Abstract
This paper examines the influence of two major aspects on the solution quality of surrogate model algorithms for computationally expensive black-box global optimization problems, namely the surrogate model choice and the method of iteratively selecting sample points. A random sampling strategy (algorithm SO-M-c) and a strategy where the minimum point of the response surface is used as new sample point (algorithm SO-M-s) are compared in numerical experiments. Various surrogate models and their combinations have been used within the SO-M-c and SO-M-s sampling frameworks. The Dempster–Shafer Theory approach used in the algorithm by Müller and Piché (J Glob Optim 51:79–104, 2011) has been used for combining the surrogate models. The algorithms are numerically compared on 13 deterministic literature test problems with 2–30 dimensions, an application problem that deals with groundwater bioremediation, and an application that arises in energy generation using tethered kites. NOMAD and the particle swarm pattern search algorithm (PSWARM), which are derivative-free optimization methods, have been included in the comparison. The algorithms have also been compared to a kriging method that uses the expected improvement as sampling strategy (FEI), which is similar to the Efficient Global Optimization (EGO) algorithm. Data and performance profiles show that surrogate model combinations containing the cubic radial basis function (RBF) model work best regardless of the sampling strategy, whereas using only a polynomial regression model should be avoided. Kriging and combinations including kriging perform in general worse than when RBF models are used. NOMAD, PSWARM, and FEI perform for most problems worse than SO-M-s and SO-M-c. Within the scope of this study a Matlab toolbox has been developed that allows the user to choose, among others, between various sampling strategies and surrogate models and their combinations. The open source toolbox is available from the authors upon request.





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Notes
For example, in iteration \(m\) a combination of RBF and kriging may be used, and in iteration \(m+1\) a combination of MARS, kriging, and polynomial may be used.
If there were failed trials for a test problem, the corresponding average relative errors are computed based on the successful trials.
For generating the data and performance profile plots the results of the algorithms for these problems are included.
For the 20-dimensional problem L20, for which a single function evaluation takes only fractions of a second, each trial needed approximately 30 days to complete the 2,000 evaluations due to the computational expense of updating the kriging surface and maximizing the expected improvement.
Abbreviations
- DACE:
-
Design and analysis of computer experiments
- DST:
-
Dempster–Shafer Theory
- FEI:
-
Expected improvement algorithm by Forrester et al. [12]
- GM:
-
Global minima
- K:
-
Kriging model
- LM:
-
Local minima
- LOOCV:
-
Leave-one-out cross-validation
- M, MARS:
-
Multivariate adaptive regression spline
- NOMAD:
-
Nonlinear optimization by mesh adaptive direct search
- P:
-
Polynomial regression model
- PSWARM:
-
Particle swarm pattern search algorithm
- R, RBF:
-
Radial basis function surrogate model
- SEM:
-
Standard error of means
- SO–M:
-
Surrogate Optimization-Mixture
- SO-M-c:
-
Surrogate Optimization-Mixture-candidate sampling
- SO-M-s:
-
Surrogate Optimization-Mixture-surface minimum sampling
- \(\mathbf {x}\) :
-
Continuous variable vector, \(\mathbf {x}\in \mathbb {R}^d\)
- \(\mathbf {x}^T\) :
-
Transpose of \(\mathbf {x}\)
- \(x_i\) :
-
\(i\)th Continuous variable, see Eq. (1b)
- \(d\) :
-
Problem dimension
- \(n_{0}\) :
-
Number of points in the initial experimental design
- \(n\) :
-
Number of function evaluations obtained so far
- \(k\) :
-
Number of points in the validation set for cross-validation
- \(\Omega \) :
-
Box-constrained variable domain
- \(w_{r}\) :
-
Weight of the \(r\)th model in the combination, see Eq. (2)
- \(s_{r}(\cdot )\) :
-
\(r\)th Surrogate model in the combination, see Eq. (2)
- \(\mathcal {S}\) :
-
Set of already evaluated sample points, \(\mathcal {S}=\{\mathbf {x}_1,\ldots ,\mathbf {x}_n\}\)
- \(\varvec{\chi }_\jmath \) :
-
\(\jmath \)th Candidate point, \(\jmath = 1,\ldots ,t\)
