More information about the Spanish Chapter of the Complex Systems Society is provided at https://cs3.ifisc.uib-csic.es/

2nd Meeting of the Spanish Chapter of the Complex Systems Society | CS3

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Workshop
From February 22, 2024
to February 23, 2024
Registration deadline 11 / 02 / 2024

REGISTRATION FEE

175€ Regular Registration

125€ Junior Registration (PhD candidates or presented PhD less than 5 years ago)

 

* Researchers and affiliated researchers from the CRM are granted free registration for activities organized by the CRM.

** Registration includes coffee breaks, lunches and social dinner.

***Registration is subject to the room’s capacity.

Venue: Institut d’Estudis Catalans (C/ del Carme, 47, Ciutat Vella, 08001 Barcelona)

Introduction
During the 2022 International Conference on Complex Systems celebrated in Palma de Mallorca, the Complex Systems Society approved the creation of its Spanish Chapter.

The main goal of the Spanish Chapter is to gather researchers in complex systems and other areas of potential interaction in an annual meeting celebrated somewhere in Spain.

The meeting will have the format of a two-day workshop with about 5 invited talks (30 min) and a number of contributed talks (15 or 20 min).

Previous editions:

First Meeting of the Spanish Chapter of the Complex Systems Society in Santander in May 2023.

Organising Committee
Álvaro Corral | Centre de Recerca Matemàtica (CRM)
Josep Sardanyés | Centre de Recerca Matemàtica (CRM)
Scientific Committee
Jordi García Ojalvo | Universitat Pompeu Fabra (UPF)
Marta Ibáñes | Universitat de Barcelona (UB)
Cristina Masoller | Universitat Politècnica de Catalunya (UPC)
Romualdo Pastor Satorras | Universitat Politècnica de Catalunya (UPC)
José Javier Ramasco | Institute for Cross-Disciplinary Physics and Complex Systems (IFISC  – CSIC – UIB)
Jordi Soriano | Universitat de Barcelona (UB)
SPEAKERS

Interplay between adaptive awareness and epidemic spreading

Celia Anteneodo

PUC-Rio de Janeiro
Short bio
Celia Anteneodo is Professor of Physics at PUC-Rio since 2004. She has experience in statistical and nonlinear physics. Her current research lines include stochastic dynamics, nonlinear dynamics, and emergent collective properties of complex systems (for more information click here).

She received BSc degree in Physics from the University of Buenos Aires, Argentina (1986), and PhD in Physics from the Brazilian Center for Physics Research (CBPF, 1993), having done part of her thesis at the University of Waterloo, Canada. Later she conducted postdoctoral research in nonlinear and statistical physics at CBPF and at the Biophysics Institute of the Federal University of Rio de Janeiro (UFRJ-IBCCF), where she was visiting professor from 1997 to 2001.

https://www.fis.puc-rio.br/es/colaborador/celia-anteneodo/

Abstract

Title:
Interplay between adaptive awareness and epidemic spreading

Abstract:
The adoption of attitudes by the population to mitigate epidemic outbreaks, such as social isolation, hand washing, or the use of face masks, can be influenced by the perception of the epidemic scenario.
This perception is shaped by local and global information, and can be distorted by misinformation. Particularly, we study the impact of local and global information about the epidemic status in a susceptible–infected–recovered (SIR) dynamic that evolves in complex networks, in which the epidemiological perception of the environment can influence the behavior of susceptible individuals towards protective measures. We observe that local awareness significantly raises the epidemic threshold, delays the peak of prevalence, and reduces the outbreak size, however these effects are reduced by network heterogeneity. These results may have implications for mitigation strategies. On the other hand, the agent-based simulations reveal aspects not captured by the heterogeneous mean-field theory, which can represent a mathematical challenge to improve the theory.

Predictors of bullying behavior and victimization at school: a network approach.

