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Article type: Research Article
Authors: Liu, Weijuna | Qi, Jianmingb | Jin, Yua | Zhou, Zhiyonga; * | Zhang, Xua
Affiliations: [a] School of Machinery, Shanghai Dianji University, Shanghai, P. R. China | [b] School of Business, Shanghai Dianji University, Shanghai, P. R. China
Correspondence: [*] Corresponding author. Zhiyong Zhou, School of Machinery, Shanghai Dianji University, Shanghai 201306, P. R. China. E-mail: zhouzhiyong789@tom.com.
Abstract: To enhance profitability of production cycle, any manufacturer needs effective product design and evaluation procedures. This study proposed a novel approach combining fuzzy analytic hierarchy process (FAHP) and multi-layer fuzzy inference system (MFIS). It is based on consumer online comments to improve product design. This method possesses several advantages over traditional design evaluation methods. It can quickly acquire consumer preferences, effectively handle multi-criteria decision problems and integrate uncertain and fuzzy information. The Fuzzy Analytic Hierarchy Process–Multi-layer Fuzzy Inference System (FAHP-MFIS) involves the following steps: screening of factors, hierarchical modeling, quantification of qualitative factors, and conversion of these factors into quantitative values. It is a knowledge-based system that uses logical rules. The quantity and levels of input variables directly correlates with the quantity of logical rules. However, with multi-factor and multi-level inference, the establishment of a rule base becomes impractical due to the overwhelming number of rules. To address this issue, the Taguchi orthogonal table is applied to reduce the number of logical rules. Taking a household oxygen generator for medical devices as an example, the proposed model is applied in real-time. In the first stage, web crawlers are used to collect user reviews of the household oxygen generators on large e-commerce platforms. Latent Dirichlet Allocation (LDA) models are used to screen for principal and sub-factors in the second stage. Then, sub-factors of the FAHP screening are used as inputs, and the principal factors are used as outputs. In the third stage, priority indicators are established based on principal factors such as Appearance, Basic Function, and Advanced Function. Established evaluation models are then used to rank the selected designs. The results show that the higher the priority index value of the product design scheme, the better the scheme, and vice versa. This study holds significant reference value in aiding enterprises to enhance the efficiency of their manufacturing cycle and determining the direction of product design and innovation with improved pace and accuracy. Moreover, it can be applied to other fields such as supply chain management, risk assessment, and investment decisions.
Keywords: Product design, FAHP, multi-layer fuzzy inference system, LDA, web crawlers, design evaluation
DOI: 10.3233/JIFS-230906
Journal: Journal of Intelligent & Fuzzy Systems, vol. 45, no. 5, pp. 7469-7492, 2023
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