- \(\mathbf {x}_\text {best}\) :
-
Best point found so far
- \(\mathbb {P}\) :
-
Perturbation probability of each variable, see Eq. (3)
References
Ackley, D.H.: A connectionist machine for genetic hillclimbing. Kluwer, Boston (1987)
Argatov, I., Rautakorpi, P., Silvennoinen, R.: Estimation of the mechanical energy output of the kite wind generator. Renew. Energy 34, 1525–1532 (2009)
Audet, C., Béchard, V., Le Digabel, S.: Nonsmooth optimization through mesh adaptive direct search and variable neighborhood search. J. Glob. Optim. 41, 299–318 (2008)
Björkman, M., Holmström, K.: Global optimization of costly nonconvex functions using radial basis functions. Optim. Eng. 1, 373–397 (2001)
Booker, A.J., Dennis Jr, J.E., Frank, P.D., Serafini, D.B., Torczon, V., Trosset, M.W.: A rigorous framework for optimization of expensive functions by surrogates. Struct. Multidiscip. Optim. 17, 1–13 (1999)
Breukels, J.: An engineering methodology for kite design. Ph.D. thesis, Delft University of Technology (2011)
Conn, A.R., Scheinberg, K., Vicente, L.N.: Introduction to Derivative-Free Optimization. SIAM, Philadelphia (2009)
De Jong, K.A.: An Analysis of the Behavior of a Class of Genetic Adaptive Systems. Ph.D. thesis, University of Michigan (1975)
Dixon, L.C.W., Szegö, G. P. (eds.): The global optimization problem: an introduction. In: Towards Global Optimization, vol. 2. North-Holland, Amsterdam (1978)
Espinet, A.J., Shoemaker, C.A.: Estimation of plume distribution for carbon sequestration using parameter estimation, optimization and monitoring data. Water Resour. Res. 49, 4442–4464 (2013)
Fagiano, L.: Control of tethered airfoils for high-altitude wind energy generation. Ph.D. thesis, Politecnico di Torino (2009)
Forrester, A., Sóbester, A., Keane, A.: Engineering Design Via Surrogate Modelling—a Practical Guide. Wiley, New York (2008)
Friedman, J.H.: Multivariate adaptive regression splines. Ann. Stat. 19, 1–67 (1991)
Glaz, B., Friedmann, P.P., Liu, L.: Surrogate based optimization of helicopter rotor blades for vibration reduction in forward flight. Struct. Multidiscip. Optim. 35, 341–363 (2008)
Goel, T., Haftka, R.T., Shyy, W., Queipo, N.V.: Ensemble of surrogates. Struct. Multidiscip. Optim. 33, 199–216 (2007)
Gutmann, H.-M.: A radial basis function method for global optimization. J. Glob. Optim. 19, 201–227 (2001)
Holmström, K., Quttineh, N.-H., Edvall, M.M.: An adaptive radial basis algorithm (ARBF) for expensive black-box mixed-integer constrained global optimization. J. Glob. Optim. 41, 447–464 (2008)
Houska, B.: Robustness and stability optimization of open-loop controlled power generating kites. Master’s thesis, Ruprecht-Karls-Universität Heidelberg, Fakultät für Mathematik und Informatik (2007)
Jekabsons, G.: ARESLab: adaptive regression splines toolbox for Matlab. Available at http://www.cs.rtu.lv/jekabsons/ (2010)
Jones, D.R.: A taxonomy of global optimization methods based on response surfaces. J. Glob. Optim. 21, 345–383 (2001)
Jones, D.R., Schonlau, M., Welch, W.J.: Efficient global optimization of expensive black-box functions. J. Glob. Optim. 13, 455–492 (1998)
Jouhaud, J.-C., Sagaut, P., Montagnac, M., Laurenceau, J.: A surrogate-model based multidisciplinary shape optimization method with application to a 2D subsonic airfoil. Comput. Fluids 36, 520–529 (2007)
Lam, X.B., Kim, Y.S., Hoang, A.D., Park, C.W.: Coupled aerostructural design optimization using the kriging model and integrated multiobjective optimization algorithm. J. Optim. Theory Appl. (2009). doi:10.1007/s10957-009-9520-9
Le Digabel, S.: Algorithm 909: nomad: nonlinear optimization with the MADS algorithm. ACM Trans. Math. Softw. 37:44:1–44:15 (2011)
Levy, A., Montalvo, A., Gomez, S., Galderon, A.: Topics in Global Optimization. Springer, New York (1981)
Li, C., Wang, F.-L., Chang, Y.-Q., Liu, Y.: A modified global optimization method based on surrogate model and its application in packing profile optimization of injection molding process. Int. J. Adv. Manuf. Technol. 48, 505–511 (2010)
Liao, X., Li, Q., Yang, X., Zhang, W., Li, W.: Multiobjective optimization for crash safety design of vehicles using stepwise regression model. Struct. Multidiscip. Optim. 35, 561–569 (2008)
Lophaven, S.N., Nielsen, H.B., Søndergaard, J.: DACE a Matlab kriging toolbox. Technical report, IMM-TR-2002-12 (2002)