Antonio Cabrales

Universidad Carlos III de Madrid
Short bio
Antonio Cabrales has a Ph.D. in Economics from the University of California, San Diego and has a degree from the Complutense University. He has been a professor and director of the economics department at University College London, and a professor at the Pompeu Fabra University of Barcelona. He is also executive vice president of the European Economic Association and former president of the Spanish Economics Association and honorary member of both associations. He works on social network economics, and design and mechanisms, learning games and evolution, experimental and behavioral economics, and industrial organization. He is associate editor of the Journal of Economic Theory, and previously editor of the Berkeley Electronic Journal of Economic Analysis and Policy and Economic Research, as well as former associate editor of the Journal of the European Economic Association and SERIEs.

https://economia.uc3m.es/personal/cabrales-goitia/

Abstract

Bullying is a very serious problem that previous literature has shown affects a large fraction of students in compulsory schooling. We use a social networks approach to study victimization and perpetration of bullying at schools. We use a large database from high school students in Spain and collect data from their friendships, as well as individual characteristics. We show that their social network characteristics are strongly predictive of both victimization and perpetration of bullying.

Computers and Complexity: From Physical Systems to Quantum Computers and Beyond

Eva Miranda

Universitat Politècnica de Catalunya – CRM
Short bio

I am a Full Professor distinguished with two consecutive ICREA Academia Awards (2016, 2021) at (UPC), member of CRM and IMTECH. I have been recently distinguished with the François Deruyts Prize by the Royal Academy of Belgium and with a Bessel Prize by the Alexander Von Humboldt foundation. I am the 2023 London Mathematical Society Hardy lecturer as such I have enjoyed lecturing a 9 stop-tour in the summer of 2023 which has been quite a unique experience. The picture above was taken in the middle of the tour at the University of Loughborough.

I am the director of the Laboratory of Geometry and Dynamical Systems and the group leader of GEOMVAP (Geometry of Varieties and Applications). I have been the happy advisor of 12 PhD students.

My research deals with several aspects of Differential Geometry, Mathematical Physics and Dynamical Systems such as Symplectic and Poisson Geometry, Hamiltonian Dynamics, Group actions and Geometric Quantization. Almost a decade ago I started the investigation of several facets of b-Poisson manifolds (also known as log-symplectic manifolds). These structures appear naturally in physical problems on manifolds with boundary and in Celestial mechanics such as the 3-body problem (and on its restricted versions) after regularization transformations. I recently got interested in Fluid Dynamics and the study of their complexity (computational, topological, logical, dynamical) by looking through a contact mirror unveiled two decades ago by Etnyre and Ghrist. I am working in extending Floer homology to a class of Poisson manifolds including b-Poisson manifolds and the classical Weinstein conjecture in this set-up. My motivation comes from the search of periodic orbits on regularized problems in Celestial Mechanics (more information here).

https://web.mat.upc.edu/eva.miranda/nova/

Abstract

Are physical systems complicated enough to do computations?

In this talk, we will present a physical system (a Fluid) that can compute. 

The construction is an abstract design of a fluid computer based on geometrical techniques.

 A key step in this construction involves extending a generalized shift   ( a particular type of mapping of the square Cantor set) to the time-one-map of a special 3D vector field on a solid torus—a fundamental unit that we call a ‘flubit.’ Drawing inspiration from Feynman’s rules in quantum computing, we opt to replace qubits with ‘flubits.’ This shift leads us to define a computational field theory, or ‘hybrid computer,’ as a functor from the category of cobordisms (decorated with transverse vector fields) to the category of partial recursive functions. Will the hybrid computer, with its unique ‘flubit’ design, potentially surpass quantum supremacy?  Time permitting, we will explore the relation between different levels of complexity (dynamical, computational) of these constructions and speculate on methods to encapsulate them through a TQFT template.

This is joint work with Ángel González Prieto and Daniel Peralta-Salas.

Scaling of brain activity and optimal functionality: from real neurons to artificial intelligence

Miguel Ángel Muñoz

Universidad de Granada
Short bio
https://www.ugr.es/personal/miguel-angel-munoz-martinez
Abstract

Title: Scaling of brain activity and optimal functionality: from real neurons to artificial intelligence.

Speaker: Miguel Ángel Muñoz Universidad de Granada

Abstract:
I will review recent advances in data-driven analyses of brain activity, which complemented by theoretical studies such as renormalization-group techniques, allow us to shed light on the dynamical regime in which neural activity operates across brain regions. We leverage these insights to design and scrutinize artificial neural networks with recurrent interactions. We find that both biological and artificial networks achieve optimal performance when balanced to operate close to the edge of instability.

