Large networks visualization

Plenty of work has been done on the field

Our objectives

• Apply state of the art of netViz
• Report what worked (and didn't) in our industry setting
• We open sourced some of our components for the community to reuse

Some netviz tools

• NetworkX
• Gephi
• Cytoscape
• Pajek
• NetworkX
• Many others

Why develop another tool?

• Integration
• Web-based
• Scalability
• Industry

Best practices

Customer's needs

• Get an overview of the network
• Explore nodes of interest's ego-networks on demand

Best practice #1: offer overviews and ego-network modes

Overview mode

Too much information

Rank-by-relevance framework

Best practice #2 filter and display the most important nodes

Rank-by-relevance framework 2

Best practice #3 include neighborhoods in the selection

NetClustering.js

Force-in-a-box

Best practice #4 Cluster and separate groups

Jump into clusters

Jump into clusters

Jump into clusters

Jump into clusters

Best practice #5 Allow users to filter by cluster

Node navigator

Best practice #6 Inform users of what they are seeing

Overview

Ego-network view

Ego-distance mode

Best practice #7 Allow node expansion on demand

Node pining

Best practice #8 Allow custom layouts

Validation

Fraud, waste and abuse

Police chat networks

Drug latent communities

Contributions

• Best practices
• Node Navigator
• Open Sourced force-in-a-box layout
• Open Sourced in-browser clustering
• Rank-by-relevance framework