Patterns In Social Systems Research Articles

Machine learning-based prediction of Q-voter model in complex networks

In this article, we consider machine learning algorithms to accurately predict two variables associated with the Q-voter model in complex networks, i.e. (i) the consensus time and (ii) the frequency of opinion changes. Leveraging nine topological measures of the underlying networks, we verify that the clustering coefficient (C) and information centrality emerge as the most important predictors for these outcomes. Notably, the machine learning algorithms demonstrate accuracy across three distinct initialization methods of the Q-voter model, including random selection and the involvement of high- and low-degree agents with positive opinions. By unraveling the intricate interplay between network structure and dynamics, this research sheds light on the underlying mechanisms responsible for polarization effects and other dynamic patterns in social systems. Adopting a holistic approach that comprehends the complexity of network systems, this study offers insights into the intricate dynamics associated with polarization effects and paves the way for investigating the structure and dynamics of complex systems through modern methods of machine learning.

Identification and impact of discoverers in online social systems.

Understanding the behavior of users in online systems is of essential importance for sociology, system design, e-commerce, and beyond. Most existing models assume that individuals in diverse systems, ranging from social networks to e-commerce platforms, tend to what is already popular. We propose a statistical time-aware framework to identify the users who differ from the usual behavior by being repeatedly and persistently among the first to collect the items that later become hugely popular. Since these users effectively discover future hits, we refer them as discoverers. We use the proposed framework to demonstrate that discoverers are present in a wide range of real systems. Once identified, discoverers can be used to predict the future success of new items. We finally introduce a simple network model which reproduces the discovery patterns observed in the real data. Our results open the door to quantitative study of detailed temporal patterns in social systems.

Aspects of causal processes in social systems

Aims to facilitate the work of researchers studying problems/phenomena in social systems from a systemic point of view. Discusses the type of causal processes which exist in social systems and how patterns in social systems can be revealed. Presents four causal processes: historical, functional, cybernetic and pattern. Typologizes pattern processes into the four categories of empirical generalizations, models, theories and social laws. Elaborates on the relationship between models and theories relative to systemic research strategy.