Inference for multi-layer networks, metadata and higher-order interactions

Marta Sales Pardo

Universitat Rovira i Virgili
Short bio
Marta Sales-Pardo (Barcelona, 1976) graduated in Physics at Universitat de Barcelona in 1998, and obtained a PhD in Physics from Universitat de Barcelona in 2002. She then moved to Northwestern University, where she first worked as a postdoctoral fellow and, later, as a Fulbright Scholar. In 2008, she became a Research Assistant Professor at the Northwestern University Clinical and Translational Science Institute with joint appointments in the Department of Chemical and Biological Engineering and the Northwestern Institute on Complex Systems. In 2009, she accepted her current position as an Associate Professor in the Departament d’Enginyeria Química at Universitat Rovira i Virgili.

https://www.deq.urv.cat/en/people/marta-sales/

Abstract

From Complexity to Simplicity: the Rise and Fall of Innovations

Sergi Valverde

Institut de Biologia Evolutiva (CSIC-UPF)
Short bio
Dr. Sergi Valverde is complex systems scientist and head of the Evolution of Networks group at the Institute of Evolutionary Biology (CSIC) . Born in Barcelona, studied computer science and physics at the School of Informatics (FIB) of the Universitat Politecnica de Catalunya (UPC) and worked for a while as professional game developer (1997-2002). Sergi’s scientific career was mentored by ICREA Professor Ricard Sole (Complex Systems Lab, 2003-2016) and was very fortunate to travel to the Santa Fe Institute for many years. Sergi was an assistant professor of “Complexity Science” and “Evolutionary Algorithms” at the Degree of Biomedical Engineering of the University Pompeu Fabra (2009-2020). He actively collaborates with the Node Lab at the Centre for Mathematical Research (Dr. Josep Sardanyés), the University of Tennessee at Knoxville (Prof. R. Alex Bentley), the Universitat Politecnica de Valencia (Prof. Santiago F. Elena, Evolutionary Systems Virology Group) and the University Pompeu Fabra (Prof. Jordi Garcia-Ojalvo), and serves as board member of Complexitat.cat , the Catalan Network for the Study of Complex Systems. His published research deals with complex networks, collective intelligence, and computational models of evolutionary and ecological processes. Currently, Sergi is working in an evolutionary theory of technological innovation.

Abstract

Title:
From Complexity to Simplicity: the Rise and Fall of Innovations

Abstract:
When examining the history of technology, it becomes evident that not all inventions are defined equal. Only a chosen few have the potential to start new branches of development, significantly impact human life, and become pivotal turning points in history. The question arises: Is technological change a continuous and gradual process, or does it occur in sudden leaps and bounds? In this talk, we will explore the rise and fall of technological innovations by examining the relationship between diversity, information redundancy, open-endedness, and the role of cumulative cultural evolution (CCE) in driving technological change. Through the analysis of the evolution of information technology (IT), we will gain insights into the quantitative and theoretical aspects of cultural evolution.

contributed talks

CONTRIBUTIONS LIST & ABSTRACTS

SCHEDULE

Thursday

February 22nd

8:30

8:50

REGISTRATION

8:50

9:00

WELCOME / OPENING

9:00

9:30


Chair: Jose Javier Ramasco (CSIC)


Predictors of bullying behavior and victimization at school: a network approach.

Antonio Cabrales

Universidad Carlos III de Madrid

9:30

10:45


Contributed talks:

9:30 | A dynamical model of signed social networks
Miguel A. González-Casado (Universidad Carlos III)

_____

9:45 | The Spanish secondary education curriculum as a multilayer network
Juan Fernández-Gracia (IFISC, UIB-CSIC)

______

10:00 | Ordering dynamics of non-linear voter models
Lucía Ramirez (IFISC, UIB-CSIC)

______

10:15 | Partisan Voter Model: Stochastic description and noise-induced transitions
Jaume Llabres (IFISC, UIB-CSIC)

______

10:30 | Beliefs and Social Networks: Exploring Opinion Dynamics in Interconnected Complex Systems
Irene Ferri (UBICS)

10:45

11:15

COFFEE BREAK

11:15

11:45

Chair: Albert Diaz Guilera (Universitat de Barcelona)


