relation: http://eprints.imtlucca.it/747/ title: Kriging metamodel management in the design optimization of a CNG injection system creator: Dellino, Gabriella creator: Lino, Paolo creator: Meloni, Carlo creator: Rizzo, Alessandro subject: HB Economic Theory subject: QA Mathematics subject: QA75 Electronic computers. Computer science description: This paper deals with the use of Kriging metamodels in multi-objective engineering design optimization. The metamodel management issue to find the tradeoff between accuracy and efficiency is addressed. A comparative analysis of different strategies is conducted for a case study devoted to the design of a component of the injection system for Compressed Natural Gas (CNG) engines. The computational results are reported and analyzed for a performance assessment conducted with a data envelopment analysis approach. publisher: Elsevier date: 2009-04 type: Article type: PeerReviewed identifier: Dellino, Gabriella and Lino, Paolo and Meloni, Carlo and Rizzo, Alessandro Kriging metamodel management in the design optimization of a CNG injection system. Mathematics and computers in simulation, 79 (8). 2345 - 2360. ISSN 0378-4754 (2009) relation: http://www.sciencedirect.com/science/article/pii/S0378475409000238 relation: 10.1016/j.matcom.2009.01.013