Young Complexity Researchers’ Lunch (YCRL) #12: Beyond two-body interaction: the cubic mean-field model

Before the pandemic, we organized biweekly sessions at the CCSS called “Reading Group/Science Jam” for our researchers to discuss challenges in Complex Systems Studies. Now with the possibility to meet in person at the CCSS again, we would like to reintroduce this kind of community building events and make them more approachable for young complexity researchers to share their complex systems science related work in a relaxing and informal settings. Everyone is welcome!

Therefore, we cordially invite you to the Young Complexity Researchers’ Lunch (YCRL) #12 on Thursday 5 October (12:30-13:00) at the Centre for Complex Systems Studies (CCSS) where you can:

• Get a free gourmet lunch with the best sandwiches you can get in the Utrecht Science Park;

• Know one young complexity researchers' work over just 30 mins;

• Contribute your professional knowledge and experiences in a relaxing and informal setting;

• Develop potential collaboration.

YCRL#12: Beyond two-body interaction: the cubic mean-field model
Leading young complexity researcher: Godwin Osabutey, Mathematics (University of Bologna, Italy)

Abstract:

Complex networks have dominated as the primary paradigm for simulating the dynamics of interacting systems for many years. However, networks or graphs are inherently limited to describing pairwise interactions, whereas higher-order interactions, that is, interactions in groups of three or more units, are common.  In this presentation we will discuss the extension of the work of McFadden (Nobel Prize winner in Economics, 2000) by a system with higher-order interaction, like hypergraphs, where three units interact simultaneously under the mean-field assumption. This extended model will be used as a paradigm to simulate the Human-AI ecosystem and analyze the effect of interaction and composition on the aggregate behavior of the system. A noteworthy feature of this extension is that it exhibits a discontinuous first-order phase transition (i.e. tipping point behavior), whereas the traditional dyadic models do not.

Everyone is welcome, and please feel free to invite your colleagues/friends/classmates/students to join us.

If you would like to have the lunch arrangement, please sign up before 12:00pm Wednesday 4 October.