Inference for multi-layer networks, metadata and higher-order interactions

Marta Sales Pardo

Universitat Rovira i Virgili

11:45

13:45

Contributed talks:

11:45 | Characterizing social information spreading by using event-synchronization and causality measures
Cristina Masoller (UPC)

______

12:00 | Dynamics of Quantum Public Goods Games
Juan Carlos Losada (Universidad Politécnica de Madrid)

______

12:15 | Migration costs and rewarding schemes in spatial public goods games

Rashid Ibrahimli (Universidad Carlos III)

______

12:30 | An entropic study of social manifestations
Yérali Gandica (VIU)

______

12:45 | Understanding the Vegetable Oil Debate and its Implications for Sustainability through Social Media
Alberto Aleta (MACSISI Foundation)

______

13:00 | Data and Model Analysis of Socioeconomic Influence on Linguistic Variation
David Sánchez (IFISC, UIB-CSIC)

______

13:15 | Language dynamics within adaptive networks: An agent-based approach of nodes and links coevolution
Christos Charalambous (IFISC, UIB-CSIC)

______

13:30 | Analysis of language ideologies and social interconnectivity for languages in contact
Pablo Rosillo-Rodes (IFISC, UIB-CSIC)

13:45

15:30

LUNCH

15:30

16:00

Chair: Jordi Garcia-Ojalvo (Universitat Pompeu Fabra)


From Complexity to Simplicity: the Rise and Fall of Innovations

Sergi Valverde

Institut de Biologia Evolutiva (CSIC-UPF)

16:00

16:45

Contributed talks:

16:00 | Thermodynamics of Darwinian evolution in molecular replicators
Artemy Kolchinsky

______

16:15 | Growth rate determines cell cycle time allocation in budding yeast
Adolfo Alsina (Instituto Gulbenkian de Ciencia)

______

16:30 | On a mathematical model of epidermal wound healing in Drosophila embryos
Dmitry I. Sinelshchikov (Ikerbasque Foundation and Biofisika Institute)

______

16:45 | Circular Directional Flow Decomposition
Marc Homs-Dones (University of Warwick)

17:00

17:30

COFFEE BREAK

17:30

18:30

Chair: Josep Sardanyés (Centre de Recerca Matemàtica)


Contributed talks:

______

17:30 | “Impossible” pattern formation made possible by pulsed interactions
Emilio Hernández-García (IFISC, UIB-CSIC)

______

17:45 | Sparse species interactions reproduce abundance correlation patterns in microbial communities
Jose Camacho-Mateu (Universidad Carlos III)

______

18:00 | A pragmatic approach to predict tipping points in dynamical systems
Sergio Cobo-López (San Diego State University)

______

18:15 | Linear theory of the spatial signatures of critical slowing down
Giulio Tirabassi (UPC)

18:30

19:30

Assembly of the Complex Systems Society Spanish Chapter

20:30

SOCIAL DINNER

Friday

February 23rd

9:00

9:30

Chair: Cristina Masoller (Universitat Politècnica de Catalunya)


Interplay between adaptive awareness and epidemic spreading

Celia Anteneodo

PUC-Rio de Janeiro

9:30

10:45


Contributed talks:

9:30 | Network trajectories
Lucas Lacasa (IFISC, UIB-CSIC)

_____

9:45 | Modeling and Data-Driven Surveillance strategies in Urban Epidemiology

Pablo Valgañón (University of Zaragoza)

______

10:00 | Semi-metric topology characterizes epidemic spreading on complex networks
David Soriano-Paños (Instituto Gulbenkian de Ciencia)

______

10:15 | Microscopic organization of higher-order networks drives explosive collective behaviors
Santiago Lamata (Universidad de Zaragoza)

______

10:30 | Restoring uniformity in hypergraph spectral centralities via the uplift
Gonzalo Contreras-Aso (Universidad Rey Juan Carlos)

10:45

11:15


COFFEE BREAK & GROUP PHOTO

11:15

11:45

Chair: Marián Boguñá (Universitat de Barcelona)


Scaling of brain activity and optimal functionality: from real neurons to artificial intelligence

Miguel Ángel Muñoz

Universidad de Granada

11:45

13:30

Contributed talks:

11:45 | An effective theory of collective deep learning
Lluís Arola-Fernández (IFISC, UIB-CSIC)