Martin, J.D., Simpson, T.W.: Use of kriging models to approximate deterministic computer models. AIAA J. 43, 853–863 (2005)
Matheron, G.: Principles of geostatistics. Econ. Geol. 58, 1246–1266 (1963)
Michalewicz, Z.: Genetic Algorithms + Data Structures = Evolution Programs. Springer, Berlin (1992)
Moré, J.J., Wild, S.M.: Benchmarking derivative-free optimization algorithms. SIAM J. Optim. 20, 172–191 (2009)
Mühlenbein, H., Schomisch, D., Born, J.: The parallel genetic algorithm as function optimizer. Parallel Comput. 17, 619–632 (1991)
Müller, J., Piché, R.: Mixture surrogate models based on Dempster–Shafer theory for global optimization problems. J. Glob. Optim. 51, 79–104 (2011)
Myers, R.H., Montgomery, D.C.: Response Surface Methodology, Process and Product Optimization Using Designed Experiments. Wiley-Interscience Publication, New York (1995)
Powell, M.J.D.: An efficient method for finding the minimum of a function of several variables without calculating derivatives. Comput. J. 7, 155–162 (1964)
Powell, M.J.D.: The theory of radial basis function approximation in 1990. In: Light, W.A. (ed.) Advances in Numerical Analysis, vol. 2: Wavelets, Subdivision Algorithms and Radial Basis Functions. pp. 105–210, Oxford University Press, Oxford (1992)
Queipo, N.V., Haftka, R.T., Shyy, W., Goel, T., Vaidyanathan, R., Tucker, P.K.: Surrogate-based analysis and optimization. Prog. Aerosp. Sci. 41, 1–28 (2005)
Regis, R.G., Shoemaker, C.A.: Constrained global optimization of expensive black-box functions using radial basis functions. J. Glob. Optim. 31, 153–171 (2005)
Regis, R.G., Shoemaker, C.A.: A stochastic radial basis function method for the global optimization of expensive functions. INFORMS J. Comput. 19, 497–509 (2007)
Regis, R.G., Shoemaker, C.A.: Improved strategies for radial basis function methods for global optimization. J. Glob. Optim. 37, 113–135 (2007)
Regis, R.G., Shoemaker, C.A.: Parallel radial basis function methods for the global optimization of expensive functions. Eur. J. Oper. Res. 182, 514–535 (2007)
Regis, R.G., Shoemaker, C.A.: Parallel stochastic global optimization using radial basis functions. INFORMS J. Comput. 21, 411–426 (2009)
Regis, R.G., Shoemaker, C.A.: A quasi-multistart framework for global optimization of expensive functions using response surface models. J. Glob. Optim. (2012). doi:10.1007/s10898-012-9940-1
Regis, R.G., Shoemaker, C.A.: Combining radial basis function surrogates and dynamic coordinate search in high-dimensional expensive black-box optimization. Eng. Optim. 45, 529–555 (2013)
Schoen, F.: A wide class of test functions for global optimization. J. Glob. Optim. 3, 133–137 (1993)
Tolson, B.A., Shoemaker, C.A.: Dynamically dimensioned search algorithm for computationally efficient watershed model calibration. Water Res. Res. 43, W01413 (2007)
Törn, A., Zilinskas, A.: Global Optimization. In: Lecture Notes in Computer Science, vol. 350. Springer, Berlin (1989)
Vaz, A.I.F., Vicente, L.N.: A particle swarm pattern search method for bound constrained global optimization. J. Glob. Optim. 39, 197–219 (2007)
Viana, F.A.C., Haftka, R.T., Watson, L.T.: Efficient global optimization algorithm assisted by multiple surrogate techniques. J. Glob. Optim. 56, 669–689 (2013)
Yang, R.J., Wang, N., Tho, C.H., Bobineau, J.P., Wang, B.P.: Metamodeling development for vehicle frontal impact simulation. J. Mech. Des. 127, 1014–1021 (2005)
Yoon, J.-H., Shoemaker, C.A.: Comparison of optimization methods for groundwater bioremediation. J. Water Resour. Plan. Manag. 125, 54–63 (1999)
Acknowledgments
Partial support for this research was provided by NSF CISE 1116298 to Prof. Shoemaker and by DOE-SciDAC DE-SC0006791 to Prof. Mahowald and Prof. Shoemaker. The first author also thanks the Finnish Academy of Science and Letters, Vilho, Yrjö and Kalle Väisälä Foundation for the financial support during her research visit as Ph.D. student in Applied Mathematics at Cornell University.
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Müller, J., Shoemaker, C.A. Influence of ensemble surrogate models and sampling strategy on the solution quality of algorithms for computationally expensive black-box global optimization problems. J Glob Optim 60, 123–144 (2014). https://doi.org/10.1007/s10898-014-0184-0
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DOI: https://doi.org/10.1007/s10898-014-0184-0