Knowledge-based global optimization of cold-formed steel columns

H. Liu; T. Igusa; B. W. Schafer

doi:10.1016/j.tws.2004.01.001

Knowledge-based global optimization of cold-formed steel columns

H. Liu, T. Igusa, B. W. Schafer

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

A knowledge-based global optimization scheme, well-suited for the cross-sections of cold-formed steel structures was developed. The scheme operated within a low-dimensional expert system and used a numerical implementation of the direct strength method (DSM) for the objective function. The expert knowledge for the optimization process was evaluated and added using the feature-based classification trees which indicated the need for tip lengths etc. An expert-based feature space and its associated classification tree effectively encapsulated the knowledge gained in the design optimization.

Original language	English (US)
Pages (from-to)	785-801
Number of pages	17
Journal	Thin-Walled Structures
Volume	42
Issue number	6
DOIs	https://doi.org/10.1016/j.tws.2004.01.001
State	Published - Jun 2004
Externally published	Yes

Keywords

Classifier model
Cold-formed steel
Global optimization
Knowledge

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanical Engineering

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10.1016/j.tws.2004.01.001

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title = "Knowledge-based global optimization of cold-formed steel columns",

abstract = "A knowledge-based global optimization scheme, well-suited for the cross-sections of cold-formed steel structures was developed. The scheme operated within a low-dimensional expert system and used a numerical implementation of the direct strength method (DSM) for the objective function. The expert knowledge for the optimization process was evaluated and added using the feature-based classification trees which indicated the need for tip lengths etc. An expert-based feature space and its associated classification tree effectively encapsulated the knowledge gained in the design optimization.",

keywords = "Classifier model, Cold-formed steel, Global optimization, Knowledge",

author = "H. Liu and T. Igusa and Schafer, {B. W.}",

note = "Funding Information: This material is based upon work supported by the National Science Foundation at Johns Hopkins University under Grant Numbers DMI-0087032 and CMS-0084590. This research support is gratefully acknowledged.",

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AU - Liu, H.

AU - Igusa, T.

AU - Schafer, B. W.

N1 - Funding Information: This material is based upon work supported by the National Science Foundation at Johns Hopkins University under Grant Numbers DMI-0087032 and CMS-0084590. This research support is gratefully acknowledged.

PY - 2004/6

Y1 - 2004/6

N2 - A knowledge-based global optimization scheme, well-suited for the cross-sections of cold-formed steel structures was developed. The scheme operated within a low-dimensional expert system and used a numerical implementation of the direct strength method (DSM) for the objective function. The expert knowledge for the optimization process was evaluated and added using the feature-based classification trees which indicated the need for tip lengths etc. An expert-based feature space and its associated classification tree effectively encapsulated the knowledge gained in the design optimization.

AB - A knowledge-based global optimization scheme, well-suited for the cross-sections of cold-formed steel structures was developed. The scheme operated within a low-dimensional expert system and used a numerical implementation of the direct strength method (DSM) for the objective function. The expert knowledge for the optimization process was evaluated and added using the feature-based classification trees which indicated the need for tip lengths etc. An expert-based feature space and its associated classification tree effectively encapsulated the knowledge gained in the design optimization.

KW - Classifier model

KW - Cold-formed steel

KW - Global optimization

KW - Knowledge

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JO - Thin-Walled Structures

JF - Thin-Walled Structures

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ER -

Knowledge-based global optimization of cold-formed steel columns

Abstract

Keywords

ASJC Scopus subject areas

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