XI Complexitat Day


5-6 June 2024 // Campus UOC, Barcelona


Two-day format

This year's event will span over two days. The main Complexitat Day is scheduled for June 6th, and will follow its regular format. However, the preceding day, June 5th, will feature a dedicated session for students, including a series of workshops and talks.

Day 1 Program (Warm-up)

Day 2 Program (Jornada)

Confirmed Invited Speakers

We are very happy to announce that this year's invited speakers are:

Program for Warm-Up day
(Day 1, 5th June)

9:30 - 9:50 Registration
9:50 - 10:00 Welcome
10:00 - 11:50 Introduction to Bayesian inference: Theory and practice
Roger Guimerà
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11:50 - 12:10 Coffee Break
12:10 - 13:30 Academic allies: tackling challenges and building community
Panel: Carmen Miguel, Angelo Piga, Irene Ferri, Clara Granell
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13:30 - 15:00 Group Lunch
15:00 - 16:50 A quick introduction to Data Visualization
Alessio Cardillo
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16:50 - 17:10 Coffee break
17:10 - 19:30 Young Researchers Project Jam
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Introduction to Bayesian inference: Theory and practice

Thinking about the world, and especially modeling it, requires reasoning quantitatively with uncertainty. The mathematical tool set for doing this is probability theory; in this sense, probability theory is the logic of science. In this lecture, we will discuss the Bayesian interpretation of probabilities, which takes the idea of "probability theory as the logic of science" as its starting point. We will also discuss how to make inferences from data that are consistent with this interpretation and see how this Bayesian inference clarifies some conundrums that appear in other interpretations of probabilities. We will also discuss its connections to information theory and statistical physics, and finish by discussing some examples of Bayesian inference in network theory and machine learning.

Academic allies: tackling challenges and building community

In this session, students and researchers from different career stages will gather to discuss academic challenges and career development in a supportive environment. Additionally, we will collectively explore how to integrate young researchers more effectively into the Complexitat.cat community, taking into account their needs and expectations.

A quick introduction to Data Visualization

Data visualization is the process of translating raw data into diagrams and images explaining numbers, allowing us to gain insight from them. An effective visualization is the best way to communicate information extracted from the analysis of increasingly large and complex datasets. In this tutorial, we will explore the basic concepts of data visualization, and provide some tips to navigate through the rough seas of visualization; thus making more sense of data and allowing the highlight of patterns and trends.

Young Researcher Project Jam

This two-hour session aims to facilitate interaction and foster connections among young researchers to strengthen the Catalan Complex System Community while fostering collaboration and innovation across disciplines to address global challenges. Researchers will introduce themselves and form groups to develop collaborative project proposals related to Sustainable Development Goals, using tools from complex systems, networks, and their research areas. It is open to all researchers, regardless of career stage.

Program for Complexitat Day
(Day 2, 6th June)

9:00 - 9:30 Registration
9:30 - 9:45 Welcome Speech
9:45 - 10:30 Keynote Talk I:
Nataša Pržulj
AI for Multi-Omics Data Fusion to Enable Precision Medicine.
10:30 - 11:00 Coffee Break
11:00 - 11:45 Keynote Talk II:
Frederic Bartumeus
Behavioural Ecology Through the Lens of Complexity.
11:45 - 12:45 Contributed Talks I
  • 11:45 - 12:00 | Roberto Corral, UdG
    Deciphering Dysbiosis: Modeling the Ecological Dynamics of the Gut Microbiome.
  • 12:00 - 12:15 | Carles Martorell, UdG
    Dynamically selected steady states and criticality in non-reciprocal networks.
  • 12:15 - 12:30 | Pau Pomés, UPF
    Sparse synchronization in networks of Excitatory-Inhibitory pulse-coupled phase-oscillators.
  • 12:30 - 12:45 | Teresa Lázaro, URV
    Probabilistic graph alignment applied to brain connectomes.
13:00 - 15:00 Lunch
15:00 - 16:00 Assamblea Complexitat.cat
16:00 - 16:45 Keynote Talk III:
Susanna Manrubia
Viral odyssey: navigating genotype spaces from a virus's perspective.
16:45 - 17:15 Coffee break
17:15 - 18:15 Contributed Talks II
  • 17:15 - 17:30 | Ramon Ferrer i Cancho, UPC
    Word order radiation from two sources.
  • 17:30 - 17:45 | Piergiorgio Castioni, URV
    Timing as a fundamental feature for an effective vaccination campaign against large resurgence of cases.
  • 17:45 - 18:00 | Oriol Artime, UB
    Analytical modeling of generalized ring vaccination strategies.
  • 18:00 - 18:15 | Raul de Palma, UPF
    Inferring the connectivity of coupled oscillators from event timing analysis.
18:15 - 19:45 Poster session & Beer
19:45 - 20:00 Closure

Call for Contributions

The call for contributions is closed.

The submission of abstracts for posters and short talks (10 to 15 minutes) is available until April 25, 2024.
We welcome abstracts from all areas of complex systems science.


Kindly submit your abstracts via email to abstracts@complexitat.cat. In the subject line of the email, specify your preference: "Poster abstract" or "Short talk abstract". Please use the provided LaTeX template, accessible through this link (or the one below), when submitting your abstract. Ensure that the abstract is in PDF format and includes the title, authors, affiliation, acknowledgments, and text. Bibliography and a figure are optional. The length should be one page, except if there is a figure.

Notification of results will be sent on May 10, 2024.

Download LaTeX template
Send your contribution via email


Registration instructions

The registration is open!

Please, fill and send the following form to register. Or click here to open the form in a new page.


Jornada Tutorial + Jornada Jornada Tutorial + Jornada
Master and undergraduate students 15€ 35€ 25€ 45€
Predoctoral researchers 60€ 80€ 75€ 100€
Doctors: postdocs 75€ 95€ 90€ 115€
Doctors: Tenure-track & permanent 85€ 100€
Row 0 participants 10€ 10€

The tutorial is aimed for students and will be held on June 5th. The regular "Jornada" will be held on the 6th.

Important dates

April 2 Abstact submissions opens
April 25 May 3 Deadline for abstract submissions
May 10 Notification of acceptance
May 20 May 24 Deadline for Early registration
May 25 - June 5 Regular registration
June 5 & 6 Tutorial & Jornada


The current year's event will take place across two different venues within the UOC Campus, which are only a 2-minute walk apart.

June 5th Location

Can Jaumandreu
UOC Universitat Oberta de Catalunya

C/ del Perú, 52, Sant Martí
08018 Barcelona

Google Maps

June 6th Location

R&I Interdisciplinary Hub - Campus UOC
Universitat Oberta de Catalunya - Building C

Hub Interdisciplinar de Recerca i Innovació
Rambla del Poblenou, 154, Sant Martí
08018 Barcelona

Google Maps


Organized by: Junta Complexitat.cat + Gemma Bel + Robert Benassai.

Previous editions

  • 2023    Lleialtat Santsenca, Barcelona
  • 2022    Pati Llimona, Barcelona
  • 2019    CRM - IEC
  • 2018    UPF
  • 2017    IN3-UOC
  • 2016    INEFC
  • 2015    URV
  • 2014    UPC
  • 2012    UB
  • 2011    UB