Why Networks?

Networks are a general langague for describing complex systemsof interacting entities

Many types of data are graphs

• Event Graphs
• Knowledge Graphs
• Disease Pathway
• Molecules
• Scene Graph
• Cell-cell similarity networks

Ways to Analyze Networks

• Predict the type/color of a given node (Node classification)
• Predict whether two nodes are linked (Link prediction)
• Identify densely linked clusters of nodes (Community detection)
• Measure similarity of two nodes/networks (Network similarity)

Social Circle Detection

A community detection example can be detecting social circle as we can see below