SKM 2023 – scientific programme
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 18: Social Systems, Opinion and Group Dynamics I
SOE 18.2: Talk
Thursday, March 30, 2023, 15:45–16:00, ZEU 260
Heider balance observed for multidimensional attributes — Joanna Linczuk1, Piotr J Górski1, Boleslaw K Szymanski2,3, and •Janusz A Hołyst1 — 1Faculty of Physics, Warsaw University of Technology, Warsaw, Poland — 2Social Cognitive Networks Academic Research Center, Rensselaer Polytechnic Institute, Troy, USA — 3Społeczna Akademia Nauk, Łódź, Poland
The majority of measured and studied social interactions arise from dyadic relations. An exception is the Heider Balance Theory (HBT) that postulates the existence of a social triad dynamics. Most of the past literature on HBT focuses on opinions about a single topic in such triads. In contrast, we study opinions of university students on a multidimensional set of topics. We discover limits of HBT observability by considering a novel agent-based model that accounts for: (i) multiple topics on opinions of individual students, (ii) influence of such opinions on dyadic relations (social link polarization), and (iii) influence of triadic relations on individual's sets of opinions on all topics. Using longitudinal records of university student behavior, we create a coevolving social network on which we introduce models of student interactions. We validate the model by showing that the triadic influence is empirically measurable for static and dynamic observables in this network. However, when we consider opinions on each topic separately from the others, the influence of triadic interactions is indistinguishable from the noise.