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I've looked at a number of packages for graph layout (Graphviz, Gephi, Cytoscape, NetworkX to name a few of the more prevalent) and none of them seem to scale to this sort of size. What techniques exist for either visualizing graphs of this size or reducing them to something more manageable?
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Meet Cosmograph — the fastest network graph visualization tool that works in the browser. It's capable of visualizing networks that have a million nodes and edges, and that's not the limit! It's free to use, everyone can go to https://cosmograph.app, upload a CSV and get it visualized!
Also, NetworkX cannot handle visualizations of large graphs, so you need to reach out for another drawing library and learn how to use it.
The Force Atlas layout is from Gephi – it works best for small networks (up to 10,000 nodes) and can be slow.
The most effective way to visualize graphs is through a node-link model, where nodes represent entities and links represent connections. These nodes and links can be anything – transactions between accounts, devices on a network, or phone calls between friends.
Gephi's OpenOrd visualisation plugin can layout millions of nodes.
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