The social graph based on real data
Tomasz M. Gwizdałła, Aleksandra Piecuch
TL;DR
This work addresses constructing a realistic social topology from empirical demographic data rather than online networks. It introduces a multi-level, undirected social-graph model derived from Polish statistics (GUS), focusing on households and close social groups, with schools and workplaces forming higher-level cliques and a Poisson-based mechanism for smaller groupings. The approach yields connected graphs that reflect real-world constraints and avoids hub-dominated degree distributions. Empirical analysis across graph sizes from $10^3$ to $10^6$ reveals a power-law-like tail in the degree distribution with exponents around $8$–$11$, a roughly logarithmic scaling of radius and diameter, and a clustering coefficient that remains nearly constant with size, signaling small-world structure. These findings demonstrate the model's potential for realistic simulations of social processes and inform future extensions to incorporate hubs and alternative connection architectures.
Abstract
In this paper, we propose a model enabling the creation of a social graph corresponding to real society. The procedure uses data describing the real social relations in the community, like marital status or number of kids. Results show the power-law behavior of the distribution of links and, typical for small worlds, the independence of the clustering coefficient on the size of the graph.
