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Optimal control of aging in complex networks.

ABSTRACT: Many complex systems experience damage accumulation, which leads to aging, manifest as an increasing probability of system collapse with time. This naturally raises the question of how to maximize health and longevity in an aging system at minimal cost of maintenance and intervention. Here, we pose this question in the context of a simple interdependent network model of aging in complex systems and show that it exhibits cascading failures. We then use both optimal control theory and reinforcement learning alongside a combination of analysis and simulation to determine optimal maintenance protocols. These protocols may motivate the rational design of strategies for promoting longevity in aging complex systems with potential applications in therapeutic schedules and engineered system maintenance.

SUBMITTER: Sun ED

PROVIDER: S-EPMC7456090 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Optimal control of aging in complex networks.

Sun Eric D ED Michaels Thomas C T TCT Mahadevan L L

Proceedings of the National Academy of Sciences of the United States of America 20200812 34

Many complex systems experience damage accumulation, which leads to aging, manifest as an increasing probability of system collapse with time. This naturally raises the question of how to maximize health and longevity in an aging system at minimal cost of maintenance and intervention. Here, we pose this question in the context of a simple interdependent network model of aging in complex systems and show that it exhibits cascading failures. We then use both optimal control theory and reinforcemen ...[more]

PMID: 32817469

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