alex Tejedor and Xiangrong Wang. (4/4)
In this regime, diffusion becomes dynamically arrested due to interlayer asymmetry, fragmenting the system into disconnected dynamical components & preventing it from converging to equilibrium. We also show that this transition can occur in synthetic and real-world systems 3/4
October 28, 2025 at 11:43 AM
In this regime, diffusion becomes dynamically arrested due to interlayer asymmetry, fragmenting the system into disconnected dynamical components & preventing it from converging to equilibrium. We also show that this transition can occur in synthetic and real-world systems 3/4
Previous works showed that directionality within layers can enhance diffusion (e.g., superdiffusion & prime regime). Now, we demonstrate analytically and numerically that asymmetric interlayer links can both reproduce these regimes and, remarkably, lead to a novel phenomenon. 2/4
October 28, 2025 at 11:43 AM
Previous works showed that directionality within layers can enhance diffusion (e.g., superdiffusion & prime regime). Now, we demonstrate analytically and numerically that asymmetric interlayer links can both reproduce these regimes and, remarkably, lead to a novel phenomenon. 2/4
Now out: "Directionality-induced jamming in multiplex networks" (arxiv.org/abs/2510.22634). We uncover a previously unreported diffusion regime, termed directionality-induced jamming, in multiplex networks that arises solely from the directionality of interlayer couplings. (1/4)
October 28, 2025 at 11:43 AM
Now out: "Directionality-induced jamming in multiplex networks" (arxiv.org/abs/2510.22634). We uncover a previously unreported diffusion regime, termed directionality-induced jamming, in multiplex networks that arises solely from the directionality of interlayer couplings. (1/4)
Our findings underscore the crucial role of interlayer link directionality in shaping the emergent behavior of multiplex systems, with potential implications for the design and control of such systems. Kudos to my co-authors: Mateo Bouchet, Alex Tejedor and Xiangrong Wang. (4/4)
October 28, 2025 at 11:38 AM
Our findings underscore the crucial role of interlayer link directionality in shaping the emergent behavior of multiplex systems, with potential implications for the design and control of such systems. Kudos to my co-authors: Mateo Bouchet, Alex Tejedor and Xiangrong Wang. (4/4)
In this regime, diffusion becomes dynamically arrested due to interlayer asymmetry, fragmenting the system into disconnected dynamical components & preventing it from converging to equilibrium. We also show that this transition can occur in synthetic and real-world systems (3/4)
October 28, 2025 at 11:38 AM
In this regime, diffusion becomes dynamically arrested due to interlayer asymmetry, fragmenting the system into disconnected dynamical components & preventing it from converging to equilibrium. We also show that this transition can occur in synthetic and real-world systems (3/4)
Previous works showed that directionality within layers can enhance diffusion (e.g., superdiffusion & prime regime). Now, we demonstrate analytically and numerically that asymmetric interlayer links can both reproduce these regimes and, remarkably, lead to a novel phenomenon. (2/4)
October 28, 2025 at 11:38 AM
Previous works showed that directionality within layers can enhance diffusion (e.g., superdiffusion & prime regime). Now, we demonstrate analytically and numerically that asymmetric interlayer links can both reproduce these regimes and, remarkably, lead to a novel phenomenon. (2/4)
Reposted by Yamir Moreno
🚀 New preprint alert!
“Advancing coupled behavioural-epidemic models: An interdisciplinary framework for the collection of empirical data”
🔗 www.medrxiv.org/content/10.1...
1/6
“Advancing coupled behavioural-epidemic models: An interdisciplinary framework for the collection of empirical data”
🔗 www.medrxiv.org/content/10.1...
1/6
Advancing coupled behavioural-epidemic models: An interdisciplinary framework for the collection of empirical data
Infection control requires integrating behavioural dynamics into epidemic models. However, models often overlook behavioural complexity due to limited empirical data. We adopted an interdisciplinary a...
www.medrxiv.org
October 9, 2025 at 1:01 PM
🚀 New preprint alert!
“Advancing coupled behavioural-epidemic models: An interdisciplinary framework for the collection of empirical data”
🔗 www.medrxiv.org/content/10.1...
1/6
“Advancing coupled behavioural-epidemic models: An interdisciplinary framework for the collection of empirical data”
🔗 www.medrxiv.org/content/10.1...
1/6
Reposted by Yamir Moreno
In just about a week, the season's first NetSci Colloquium will happen. And we're starting with a bang . . . with none other than Iain Couzin talking about Collective Behavior in Animal Groups. September 24, 10 AM ET. Register here to get a Zoom link: iu.zoom.us/webinar/regi...
