Impacts of problem scale and sampling strategy on surrogate model accuracy: An application of surrogate-based optimization in building design

Ding Yang, Y Sun, D. Di Stefano, Michela Turrin, Sevil Sariyildiz

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

6 Citations (Scopus)
25 Downloads (Pure)

Abstract

Surrogate-based Optimization is a useful approach when the objective function is computationally expensive to evaluate, compared to Simulation-based Optimization. In the surrogate-based method, analytically tractable “surrogate models” (also known as “Response Surface Models — RSMs” or “metamodels”), are constructed and validated for each optimization objective and constraint at relatively low computational cost. They are useful for replacing the time-consuming simulations during the optimization; quickly locating the area where the optimum is expected to be for further search; and gaining insight into the global behavior of the system. Nevertheless, there are still concerns about the surrogate model accuracy and the number of simulations necessary to get a reasonably accurate surrogate model. This paper aims to unveil: 1) the possible impacts of problem scale and sampling strategy on the surrogate model accuracy; and 2) the potential of Surrogatebased Optimization in finding high quality solutions for building envelope design optimization problems. For this purpose, a series of multi-objective optimization test cases that mainly consider daylight and energy performance were conducted within the same time frame. Then, the results were compared, in pair, based on which discussions were made. Finally, the corresponding conclusions were obtained after the comparative study.
Original languageEnglish
Title of host publication2016 IEEE Congress on Evolutionary Computation (CEC)
PublisherIEEE
Pages4199-4207
ISBN (Print)978-1-5090-0622-9
DOIs
Publication statusPublished - 21 Nov 2016
Event2016 IEEE Congress on Evolutionary Computation, CEC 2016 - Vancouver, Canada
Duration: 24 Jul 201629 Jul 2016

Conference

Conference2016 IEEE Congress on Evolutionary Computation, CEC 2016
Abbreviated titleCEC 2016
CountryCanada
CityVancouver
Period24/07/1629/07/16

Keywords

  • multi-objective optimization
  • surrogate-based optimization
  • problem scale
  • sampling strategy
  • response surface model
  • design of experiments

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