Network Analysis Resources & Updates
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📃Network analysis of protein interaction data: an introduction

💥Good introductory document from EBI

🌐 Study the tutorial

📲Channel: @ComplexNetworkAnalysis

#tutorial
🎞 Emergence of echo chambers and polarization dynamics in social networks

💥Echo chambers and opinion polarization, recently quantified in several sociopolitical contexts and across different social media, raise concerns on their potential impact on the spread of misinformation and on the openness of debates. Despite increasing efforts, the dynamics leading to the emergence of these phenomena stay unclear. In this talk, we will first review empirical evidence for the presence of echo chambers across social media platforms, by performing a comparative analysis among Gab, Facebook, Reddit, and Twitter. Then, we will present a simple modeling framework able to reproduce the observed opinion segregation in the social network. We consider networked agents characterized by heterogeneous activities and homophily, whose opinions can be reinforced by interactions with like-minded peers. We show that the transition between a global consensus and emerging polarized states in the network can be analytically characterized as a function of the social influence of the agents and the controversialness of the topic discussed. Finally, we consider a generalization to multiple opinions with respect to different topics. Inspired by skew coordinate systems recently proposed in natural language processing models, we frame this problem in a formalism in which opinions evolve in a multidimensional space where topics form a non-orthogonal basis. We show that this approach can reproduce the correlations between extreme opinions on different topics found in survey data.

📽 Watch

📱Channel: @ComplexNetworkAnalysis

#video #tutorial
🎞 Order and Disorder in Network Science

💥A recurring theme in the study of complex systems is the emergence of order and disorder in systems. Historically, one can think of the Boltzmann equation, and the irreversible growth of disorder at the macroscopic scale from reversible dynamics at the microscopic scale. Reversely, scientists have been fascinated by the emergence of spatial and temporal patterns in interacting systems. In this talk, I will give a personal view on these two sides within the field of network science, whose combination of order and randomness is at the core of several works on network dynamics and algorithms.

📽 Watch

📱Channel: @ComplexNetworkAnalysis

#video #tutorial
📄Machine Learning in Network Centrality Measures: Tutorial and Outlook

📘Journal: ACM Computing Surveys (I.F=10.282)

🗓Publish year: 2019

📎 Study paper

📱Channel: @ComplexNetworkAnalysis
#paper #tutorial #centrality