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AIChE Journal
Article . 2022 . Peer-reviewed
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Article . 2022
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Article . 2022 . Peer-reviewed
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Surrogate‐based optimization of a periodic rescheduling algorithm

Authors: Heljanko, Keijo; Harjunkoski; Iiro; Ikonen, Teemu;

Surrogate‐based optimization of a periodic rescheduling algorithm

Abstract

AbstractPeriodic rescheduling is an iterative method for real‐time decision‐making on industrial process operations. The design of such methods involves high‐level when‐to‐schedule and how‐to‐schedule decisions, the optimal choices of which depend on the operating environment. The evaluation of the choices typically requires computationally costly simulation of the process, which—if not sufficiently efficient—may result in a failure to deploy the system in practice. We propose the continuous control parameter choices, such as the re‐optimization frequency and horizon length, to be determined using surrogate‐based optimization. We demonstrate the method on real‐time rebalancing of a bike sharing system. Our results on three test cases indicate that the method is useful in reducing the computational cost of optimizing an online algorithm in comparison to the full factorial sampling.

Countries
Finland, Finland
Keywords

Computer and information sciences, ta213, MODELS, online scheduling, rolling horizon, FRAMEWORK, surrogate modeling, BAYESIAN OPTIMIZATION, Kriging, DESIGN, SCOPE, SYSTEMS, SIMULATION, re-optimization, kriging, REBALANCING PROBLEM, GLOBAL OPTIMIZATION

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    5
    popularity
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    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Top 10%
Green
hybrid