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Bipartite Stochastic Block Models with Tiny Clusters

2020-02-17 | |  55 |   45 |   0

Abstract 

We study the problem of finding clusters in random bipartite graphs. We present a simple two-step algorithm which provably finds even tiny clusters of size image.png where n is the number of vertices in the graph and image.png Previous algorithms were only able to identify clusters of size image.png We evaluate the algorithm on synthetic and on real-world data; the experiments show that the algorithm can find extremely small clusters even in presence of high destructive noise.

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