______

12:00 | Optimal navigability of weighted human brain connectomes in physical space
Laia Barjuan (UB)

______

12:15 | Liquid state computing in neuronal cultures: effects of connectivity modularity on response separation and generalisation in numerical simulations and experiments
Akke Mats Houben (UBICS)

______

12:30 | Probabilistic graph alignment applied to brain connectomes
Teresa Lázaro (URV)

______

12:45 | Performance of different permutation entropy-based methods for distinguishing eyes-open and eyes-closed brain states
Juan Gancio (UPC)

______

13:00 | Weakly geometric graphs and their properties
Jasper van der Kolk (UB)

______

13:15 |Exploring Cultural Heritage Impact on the French Way of Camino de Santiago in Castilla y León: A Google News Analysis
José Manuel Galán (Universidad de Burgos)

13:30

15:00

LUNCH

15:00

15:30

Chair: M. Ángeles Serrano Moral (Universitat de Barcelona)


Computers and Complexity: From Physical Systems to Quantum Computers and Beyond

Eva Miranda

Universitat Politècnica de Catalunya – CRM

15:30

17:15

Contributed talks:

15:30 | Identifiability Matters: A Closer Look at the art of simple mathematical models for complex systems
Mario Castro (Universidad Pontificia Comillas)

______

15:45 | Does big data help answer big questions? The case of airport catchment areas & competition
José J. Ramasco (IFISC, UIB-CSIC)

______

16:00 | Symbolic machine learning to understand human mobility

Oriol Cabanas (Universitat Rovira i Virgili)

______

16:15 | Assessing the real estate market spatial segmentation
David Abella (IFISC, UIB-CSIC)

______

16:30 | Reputation-driven interactions influence the emergence of technological innovations
Pablo Gallarta-Sáenz (University of Zaragoza)

______

16:45 | Feature-enriched hyperbolic network geometry
Roya Aliakbarisani (UB)

______

17:00 | The D-Mercator method for the multidimensional hyperbolic embedding of real networks
Robert Jankowski (UB)

