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authorThibaut Horel <thibaut.horel@gmail.com>2015-02-01 17:47:12 -0500
committerThibaut Horel <thibaut.horel@gmail.com>2015-02-01 17:47:44 -0500
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+In the Graph Inference problem, one seeks to recover the edges of an unknown
+graph from the observations of influence cascades propagating over this graph.
+In this paper, we approach this problem from the sparse recovery perspective
+and provide an algorithm which recovers the graph edges with high probability
+provided that the number of measurements is $\Omega(s\log m)$ where $s$ is the
+maximum degree of the graph and $m$ is the number of nodes.
+Furthermore, we show that our algorithm also recovers the edge weights (the
+parameters of the diffusion process) and is robust in the context of
+approximate sparsity. Finally we provide an almost matching lower bound of
+$\Omega(s\log\frac{m}{s})$.