September 18, 2025 at 2:02 PM
In just about a week, the season's first NetSci Colloquium will happen. And we're starting with a bang . . . with none other than Iain Couzin talking about Collective Behavior in Animal Groups. September 24, 10 AM ET. Register here to get a Zoom link: iu.zoom.us/webinar/regi...
Reposted by Yamir Moreno
Channel your excitement about network science to engage and educate the public!
The deadline for our annual educational video competition is two weeks away. bit.ly/nss-videos
The deadline for our annual educational video competition is two weeks away. bit.ly/nss-videos
September 14, 2025 at 5:04 AM
Channel your excitement about network science to engage and educate the public!
The deadline for our annual educational video competition is two weeks away. bit.ly/nss-videos
The deadline for our annual educational video competition is two weeks away. bit.ly/nss-videos
Reposted by Yamir Moreno
This work took more time & effort than expected, but it is finally out for good! 🎉
Big thanks to my collaborators Carlos Gracia Lázaro & @ymoreno.bsky.social — always a real pleasure to work together.
See the full article at: doi.org/10.1016/j.ch...
Big thanks to my collaborators Carlos Gracia Lázaro & @ymoreno.bsky.social — always a real pleasure to work together.
See the full article at: doi.org/10.1016/j.ch...
Redirecting
doi.org
August 31, 2025 at 9:14 AM
This work took more time & effort than expected, but it is finally out for good! 🎉
Big thanks to my collaborators Carlos Gracia Lázaro & @ymoreno.bsky.social — always a real pleasure to work together.
See the full article at: doi.org/10.1016/j.ch...
Big thanks to my collaborators Carlos Gracia Lázaro & @ymoreno.bsky.social — always a real pleasure to work together.
See the full article at: doi.org/10.1016/j.ch...
Reposted by Yamir Moreno
Shape the Future of Food Systems at CCS 2025!
How can complexity science unlock solutions for sustainable supply chains, food security & climate resilience?
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
@arifosch.bsky.social | @ymoreno.bsky.social | S. Baum @csh.ac.at
How can complexity science unlock solutions for sustainable supply chains, food security & climate resilience?
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
@arifosch.bsky.social | @ymoreno.bsky.social | S. Baum @csh.ac.at
Conference of Complex Systems 2025: Satellite Session Food Systems
This session at the Conference of Complex Systems in Siena, Italy, invites contributions that apply complexity science frameworks to understand and transform food systems.
is.gd
July 2, 2025 at 8:08 AM
Shape the Future of Food Systems at CCS 2025!
How can complexity science unlock solutions for sustainable supply chains, food security & climate resilience?
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
@arifosch.bsky.social | @ymoreno.bsky.social | S. Baum @csh.ac.at
How can complexity science unlock solutions for sustainable supply chains, food security & climate resilience?
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
@arifosch.bsky.social | @ymoreno.bsky.social | S. Baum @csh.ac.at
Reposted by Yamir Moreno
#CCSFrance2025 23/06 18:15: Public keynote conference from @ymoreno.bsky.social on " #SocialDilemmas via Generative Agent-Based Models" supported by the Fondation de Sciences de la Modélisation & CY Initiative
Attend to discover the blend between #ABM and #LLM
➡️ conferences.css-fr.org?page_id=603
Attend to discover the blend between #ABM and #LLM
➡️ conferences.css-fr.org?page_id=603
May 26, 2025 at 2:49 PM
#CCSFrance2025 23/06 18:15: Public keynote conference from @ymoreno.bsky.social on " #SocialDilemmas via Generative Agent-Based Models" supported by the Fondation de Sciences de la Modélisation & CY Initiative
Attend to discover the blend between #ABM and #LLM
➡️ conferences.css-fr.org?page_id=603
Attend to discover the blend between #ABM and #LLM
➡️ conferences.css-fr.org?page_id=603
Reposted by Yamir Moreno
Join CCS 2025’s Food Systems Session! Apply complexity science to tackle food security, climate resilience and supply chains.
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
#ComplexSystems #FoodSystems #CallForPapers
@arifosch.bsky.social @ymoreno.bsky.social S. Baum @csh.ac.at
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
#ComplexSystems #FoodSystems #CallForPapers
@arifosch.bsky.social @ymoreno.bsky.social S. Baum @csh.ac.at
Conference of Complex Systems 2025: Satellite Session Food Systems
This session at the Conference of Complex Systems in Siena, Italy, invites contributions that apply complexity science frameworks to understand and transform food systems.
is.gd
May 20, 2025 at 7:42 AM
Join CCS 2025’s Food Systems Session! Apply complexity science to tackle food security, climate resilience and supply chains.
