Analysis of relationships between entities.

software which facilitates quantitative or qualitative analysis of social networks, by describing features of a network either through numerical or visual representation.

Weighted correlation network analysis, also known as weighted gene co-expression network analysis, is a widely used data mining method especially for studying biological networks based on pairwise correlations between variables.

an emergent scientific field that brings together traditional social network analysis, link analysis, social simulation and multi-agent systems within network science and network theory.

A transport network, or transportation network, is a network or graph in geographic space, describing an infrastructure that permits and constrains movement or flow.

a field of research in political science focusing on the links and interdependence between government's sections and other societal actors, aiming to understand the policy-making process and public policy outcomes.

In fluid dynamics, pipe network analysis is the analysis of the fluid flow through a hydraulics network, containing several or many interconnected branches.