17:15

18:15

WINE&CHEESE & FAREWELL

LIST OF PARTICIPANTS
Name Institution
Maxi San Miguel IFISC (CSIC-UIB)
Dmitry Sinelshchikov Biofisika Institute (CSIC, UPV/EHU)
Emilio Hernandez-Garcia IFISC (CSIC-UIB)
Yérali Gandica Valencian International University
Adolfo Alsina Instituto Gulbenkian de Ciência
Chunhong Li UOC
Jesús Arturo Moreno López IFISC (UIB-CSIC)
Celia Anteneodo Pontifícia Universidade Católica do Rio de Janeiro
Angelo Piga Universitat de Barcelona
Akke Mats Houben Universitat de Barcelona
Dimitri Marinelli Universitat de Barcelona
Marc Sadurní Parera Universitat de Barcelona
Albert Diaz Guilera Universitat de Barcelona
Lucía Ramirez Universitat de Barcelona
Marta Ibañes Universitat de Barcelona
Jordi Soriano Fradera Universitat de Barcelona
Marc Burillo Garcia Universitat de Barcelona
Mikel Ocio Moliner Universitat de Barcelona
Marián Boguñá Universitat de Barcelona
M. Carmen Miguel Universitat de Barcelona
M. Ángeles Serrano Moral Universitat de Barcelona
Oriol Artime Universitat de Barcelona
Jasper van der Kolk Universitat de Barcelona
Roya Aliakbarisani Universitat de Barcelona
Robert Jankowski Universitat de Barcelona
Laia Barjuan Ballabriga Universitat de Barcelona
cris MASOLLER Universitat Politècnica de Catalunya
Giulio Tirabassi Universitat Politècnica de Catalunya
Juan Gancio Universitat Politècnica de Catalunya
Eva Miranda Galcerán Universitat Politècnica de Catalunya
Kshitij Sinha Universitat Pompeu Fabra
Gorka Zamora-López Universitat Pompeu Fabra
Jordi Garcia-Ojalvo Universitat Pompeu Fabra
Artemy Kolchinsky Universitat Pompeu Fabra
Teresa Lázaro Sánchez Universitat Rovira i Virgili
Lluís Torres Hugas Universitat Rovira i Virgili
Gemma Bel Bordes Universitat Rovira i Virgili
Oriol Cabanas Universitat Rovira i Virgili
David Soriano Paños Universitat Rovira i Virgili
Segio Gómez Universitat Rovira i Virgili
Manuel Ruiz Botella Universitat Rovira i Virgili
Marta Sales Pardo Universitat Rovira i Virgili
Alessio Cardillo Universitat Oberta de Catalunya
Javier Borge Universitat Oberta de Catalunya
Robert Benassai Universitat Oberta de Catalunya
Ruben Rodriguez Casañ Universitat Oberta de Catalunya
Cristina Bustos Universitat Oberta de Catalunya
Albert Sole Universitat Oberta de Catalunya
David Sanchez Universitat de Les Illes Balears
Jaume Llabrés Rubio Universitat de Les Illes Balears
Christos Charalambous Universitat de Les Illes Balears
Pablo Rosillo-Rodes Universitat de Les Illes Balears
David Abella Universitat de Les Illes Balears
Beatriz Arregui García Universitat de Les Illes Balears
Miguel Ángel Muñoz Universidad de Granada
Santiago Lamata Otín Universidad de Zaragoza
Pablo Valgañón Universidad de Zaragoza
Hugo Pérez-Martínez Universidad de Zaragoza
Pablo Gallarta Universidad de Zaragoza
Alberto Aleta Casas Universidad de Zaragoza
Rosa María Benito Zafrilla Universidad Politécnica de Madrid
Juan Carlos Losada González Universidad Politécnica de Madrid
Mario Castro Universidad Pontificia de Comillas
Miguel Ángel González Casado Universidad Carlos III de Madrid
Alberto Antonioni Universidad Carlos III de Madrid
Angel Sánchez Universidad Carlos III de Madrid
Jose Manuel Camacho-Mateu Universidad Carlos III de Madrid
Rashid Ibrahimli Universidad Carlos III de Madrid
Antonio Cabrales Universidad Carlos III de Madrid
Aniello Lampo Universidad Carlos III de Madrid
José Manuel Galán Universidad de Burgos
Gonzalo Contreras Aso Universidad Rey Juan Carlos
Jorge Tredicce Universidad Rey Juan Carlos
Ceren Ekinci Ruprecht Karl University of Heidelberg
Marc Homs-Dones University of Warwick
Lluis Danus Amengual University of Pennsylvania
Sergio Cobo-Lopez San Diego State University
Alvaro Corral Centre de Recerca Matemàtica
Amaia Vielba Centre de Recerca Matemàtica
Oriol Llopis Almela Centre de Recerca Matemàtica
Tomas Alarcon Centre de Recerca Matemàtica
Stefano Pedarra Centre de Recerca Matemàtica
Arantxa Sanz Centre de Recerca Matemàtica
Josep Sardanyés Centre de Recerca Matemàtica
Lluís Arola Fernández CSIC
Juan Fernandez-Gracia CSIC
Sandro Meloni CSIC
Sergi Valverde CSIC
Jose Javier Ramasco CSIC
LUCAS LACASA CSIC
Daniel Oro CSIC
INVOICE/PAYMENT INFORMATION
IF YOUR INSTITUTION COVERS YOUR REGISTRATION FEE: Please note that, in case your institution is paying for the registration via bank transfer, you will have to indicate your institution details and choose “Transfer” as the payment method at the end of the process.
UPF | UB | UPC | UAB
*If the paying institution is the UPF / UB/ UPC / UAB, after registering, please send an email to comptabilitat@crm.cat with your name and the institution internal reference number that we will need to issue the electronic invoice. Please, send us the Project code covering the registration if needed.
Paying by credit card
IF YOU PAY VIA CREDIT CARD but you need to provide the invoice to your institution to be reimbursed, please note that we will also need you to send an email to comptabilitat@crm.cat providing the internal reference number given by your institution and the code of the Project covering the registration (if necessary).
LODGING INFORMATION

ON-CAMPUS AND BELLATERRA

BARCELONA AND OFF-CAMPUS 

 

For inquiries about this event please contact the Scientific Events Coordinator Ms. Núria Hernández at nhernandez@crm.cat​​