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
#ComplexSystems #FoodSystems #CallForPapers
@arifosch.bsky.social @ymoreno.bsky.social S. Baum @csh.ac.at
Submit a 1-2 page abstract + figure by 10 July 2025 is.gd/laMmRc
#ComplexSystems #FoodSystems #CallForPapers
@arifosch.bsky.social @ymoreno.bsky.social S. Baum @csh.ac.at
Reposted by Yamir Moreno
Now out: "Rumor propagation on hypergraphs" (arxiv.org/abs/2504.19305). We propose a higher-order rumour model incorporating a group-based annihilation mechanism. We run computational experiments to characterise the model's dynamics in synthetic and real systems... 1/5
Rumor propagation on hypergraphs
The rapid spread of information and rumors through social media platforms, especially in group settings, motivates the need for more sophisticated models of rumor propagation. Traditional pairwise mod...
arxiv.org
April 29, 2025 at 1:55 PM
Now out: "Rumor propagation on hypergraphs" (arxiv.org/abs/2504.19305). We propose a higher-order rumour model incorporating a group-based annihilation mechanism. We run computational experiments to characterise the model's dynamics in synthetic and real systems... 1/5
Our framework demonstrates a scenario for facilitating the representability of deep neural networks through learning the underlying mechanism, which aims to steer applications for predicting complex behavior that learnable physical rules can drive. Kudos to my co-authors! 4/4
April 16, 2025 at 10:13 AM
Our framework demonstrates a scenario for facilitating the representability of deep neural networks through learning the underlying mechanism, which aims to steer applications for predicting complex behavior that learnable physical rules can drive. Kudos to my co-authors! 4/4
We evaluate the performance of our framework in predicting typical critical behavior in spreading dynamics on various synthetic and real-world networks. Our results show that governing rules can be learned effectively and significantly improve prediction accuracy. 3/4
April 16, 2025 at 10:13 AM
We evaluate the performance of our framework in predicting typical critical behavior in spreading dynamics on various synthetic and real-world networks. Our results show that governing rules can be learned effectively and significantly improve prediction accuracy. 3/4
More specifically, the learned governing rules further refine and guide the representative learning of neural networks from a series of dynamic graphs. This combination enables knowledge-based prediction for the critical behavior of dynamical networked systems 2/4
April 16, 2025 at 10:13 AM
More specifically, the learned governing rules further refine and guide the representative learning of neural networks from a series of dynamic graphs. This combination enables knowledge-based prediction for the critical behavior of dynamical networked systems 2/4
New MS: "Predicting the critical behavior of complex dynamic systems via learning the governing mechanisms" (arxiv.org/abs/2504.09622). We propose a framework to learn the rules that govern the dynamics of a system & apply it to study SIR dynamics & predict critical properties 1/3
April 16, 2025 at 10:13 AM
New MS: "Predicting the critical behavior of complex dynamic systems via learning the governing mechanisms" (arxiv.org/abs/2504.09622). We propose a framework to learn the rules that govern the dynamics of a system & apply it to study SIR dynamics & predict critical properties 1/3
Reposted by Yamir Moreno
Our paper DOCES (Dynamical Opinion Clusters Exploration Suite) is now published in SoftwareX! 📄
DOCES helps model opinion dynamics in social networks, exploring polarization, algorithmic influence, and user behavior.
🔗 Paper: doi.org/10.1016/j.so...
📌 Library on PyPI: pypi.org/project/doces/
DOCES helps model opinion dynamics in social networks, exploring polarization, algorithmic influence, and user behavior.
🔗 Paper: doi.org/10.1016/j.so...
📌 Library on PyPI: pypi.org/project/doces/
April 2, 2025 at 3:34 AM
Our paper DOCES (Dynamical Opinion Clusters Exploration Suite) is now published in SoftwareX! 📄
DOCES helps model opinion dynamics in social networks, exploring polarization, algorithmic influence, and user behavior.
🔗 Paper: doi.org/10.1016/j.so...
📌 Library on PyPI: pypi.org/project/doces/
DOCES helps model opinion dynamics in social networks, exploring polarization, algorithmic influence, and user behavior.
🔗 Paper: doi.org/10.1016/j.so...
📌 Library on PyPI: pypi.org/project/doces/