LabCentra: Who matters in a network, and why

Centra is an interactive PageRank engine that measures which nodes matter most in a network and lets you see why. The signature technique is the random-surfer step - teleport plus dangling-mass redistribution - iterated to its fixed point, with nodes sized by rank and convergence you can scrub through, validated by the two defining invariants that ranks sum to 1 and satisfy the PageRank equation. It is a from-scratch, dependency-light build you can download and run locally.