CUED Publications database

Robust network reconstruction in polynomial time

Hayden, D and Yuan, Y and Goncalves, J (2012) Robust network reconstruction in polynomial time. Proceedings of the IEEE Conference on Decision and Control. pp. 4616-4621. ISSN 0191-2216

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Abstract

This paper presents an efficient algorithm for robust network reconstruction of Linear Time-Invariant (LTI) systems in the presence of noise, estimation errors and unmodelled nonlinearities. The method here builds on previous work [1] on robust reconstruction to provide a practical implementation with polynomial computational complexity. Following the same experimental protocol, the algorithm obtains a set of structurally-related candidate solutions spanning every level of sparsity. We prove the existence of a magnitude bound on the noise, which if satisfied, guarantees that one of these structures is the correct solution. A problem-specific model-selection procedure then selects a single solution from this set and provides a measure of confidence in that solution. Extensive simulations quantify the expected performance for different levels of noise and show that significantly more noise can be tolerated in comparison to the original method. © 2012 IEEE.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Control
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:26
Last Modified: 22 Dec 2014 01:20
DOI: 10.1109/CDC.2012.6426135