Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

# A Proposed Extended Version of the Hadi-Vencheh Model to Improve Multiple Criteria ABC Inventory Classification

Version 1 : Received: 23 October 2020 / Approved: 26 October 2020 / Online: 26 October 2020 (14:01:43 CET)

A peer-reviewed article of this Preprint also exists.

Lin, P.-C.; Chang, H.-C. A Proposed Extended Version of the Hadi-Vencheh Model to Improve Multiple-Criteria ABC Inventory Classification. Appl. Sci. 2020, 10, 8233. Lin, P.-C.; Chang, H.-C. A Proposed Extended Version of the Hadi-Vencheh Model to Improve Multiple-Criteria ABC Inventory Classification. Appl. Sci. 2020, 10, 8233.

## Abstract

In this paper, we present an extended version of the Hadi-Vencheh model for multiple criteria ABC inventory classification. The proposed model is a nonlinear weighted product model (WPM) which determines a common set of weights for all the items. Our proposed nonlinear WPM incorporates multiple criteria with different measure units, without converting the performance of each inventory item in terms of each criterion into a normalized attribute value, thereby providing an improvement over the model proposed by Hadi-Vencheh. Our study mainly includes various criteria for ABC classification, and demonstrates an efficient algorithm for solving nonlinear programming problems in which the feasible solution set does not have to be convex. The algorithm presented in this study improves the solution efficiency of the Canonical Coordinates Method (CCM) algorithm substantially when applied to large scale, nonlinear programming problems. The modified algorithm was tested to compare our proposed model results to the results derived using the Hadi-Vencheh model and demonstrate the algorithm's efficacy. The practical implications of the study are to develop an efficient nonlinear optimization solver by optimizing the quality of existing solutions, thus improving time and space efficiency.

## Keywords

non-linear programming 1; Hadi-Vencheh model 2; multiple criteria ABC inventory classification 3

## Subject

Computer Science and Mathematics, Algebra and Number Theory

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