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Network Inference From Consensus Dynamics With Unknown Parameters

Author(s)
Zhu, Yu; Schaub, Michael T; Jadbabaie, Ali; Segarra, Santiago
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Abstract
© 2015 IEEE. We explore the problem of inferring the graph Laplacian of a weighted, undirected network from snapshots of a single or multiple discrete-time consensus dynamics, subject to parameter uncertainty, taking place on the network. Specifically, we consider three problems in which we assume different levels of knowledge about the diffusion rates, observation times, and the input signal power of the dynamics. To solve these underdetermined problems, we propose a set of algorithms that leverage the spectral properties of the observed data and tools from convex optimization. Furthermore, we provide theoretical performance guarantees associated with these algorithms. We complement our theoretical work with numerical experiments, that demonstrate how our proposed methods outperform current state-of-the-art algorithms and showcase their effectiveness in recovering both synthetic and real-world networks.
Date issued
2020
URI
https://hdl.handle.net/1721.1/148599
Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering; Massachusetts Institute of Technology. Institute for Data, Systems, and Society
Journal
IEEE Transactions on Signal and Information Processing over Networks
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Zhu, Yu, Schaub, Michael T, Jadbabaie, Ali and Segarra, Santiago. 2020. "Network Inference From Consensus Dynamics With Unknown Parameters." IEEE Transactions on Signal and Information Processing over Networks, 6.
Version: Author's final manuscript

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